Siemens SCALANCE XM-400, SCALANCE XM-500 Configuration Manual

SIMATIC NET
Industrial Ethernet switches SCALANCE XM-400/XR-500 Web Based Management (WBM)
1
Configuration Manual
Description
IP addresses
Technical basics
Configuring with Web Based Management
Troubleshooting/FAQ
Appendix A
2
3
4
5
6
A
05/2017
C79000-G8976-C248-12
Legal information Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG Division Process Industries and Drives Postfach 48 48 90026 NÜRNBERG GERMANY
C79000-G8976-C248-12 Ⓟ 05/2017 Subject to change
Copyright © Siemens AG 2011 - 2017. All rights reserved

Table of contents

1 Introduction.................................................................................................................................................11
1.1 Information on this configuration manual...............................................................................11
2 Description..................................................................................................................................................15
2.1 Product characteristics...........................................................................................................15
2.2 Requirements for installation and operation...........................................................................17
2.3 C-PLUG / KEY-PLUG............................................................................................................17
2.4 Power over Ethernet (PoE)....................................................................................................18
3 IP addresses...............................................................................................................................................21
3.1 IPv4 / IPv6..............................................................................................................................21
3.2 IPv4 address..........................................................................................................................23
3.2.1 Structure of an IPv4 address..................................................................................................23
3.2.2 Initial assignment of an IPv4 address....................................................................................24
3.2.3 Address assignment with DHCP............................................................................................25
3.3 IPv6 addresses......................................................................................................................26
3.3.1 IPv6 terms..............................................................................................................................26
3.3.2 Structure of an IPv6 address..................................................................................................28
4 Technical basics.........................................................................................................................................31
4.1 Configuration limits.................................................................................................................31
4.2 SNMP.....................................................................................................................................35
4.3 RCDP.....................................................................................................................................37
4.4 VLAN......................................................................................................................................37
4.4.1 Basics.....................................................................................................................................37
4.4.2 VLAN tagging.........................................................................................................................38
4.4.3 Private VLAN..........................................................................................................................40
4.4.4 VLAN tunnel...........................................................................................................................42
4.5 Mirroring.................................................................................................................................43
4.6 Redundancy mechanism........................................................................................................44
4.6.1 Spanning Tree........................................................................................................................44
4.6.1.1 RSTP, MSTP, CIST...............................................................................................................45
4.6.2 HRP........................................................................................................................................46
4.6.3 MRP.......................................................................................................................................47
4.6.3.1 MRP - Media Redundancy Protocol ......................................................................................47
4.6.3.2 Configuration in WBM............................................................................................................50
4.6.3.3 Configuration in STEP 7.........................................................................................................50
4.6.4 Standby..................................................................................................................................55
4.6.5 Link Check.............................................................................................................................56
4.7 Link aggregation.....................................................................................................................57
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4.8 Routing function.....................................................................................................................58
4.8.1 Static routing..........................................................................................................................58
4.8.2 VRRP.....................................................................................................................................59
4.8.2.1 VRRPv2.................................................................................................................................59
4.8.2.2 VRRP3...................................................................................................................................59
4.8.3 OSPF.....................................................................................................................................60
4.8.3.1 OSPFv2..................................................................................................................................60
4.8.3.2 OSPFv3..................................................................................................................................64
4.8.4 RIP.........................................................................................................................................65
4.8.4.1 RIPv2.....................................................................................................................................65
4.8.4.2 RIPng.....................................................................................................................................66
4.8.5 PIM.........................................................................................................................................66
4.9 NAT/NAPT.............................................................................................................................68
5 Configuring with Web Based Management................................................................................................73
5.1 Web Based Management.......................................................................................................73
5.2 Login......................................................................................................................................74
5.3 The "Information" menu.........................................................................................................78
5.3.1 Start page...............................................................................................................................78
5.3.2 Versions.................................................................................................................................83
5.3.3 Identification & Maintenance..................................................................................................84
5.3.4 ARP / Neighbors....................................................................................................................86
5.3.4.1 ARP Table..............................................................................................................................86
5.3.4.2 IPv6 Neighbor Table..............................................................................................................87
5.3.5 Log Table...............................................................................................................................87
5.3.6 Faults.....................................................................................................................................89
5.3.7 Redundancy...........................................................................................................................91
5.3.7.1 Spanning Tree........................................................................................................................91
5.3.7.2 VRRP statistics......................................................................................................................94
5.3.7.3 VRRP Statistics......................................................................................................................96
5.3.7.4 Ring redundancy....................................................................................................................98
5.3.7.5 Standby................................................................................................................................100
5.3.7.6 Link Check...........................................................................................................................101
5.3.8 Ethernet Statistics................................................................................................................103
5.3.8.1 Interface Statistics................................................................................................................103
5.3.8.2 Packet Size..........................................................................................................................104
5.3.8.3 Packet Type.........................................................................................................................105
5.3.8.4 Packet Error.........................................................................................................................106
5.3.8.5 History..................................................................................................................................108
5.3.9 Unicast.................................................................................................................................109
5.3.10 Multicast...............................................................................................................................110
5.3.10.1 Multicast...............................................................................................................................110
5.3.10.2 IGMP Groups.......................................................................................................................112
5.3.11 LLDP....................................................................................................................................113
5.3.12 Fiber Monitoring Protocol.....................................................................................................114
5.3.13 IPv4 routing..........................................................................................................................116
5.3.13.1 Routing Table.......................................................................................................................116
5.3.13.2 OSPFv2 Interfaces...............................................................................................................117
5.3.13.3 OSPFv2 Neighbors..............................................................................................................118
5.3.13.4 OSPFv2 Virtual Neighbors...................................................................................................120
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5.3.13.5 OSPFv2 LSDB.....................................................................................................................122
5.3.13.6 RIPv2 Statistics....................................................................................................................123
5.3.13.7 NAT Translations.................................................................................................................124
5.3.13.8 PIM interfaces......................................................................................................................125
5.3.13.9 PIM Neighbors.....................................................................................................................126
5.3.13.10 PIM Routes..........................................................................................................................127
5.3.13.11 PIM RPs...............................................................................................................................128
5.3.13.12 PIM BSRs.............................................................................................................................129
5.3.13.13 MSDP Cache.......................................................................................................................130
5.3.14 IPv6 routing..........................................................................................................................131
5.3.14.1 IPv6 Routing Table..............................................................................................................131
5.3.14.2 OSPFv3 Interfaces...............................................................................................................132
5.3.14.3 OSPFv3 Neighbors..............................................................................................................133
5.3.14.4 OSPFv3 Virtual Neighbors...................................................................................................135
5.3.14.5 OSPFv3 AS-Scope LSDB....................................................................................................136
5.3.14.6 OSPFv3 Area-Scope LSDB.................................................................................................137
5.3.14.7 OSPFv3 Link-Scope LSDB..................................................................................................139
5.3.14.8 RIPng Statistics....................................................................................................................140
5.3.15 DHCP Server.......................................................................................................................141
5.3.16 SNMP...................................................................................................................................143
5.3.17 Security................................................................................................................................143
5.3.17.1 Overview..............................................................................................................................143
5.3.17.2 Supported Function Rights...................................................................................................146
5.3.17.3 Roles....................................................................................................................................147
5.3.17.4 Groups.................................................................................................................................148
5.4 The "System" menu.............................................................................................................148
5.4.1 Configuration........................................................................................................................148
5.4.2 General................................................................................................................................152
5.4.2.1 Device..................................................................................................................................152
5.4.2.2 Coordinates..........................................................................................................................153
5.4.3 Agent IP...............................................................................................................................154
5.4.4 DNS......................................................................................................................................154
5.4.5 Restart..................................................................................................................................156
5.4.6 Load & Save.........................................................................................................................158
5.4.6.1 HTTP....................................................................................................................................159
5.4.6.2 TFTP....................................................................................................................................162
5.4.6.3 Passwords............................................................................................................................166
5.4.7 Events..................................................................................................................................167
5.4.7.1 Configuration........................................................................................................................167
5.4.7.2 Severity Filters.....................................................................................................................170
5.4.8 SMTP client..........................................................................................................................171
5.4.9 DHCP...................................................................................................................................173
5.4.9.1 DHCP Client.........................................................................................................................173
5.4.9.2 DHCP Server.......................................................................................................................174
5.4.9.3 Port-IP Address Mapping.....................................................................................................178
5.4.9.4 Port Range...........................................................................................................................179
5.4.9.5 DHCP Options......................................................................................................................180
5.4.9.6 Relay Agent Information.......................................................................................................183
5.4.9.7 Static Leases........................................................................................................................184
5.4.10 SNMP...................................................................................................................................186
5.4.10.1 General................................................................................................................................186
5.4.10.2 Traps....................................................................................................................................189
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5.4.10.3 v3 Groups.............................................................................................................................190
5.4.10.4 v3 Users...............................................................................................................................192
5.4.11 System Time........................................................................................................................194
5.4.11.1 Manual Setting.....................................................................................................................195
5.4.11.2 DST Overview......................................................................................................................197
5.4.11.3 DST Configuration................................................................................................................199
5.4.11.4 SNTP Client.........................................................................................................................202
5.4.11.5 NTP Client............................................................................................................................205
5.4.11.6 SIMATIC time client.............................................................................................................207
5.4.11.7 PTP Client............................................................................................................................208
5.4.12 Automatic logout..................................................................................................................210
5.4.13 Configuration of the SELECT/SET button............................................................................210
5.4.14 Syslog Client........................................................................................................................212
5.4.15 Ports.....................................................................................................................................214
5.4.15.1 Overview..............................................................................................................................214
5.4.15.2 Configuration........................................................................................................................217
5.4.16 Fault Monitoring...................................................................................................................222
5.4.16.1 Power Supply.......................................................................................................................222
5.4.16.2 Link Change.........................................................................................................................223
5.4.16.3 Redundancy.........................................................................................................................225
5.4.17 PROFINET...........................................................................................................................225
5.4.18 EtherNet/IP...........................................................................................................................227
5.4.19 PLUG...................................................................................................................................228
5.4.19.1 Configuration........................................................................................................................228
5.4.19.2 License.................................................................................................................................232
5.4.20 Ping......................................................................................................................................234
5.4.21 PoE......................................................................................................................................235
5.4.21.1 General................................................................................................................................235
5.4.21.2 Port.......................................................................................................................................238
5.4.22 Port Diagnostics...................................................................................................................240
5.4.22.1 Cable Tester.........................................................................................................................240
5.4.22.2 SFP diagnostics...................................................................................................................242
5.4.23 Configuration Backup...........................................................................................................243
5.5 The "Layer 2" menu.............................................................................................................245
5.5.1 Configuration........................................................................................................................245
5.5.2 QoS......................................................................................................................................249
5.5.2.1 CoS queue mapping............................................................................................................249
5.5.2.2 DSCP Mapping....................................................................................................................251
5.5.2.3 QoS Trust.............................................................................................................................252
5.5.3 Rate Control.........................................................................................................................254
5.5.4 VLAN....................................................................................................................................256
5.5.4.1 General................................................................................................................................256
5.5.4.2 GVRP...................................................................................................................................259
5.5.4.3 Port-based VLAN.................................................................................................................261
5.5.4.4 Protocol-based VLAN group................................................................................................263
5.5.4.5 Protocol-based VLAN port...................................................................................................264
5.5.4.6 IPv4 subnet-based VLAN.....................................................................................................266
5.5.4.7 IPv6 prefix-based VLAN.......................................................................................................267
5.5.5 Private VLAN........................................................................................................................269
5.5.5.1 General................................................................................................................................269
5.5.5.2 IP Interface Mapping............................................................................................................270
5.5.6 Provider bridge.....................................................................................................................272
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5.5.6.1 Tunnel ports.........................................................................................................................272
5.5.7 Mirroring...............................................................................................................................274
5.5.7.1 General................................................................................................................................274
5.5.7.2 Port.......................................................................................................................................279
5.5.7.3 VLAN....................................................................................................................................280
5.5.7.4 MAC Flow.............................................................................................................................281
5.5.7.5 IP Flow.................................................................................................................................282
5.5.8 Dynamic MAC Aging............................................................................................................283
5.5.9 Ring redundancy..................................................................................................................284
5.5.9.1 Ring......................................................................................................................................284
5.5.9.2 Standby................................................................................................................................287
5.5.9.3 Link Check...........................................................................................................................290
5.5.10 Spanning tree.......................................................................................................................292
5.5.10.1 General................................................................................................................................292
5.5.10.2 CIST General.......................................................................................................................293
5.5.10.3 CIST Port.............................................................................................................................295
5.5.10.4 MST General........................................................................................................................300
5.5.10.5 MST Port..............................................................................................................................301
5.5.10.6 Enhanced Passive Listening Compatibility..........................................................................303
5.5.11 Loop Detection.....................................................................................................................304
5.5.12 Link aggregation...................................................................................................................307
5.5.13 DCP forwarding....................................................................................................................310
5.5.14 LLDP....................................................................................................................................312
5.5.15 Fiber Monitoring Protocol.....................................................................................................313
5.5.16 Unicast.................................................................................................................................315
5.5.16.1 Filtering................................................................................................................................315
5.5.16.2 Locked Ports........................................................................................................................317
5.5.16.3 Learning...............................................................................................................................319
5.5.16.4 Blocking................................................................................................................................320
5.5.17 Multicast...............................................................................................................................321
5.5.17.1 Groups.................................................................................................................................321
5.5.17.2 IGMP snooping....................................................................................................................324
5.5.17.3 GMRP..................................................................................................................................325
5.5.17.4 Multicast blocking.................................................................................................................327
5.5.17.5 MLD (IPv6)...........................................................................................................................328
5.5.18 Broadcast.............................................................................................................................330
5.5.19 PTP......................................................................................................................................332
5.5.19.1 General................................................................................................................................332
5.5.19.2 TC General...........................................................................................................................333
5.5.19.3 TC Port.................................................................................................................................334
5.5.20 RMON..................................................................................................................................335
5.5.20.1 Statistics...............................................................................................................................335
5.5.20.2 History..................................................................................................................................337
5.6 The "Layer 3 (IPv4)" menu...................................................................................................339
5.6.1 Configuration........................................................................................................................339
5.6.2 Subnets................................................................................................................................340
5.6.2.1 Overview..............................................................................................................................340
5.6.2.2 Configuration........................................................................................................................343
5.6.3 NAT......................................................................................................................................345
5.6.3.1 NAT......................................................................................................................................345
5.6.3.2 Static....................................................................................................................................347
5.6.3.3 Pool......................................................................................................................................348
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5.6.3.4 NAPT....................................................................................................................................349
5.6.4 Static Routes........................................................................................................................351
5.6.5 Route Maps..........................................................................................................................353
5.6.5.1 General................................................................................................................................353
5.6.5.2 Interface & Value Match.......................................................................................................354
5.6.5.3 Destination Match................................................................................................................356
5.6.5.4 Next Hop Match..................................................................................................................357
5.6.5.5 Create..................................................................................................................................358
5.6.6 DHCP Relay Agent..............................................................................................................359
5.6.6.1 General................................................................................................................................359
5.6.6.2 Option...................................................................................................................................361
5.6.7 VRRP...................................................................................................................................364
5.6.7.1 Router..................................................................................................................................364
5.6.7.2 Configuration........................................................................................................................367
5.6.7.3 Address overview.................................................................................................................369
5.6.7.4 Address Configuration..........................................................................................................369
5.6.7.5 Interface Tracking................................................................................................................370
5.6.8 VRRPv3...............................................................................................................................372
5.6.8.1 Router..................................................................................................................................372
5.6.8.2 Configuration........................................................................................................................375
5.6.8.3 Addresses Overview............................................................................................................377
5.6.8.4 Addresses Configuration......................................................................................................377
5.6.8.5 Interface Tracking................................................................................................................378
5.6.9 OSPFv2................................................................................................................................380
5.6.9.1 Configuration........................................................................................................................380
5.6.9.2 Areas....................................................................................................................................382
5.6.9.3 Area Range..........................................................................................................................383
5.6.9.4 Interfaces.............................................................................................................................385
5.6.9.5 Interface Authentication.......................................................................................................387
5.6.9.6 Virtual Links..........................................................................................................................388
5.6.9.7 Virtual Link Authentication....................................................................................................391
5.6.10 RIPv2...................................................................................................................................392
5.6.10.1 Configuration........................................................................................................................392
5.6.10.2 Interfaces.............................................................................................................................393
5.6.11 IGMP....................................................................................................................................395
5.6.12 PIM.......................................................................................................................................397
5.6.12.1 PIM.......................................................................................................................................397
5.6.12.2 Interface...............................................................................................................................397
5.6.12.3 RP Static..............................................................................................................................398
5.6.12.4 RP Candidate.......................................................................................................................400
5.6.13 MSDP...................................................................................................................................401
5.6.13.1 MSDP...................................................................................................................................401
5.6.13.2 Peer......................................................................................................................................403
5.7 The "Layer 3 (IPv6)" menu...................................................................................................404
5.7.1 Configuration........................................................................................................................404
5.7.2 Subnets................................................................................................................................406
5.7.3 DHCPv6 client......................................................................................................................408
5.7.3.1 DHCPv6 client......................................................................................................................408
5.7.3.2 DHCPv6 PD Sub Client........................................................................................................409
5.7.4 Static Routes........................................................................................................................411
5.7.5 Route maps..........................................................................................................................412
5.7.5.1 General................................................................................................................................412
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5.7.5.2 Interface & Value Match.......................................................................................................413
5.7.5.3 Destination Match...............................................................................................................416
5.7.5.4 Next-Hop filtern....................................................................................................................416
5.7.5.5 Einstellen..............................................................................................................................417
5.7.6 DHCPv4 Relay Agent...........................................................................................................419
5.7.6.1 Interfaces.............................................................................................................................419
5.7.6.2 Server Addresses.................................................................................................................420
5.7.6.3 Outgoing Interfaces..............................................................................................................421
5.7.7 VRRPv3...............................................................................................................................422
5.7.7.1 Routers.................................................................................................................................422
5.7.7.2 Configuration........................................................................................................................425
5.7.7.3 Addresses Overview............................................................................................................427
5.7.7.4 Addresses Configuration......................................................................................................428
5.7.7.5 Interface Tracking................................................................................................................429
5.7.8 OSPFv3................................................................................................................................430
5.7.8.1 Configuration........................................................................................................................430
5.7.8.2 Areas....................................................................................................................................432
5.7.8.3 Area......................................................................................................................................434
5.7.8.4 Interfaces.............................................................................................................................435
5.7.8.5 Virtual Links..........................................................................................................................437
5.7.9 RIPng...................................................................................................................................439
5.7.9.1 RIPng Configuration.............................................................................................................439
5.7.9.2 RIPng interfaces...................................................................................................................440
5.8 The "Security" menu............................................................................................................441
5.8.1 User management................................................................................................................441
5.8.2 Users....................................................................................................................................444
5.8.2.1 Local Users..........................................................................................................................444
5.8.2.2 Roles....................................................................................................................................447
5.8.2.3 Groups.................................................................................................................................449
5.8.3 Passwords............................................................................................................................451
5.8.3.1 Passwords............................................................................................................................451
5.8.3.2 Options.................................................................................................................................453
5.8.4 AAA......................................................................................................................................453
5.8.4.1 General................................................................................................................................453
5.8.4.2 RADIUS Client.....................................................................................................................454
5.8.4.3 802.1x Authenticator............................................................................................................458
5.8.5 MAC ACL.............................................................................................................................463
5.8.5.1 Rules Configuration..............................................................................................................463
5.8.5.2 Ingress Rules.......................................................................................................................465
5.8.5.3 Egress Rules........................................................................................................................467
5.8.6 IP ACL..................................................................................................................................469
5.8.6.1 Rules Configuration..............................................................................................................469
5.8.6.2 Protocol Configuration..........................................................................................................470
5.8.6.3 Ingress Rules.......................................................................................................................472
5.8.6.4 Egress Rules........................................................................................................................475
5.8.7 Management ACL................................................................................................................477
6 Troubleshooting/FAQ...............................................................................................................................481
6.1 Firmware update - via WBM.................................................................................................481
6.2 Firmware update via WBM or CLI not possible....................................................................481
6.3 Message: SINEMA configuration not yet accepted..............................................................482
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A Appendix A...............................................................................................................................................485
A.1 Supported RFCs..................................................................................................................485
Index.........................................................................................................................................................487
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Introduction

1.1 Information on this configuration manual

Validity of the configuration manual
This Configuration Manual covers the following products:
● SCALANCE XR-500
– SCALANCE XR524-8C
– SCALANCE XR526-8C
– SCALANCE XR528-6M
– SCALANCE XR552-12M
The devices are available with or without routing functions. The routing function can either be integrated in the devices or made available with a KEY-PLUG.
● SCALANCE XM-400
– SCALANCE XM408-4C
– SCALANCE XM408-8C
1
– SCALANCE XM416-4C
The devices are available with or without routing functions. The routing function can either be integrated in the devices or made available with a KEY-PLUG.
This Configuration Manual applies to the following software version:
● SCALANCE XR-500 firmware as of version 6.1
● SCALANCE XM-400 firmware as of version 6.1
Purpose of the Configuration Manual
This Configuration Manual is intended to provide you with the information you require to install, commission and operate IE switches. It provides you with the information you require to configure the IE switches.
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Introduction
1.1 Information on this configuration manual
Orientation in the documentation
Apart from this configuration manual, the products also have the following documentation:
● Configuration Manual:
– SCALANCE XM-400/XR-500 Command Line Interface (CLI)
This document contains the CLI commands that are supported by the IE switches SCALANCE XM-400 and SCALANCE XR-500.
● Operating instructions:
– SCALANCE XR-500
– MM900 media modules for SCALANCE XR-500M
– Fan unit FAN597-1 for SCALANCE XR-500M
– Power supply PS598-1 for SCALANCE XR-500M
– SCALANCE XM-400
– Extender for SCALANCE XM-400
– Pluggable transceiver SFP/SFP+/SCP/STP
Terms used
– PoE power supply SCALANCE PS9230 PoE / SCALANCE PS924 PoE
These documents contain information on installing and connecting up and approvals for the products.
The following documentation is also available from SIMATIC NET on the topic of Industrial Ethernet:
● System manual "Industrial Ethernet / PROFINET"
● System manual "Industrial Ethernet / PROFINET - Passive network components"
All these documents are available on the SCALANCE X DVD.
The designation . . . stands for . . . IE switch Industrial Ethernet switch
IPv4 address IPv4 address IPv6 address IPv6 address IP address IPv4/IPv6 address IPv4 interface Interface that supports IPv4. IPv6 interface Interface that supports IPv6. The interface can have more than one IPv6
address The IPv6 addresses have different ranges (scope), e.g. link local
IP interface Interface that supports both IPv4 and IPv6. As default the IPv4 support
is already activated. The IPv6 support needs to be activated extra.
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What's new as of version 6.1?
Below, you will find an overview of the most important function expansions:
● Information in the configuration limits
● RCDP
● DHCP
– Assignment of port to IP address
● Firmware on PLUG
● Configuration Backup
● IPv6 prefix-based VLAN
● Q-in-Q VLAN tunnel
● Link Check
● Loopback functionality
● PIM
– "Bidirectional multicast" functionality
Introduction
1.1 Information on this configuration manual
● MSDP
Note
Default user "user" set in the factory
As of firmware version 6.0 the default user set in the factory "user" is no longer available when the product ships.
If you update a device to the firmware V6.0 the default user set in the factory "user" is initially still available. If you reset the device to the factory settings ("Restore Factory Defaults and Restart") the default user set in the factory "user" is deleted.
You can create new users with the role "user".
SIMATIC NET glossary
Explanations of many of the specialist terms used in this documentation can be found in the SIMATIC NET glossary.
You will find the SIMATIC NET glossary here:
● SIMATIC NET Manual Collection or product DVD The DVD ships with certain SIMATIC NET products.
● On the Internet under the following address: 50305045 (http://support.automation.siemens.com/WW/view/en/50305045)
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Introduction
1.1 Information on this configuration manual
Security information
Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens’ products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action (e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be considered. For more information about industrial security, visit http://www.siemens.com/ industrialsecurity.
To stay informed about product updates as they occur, sign up for a product-specific newsletter. For more information, visit http://support.automation.siemens.com.
License conditions
Note Open source software
Trademarks
Firmware
Read the license conditions for open source software carefully before using the product.
You will find license conditions in the following documents on the supplied data medium:
● DOC_OSS-SCALANCE-X_74.pdf
● DC_LicenseSummaryScalanceXM400_76.pdf
● DC_LicenseSummaryScalanceXR500_76.pdf
You will find these documents on the product DVD in the following directory: /Open Source Information
The following and possibly other names not identified by the registered trademark sign ® are registered trademarks of Siemens AG:
SIMATIC NET, SCALANCE, C-PLUG, OLM
The firmware is signed and encrypted. This ensures that only firmware created by Siemens can be downloaded to the device.
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Description

2.1 Product characteristics

Properties of the IE switches
● The Ethernet interfaces support the following modes:
– 10 Mbps and 100 Mbps both in full and half duplex
– 1000 Mbps full duplex
– Autocrossing
– Autopolarity
● Redundancy protocols Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP) and Spanning Tree Protocol (STP) This means part of a network can be connected redundantly to a higher-level company network. The reconfiguration time of the network is in the seconds range and therefore takes longer than the ring redundancy method.
● Virtual networks (VLAN) To structure Industrial Ethernet networks with a fast growing number of nodes, a physical network can be divided into several virtual subnets. Port-based, protocol-based and subnet­based VLANs are available.
2
Layer 3 functions
● Load limitation when using multicast protocols, for example video transmission By learning the multicast sources and destinations (IGMP snooping, IGMP querier), the IE switches can filter multicast data traffic and limit the load in the network. Multicast and broadcast data traffic can be limited.
● Time-of-day synchronization Diagnostics messages (log table entries, e-mails) are given a time stamp. The local time is uniform throughout the network thanks to synchronization with a SICLOCK time transmitter or SNTP/NTP/PTP server and therefore makes the identification of diagnostics messages of several devices easier.
● Link aggregation (IEEE 802.1AX) for bundling ports
● Quality of Service for classification of the network traffic is according to COS (Class of Service - IEEE 802.11Q) and DSCP (Differentiated Services Code Point - RFC 2474)
The following functions are only available on devices with routing functions:
● Static routing
● OSPF / OSPFv3
● VRRP / VRRPv3
● RIP / RIPng
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Description
2.1 Product characteristics
● IGMP
● PIM
● MSDP
There are devices that natively support all routing functions. You will find the order numbers in the operating instructions of the devices.
On the devices that only support layer 2, you can enable the routing functions with a KEY­PLUG.
Naming interfaces
Interface names with SCALANCE XM-400
● Interfaces of the basic device The interfaces of the basic device SCALANCE XM-400 are called module 1.
● Interfaces of extenders The port extenders are called module 2 and module 3 starting from the basic device. The number of port extenders depends on the number of ports of the basic device. The extender function is called module 0.
Combo ports
Interface names with SCALANCE XR-500
● Permanently integrated Interfaces The interfaces permanently installed in the SCALANCE XR-500 are identified with module
0.
● Interfaces of modules The slots for modules are called module 1 followed by numbers. The numbering range depends on the hardware configuration. The numbering is fixed and does not depend on the number of modules being used. Each module has 4 ports numbered 1 to 4.
Combo port is the name for two communication ports. A combo port has the two following plug­in options:
● a fixed RJ-45 port
● an SFP transceiver slot that can be equipped individually
Of these two ports, only one can ever be active.
You can set the active port on the WBM page "System > Ports > Configuration"with the CLI command media-type.
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2.2 Requirements for installation and operation

Requirements for installation and operation of the IE switches
A PG/PC with a network connection must be available in order to configure the IE switches. If no DHCP server is available, a PG/PC on which the Primary Setup Tool (PST) is installed is necessary for the initial assignment of an IP address to the IE switches. For the other configuration settings, a PG/PC with Telnet or an Internet browser is necessary.
Serial interface The IE switches have a serial interface. An IP address is unnecessary to be able to access
the device via the serial interface. A serial cable ships with the products.
Set the following parameters for the connection:
● Bits per second: 115200
● Data bits: 8
● Parity: None
● Stop bits: 1
Description

2.3 C-PLUG / KEY-PLUG

● Flow control: None
2.3 C-PLUG / KEY-PLUG
Configuration information on the C-PLUG / KEY-PLUG
The C-PLUG / KEY-PLUG is used to transfer the configuration of the old device to the new device when a device is replaced.
NOTICE
Do not remove or insert a C-PLUG / KEY-PLUG during operation!
A C-PLUG / KEY-PLUG may only be removed or inserted when the device is turned off. The device regularly checks whether or not a KEY-PLUG is present. If it is detected that the KEY-PLUG was removed, there is a restart. If a valid KEY-PLUG was inserted in the device, the device changes to a defined error state following the restart.
When the new device starts up with the C-PLUG / KEY-PLUG, it then continues automatically with exactly the same configuration as the old device. One exception to this can be the IP configuration if it is set over DHCP and the DHCP server has not been reconfigured accordingly.
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Description

2.4 Power over Ethernet (PoE)

A reconfiguration is necessary if you use functions based on MAC addresses.
Note
In terms of the C-PLUG / KEY-PLUG, the SCALANCE devices work in two modes:
● Without C-PLUG / KEY-PLUG The device stores the configuration in internal memory. This mode is active when no C­PLUG / KEY-PLUG is inserted.
● With C-PLUG / KEY-PLUG The configuration stored on the C-PLUG / KEY-PLUG is displayed over the user interfaces. If changes are made to the configuration, the device stores the configuration directly on the C-PLUG / KEY-PLUG and in the internal memory. This mode is active as soon as a C­PLUG / KEY-PLUG is inserted. When the device is started with a C-PLUG / KEY-PLUG inserted, the device starts up with the configuration data on the C-PLUG / KEY-PLUG.
Note Incompatibility with previous versions with C-PLUG / KEY-PLUG inserted
During the installation of a previous version of the firmware, the configuration data can be lost. In this case, the device starts up with the factory settings after the firmware has been installed. In this situation, if a C-PLUG / KEY-PLUG is inserted in the device, following the restart, this has the status "Not Accepted" since the C-PLUG / KEY-PLUG still has the configuration data of the previous more up-to-date firmware. This allows you to return to the previous, more up­to-date firmware without any loss of configuration data. If the original configuration on the C­PLUG / KEY-PLUG is no longer required, the C-PLUG / KEY-PLUG can be deleted or rewritten manually.
License information on the KEY-PLUG In addition to the configuration, the KEY-PLUG also contains a license that allows the use of layer 3 functions.
2.4 Power over Ethernet (PoE)
General
"Power over Ethernet" (PoE) is a power supply technique for network components according to IEEE 802.3af or IEEE 802.3at. The power is supplied over the Ethernet cables that connect the individual network components together. This makes an additional power cable unnecessary. PoE can be used with all PoE-compliant network components that have a maximum power consumption of max. 25.50 W.
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Cable used for the power supply
● Alternative A (redundant wires)
In Fast Ethernet, the wire pairs 1, 2 and 3, 6 are used to transfer data. Pairs 4, 5 and 7, 8 are then used to supply power. If there are only four wires available, the voltage is modulated onto the wires 1, 2 and 3, 6 (see variant 2). This alternative is suitable for a data transmission rate of 10/100 Mbps. This type of power supply is not suitable for 1 Gbps since with gigabit all eight wires are used for data transfer.
● Alternative B (phantom power)
With phantom power, the power is supplied over the pairs that are used for data transfer, in other words, all eight (1 Gbps) or four (10/100 Mbps) wires are used both for the data transfer and the power supply.
A PoE-compliant end device must support both alternative A and alternative B over redundant wires. A switch with PoE capability can supply the end device either using
● alternative A or
● Alternative B or
● alternative A and alternative B.
Description
2.4 Power over Ethernet (PoE)
Endspan
Midspan
Note
The SCALANCE PE408PoE extender supports alternative B.
With endspan, the power is supplied via a switch that can reach a device over an Ethernet cable. The switch must be capable of PoE, for example a SCALANCE X108PoE, SCALANCE X308-2M PoE, all SCALANCE XM400 switches with PE408PoE, SCALANCE XR552‑12M.
Midspan is used when the switch is not PoE-compliant. The power is supplied by an additional device between the switch and end device. In this case, only data rates of 10/100 Mbps can be achieved because the power is supplied on redundant wires.
A Siemens power insert can also be used as the interface for the power input. Since a power insert supports a power supply of 24 VDC, it does not conform with IEEE 802.3af or IEEE
802.3at. The following restrictions relating to the use of power inserts should be noted:
WARNING
Operate the power insert only when the following conditions apply:
● with extra low voltages SELV, PELV complying with IEC 60364-4-41
● in USA/CAN with power supplies complying with NEC class 2
● in USA/CAN, the cabling must meet the requirements of NEC/CEC
● Current load maximum 0.5 A
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Description
2.4 Power over Ethernet (PoE)
Cable lengths
Table 2-1 Permitted cable lengths (copper cable - Fast Ethernet)
Cable type Accessory (plug, outlet, TP cord) Permitted cable length IE TP torsion cable with IE FC Outlet RJ-45
IE FC TP Marine Cable IE FC TP Trailing Cable IE FC TP Flexible Cable
IE FC TP standard cable with IE FC Outlet RJ-45
Table 2-2 Permitted cable lengths (copper cable - gigabit Ethernet)
Cable type Accessory (plug, outlet, TP cord) Permitted cable length IE FC standard cable, 4×2, 24
AWG IE FC flexible cable, 4×2, 24 AWG
IE FC standard cable, 4×2, 22 AWG
IE FC flexible cable, 4×2, 22 AWG
0 to 45 m
+ 10 m TP cord with IE FC RJ-45 Plug 180 0 to 55 m with IE FC Outlet RJ-45
+ 10 m TP cord with IE FC RJ-45 Plug 180 0 to 85 m
+ 10 m TP cord with IE FC RJ-45 Plug 180 0 to 100 m
with IE FC RJ-45 Plug 180, 4x2
with IE FC Outlet RJ-45 + 10 m TP cord
with IE FC Outlet RJ-45 + 10 m TP cord
+ 10 m TP cord
0 to 75 m + 10 m TP cord
0 to 90 m + 10 m TP cord
0 to 90 m
0 to 60 m + 10 m TP cord
0 to 90 m + 10 m TP cord
Table 2-3 Fitting connectors
PIN IE FC outlet RJ-45 IE FC RJ-45 modular out‐
let
1 Yellow Green/white D1+ Tx+ 2 Orange Green D1- Rx+ 3 White Orange/white D2+ Tx­6 Blue Orange D2- Rx­4 - Blue D3- ­5 - Blue/white D3+ ­7 - Brown/white D4- ­8 - Brown D4+ -
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IP addresses

3.1 IPv4 / IPv6

What are the essential differences?
IPv4 IPv6 IP configuration
Available IP addresses 32-bit: 4, 29 * 109 address‐es128-bit: 3, 4 * 1038 addresses
● DHCP server
● Manual
● Stateless Address Autoconfiguration (SLAAC): Stateless autoconfiguration using NDP (Neighbor Discovery Protocol)
– Creates a link local address for every interface that
does not require a router on the link.
– Checks the uniqueness of the address on the link that
requires no router on the link.
– Specifies whether the global addresses are obtained
via a status-free mechanism, a mechanism with status or via both mechanisms. (Requires a router on the link.)
● Manual
● DHCPv6 (status dependent)
3
Address format Decimal: 192.168.1.1
with port: 192.168.1.1:20 Loopback 127.0.0.1 ::1 IP addresses of the interface 4 IP addresses Multiple IP addresses
Header
Fragmentation Host and router Only endpoint of the communication Quality of service Type of Service (ToS) for
Types of frame Broadcast, multicast, uni‐
● Checksum
● Variable length
● Fragmentation in the header
● No security
prioritization
cast
Hexadecimal: 2a00:ad80::0123 with port: [2a00:ad80::0123]:20
● LLA: A link local address (formed automatically) fe80::/128 per interface
● ULA: Several unique local unicast addresses per interface
● GUA: Several global unicast addresses per interface
● Checking at a higher layer
● Fixed size
● Fragmentation in the extension header
The prioritization is specified in the header field "Traffic Class".
Multicast, unicast, anycast
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IP addresses
3.1 IPv4 / IPv6
IPv4 IPv6 Identification of DHCP clients/
server
DHCP via UDP with broadcast via UDP with unicast
Resolution of IP addresses in hardware addresses
Client ID: MAC address
ARP (Address Resolution Protocol)
DUID + IAID(s) = exactly one interface of the host DUID = DHCP unique identifier Identifies server and clients uniquely and should not change,
not even when replacing network components! IAID = Identity Association Identifier At least one per interface is generated by the client and re‐
mains unchanged when the DHCP client restarts Three methods of obtaining the DUID
● DUID-LLT
● DUID-EN
● DUID-LL
RFC 3315, RFC 3363 Stateful DHCPv6 Status-dependent configuration in which the IPv6 address and
the configuration settings are transferred. Four DHVPv6 messages are exchanged between client and
server:
1. SOLICIT: Sent by the DHCPv6 client to localize DHCPv6 servers.
2. ADVERTISE The available DHCPv6 servers reply to this.
3. REQUEST The DHCPv6 client requests an IPv6 address and the configuration settings from the DHCPv6 server.
4. REPLY The DHCPv6 server sends the IPv6 address and the configuration settings.
If the client and server support the function "Rapid commit" the procedure is shortened to two DHCPv6 messages SOLICIT and REPLY .
Stateless DHCPv6 In stateless DHCPv6, only the configuration settings are trans‐
ferred. Prefix delegation The DHCPv6 server delegates the distribution of IPv6 prefixes
to the DHCPv6 client. The DHCPv6 client is also known as PD router.
NDP (Neighbor Discovery Protocol)
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3.2 IPv4 address

3.2.1 Structure of an IPv4 address

Address classes
IP addresses

3.2 IPv4 address

IP address range Max. number of networks Max. number of hosts/net‐
work
1.x.x.x through 126.x.x.x 126 16777214 A /8
128.0.x.x through 191.255.x.x 16383 65534 B /16
192.0.0.x through 223.255.255.x 2097151 254 C /24
224.0.0.0 - 239.255.255.255 Multicast applications D
240.0.0.0 - 255.255.255.255 Reserved for future applications E
Class CIDR
An IP address consists of 4 bytes. Each byte is represented in decimal, with a dot separating it from the previous one. This results in the following structure, where XXX stands for a number between 0 and 255:
XXX.XXX.XXX.XXX
The IP address is made up of two parts, the network ID and the host ID. This allows different subnets to be created. Depending on the bytes of the IP address used as the network ID and those used for the host ID, the IP address can be assigned to a specific address class.
Subnet mask
The bits of the host ID can be used to create subnets. The leading bits represent the address of the subnet and the remaining bits the address of the host in the subnet.
A subnet is defined by the subnet mask. The structure of the subnet mask corresponds to that of an IP address. If a "1" is used at a bit position in the subnet mask, the bit belongs to the corresponding position in the IP address of the subnet address, otherwise to the address of the computer.
Example of a class B network:
The standard subnet address for class B networks is 255.255.0.0; in other words, the last two bytes are available for defining a subnet. If 16 subnets must be defined, the third byte of the subnet address must be set to 11110000 (binary notation). In this case, this results in the subnet mask 255.255.240.0.
To find out whether two IP addresses belong to the same subnet, the two IP addresses and the subnet mask are ANDed bit by bit. If both logic operations have the save result, both IP addresses belong to the same subnet, for example, 141.120.246.210 and 141.120.252.108.
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IP addresses
3.2 IPv4 address
Outside the local area network, the distinction between network ID and host ID is of no significance, in this case packets are delivered based on the entire IP address.
Note
In the bit representation of the subnet mask, the "ones" must be set left-justified; in other words, there must be no "zeros" between the "ones".

3.2.2 Initial assignment of an IPv4 address

Configuration options
An initial IP address for an IE switch cannot be assigned using Web Based Management (WBM) because this configuration tool can only be used if an IP address already exists.
The following options are available to assign an IP address to an unconfigured device:
● DHCP (default)
● Primary Setup Tool (PST)
– To be able to assign an IP address to the IE switch with the PST, it must be possible to
reach the device via Ethernet.
– You will find the PST on the Internet pages of Siemens Industry Online Support under
the entry ID 19440762 (
19440762).
– For further information about assigning the IP address with the PST, refer to the
documentation "Primary Setup Tool (PST)".
● STEP7 In STEP 7, you can configure the topology, the device name and the IP address. If you connect an unconfigured IE switch to the controller, the controller assigns the configured device name and the IP address to the IE switch automatically.
– STEP 7 as of V5.5 SP4
For further information on the assignment of the IP address using STEP 7 refer to the documentation "Configuring Hardware and Connections with STEP 7", in the section "Steps For Configuring a PROFINET IO System".
– STEP 7 Basic as of V12 SP1 or STEP 7 Professional as of V12 SP1
For further information on assigning the IP address using STEP 7 (as of V12 SP1), refer to the online help "Information system", section "Addressing PROFINET devices".
● CLI via the serial interface For further information on assigning the IP address using the CLI, refer to the documentation "SCALANCE XM-400/XR-500 Command Line Interface".
http://support.automation.siemens.com/WW/view/en/
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IP addresses
3.2 IPv4 address
● NCM PC
For further information on assigning the IP address using NCM PC, refer to the documentation "Commissioning PC stations - Manual and Quick Start", in the section "Creating a PROFINET IO system".
● RUGGEDCOM EXPLORER
With the RUGGEDCOM EXPLORER you can recognize devices in a network and make the following basic settings:
– IP Address
– Subnet Mask
– Default Gateway
– System Name
– Device Location
– System Contact
The RUGGEDCOM EXPLORER can run on every LAN-based MS Windows-PC. To be able to use the RUGGEDCOM EXPLORER, RCDP (RUGGEDCOM Discovery Protocol) must be enabled on the device. You will find more information on the RUGGEDCOM EXPLORER here:
– On the Internet pages of Siemens Industry Online Support (https://
support.industry.siemens.com/cs/ww/en/ps/15391/man)
– On the Internet pages of RUGGEDCOM products (http://w3.siemens.com/mcms/
industrial-communication/en/rugged-communication/produkte/software/Seiten/ explorer.aspx)
Note
When the product ships and following "Restore Factory Defaults and Restart", DHCP is enabled. If a DHCP server is available in the local area network, and this responds to the DHCP request of an IE switch, the IP address, subnet mask and gateway are assigned automatically when the device first starts up.

3.2.3 Address assignment with DHCP

Properties of DHCP
DHCP (Dynamic Host Configuration Protocol) is a method for automatic assignment of IP addresses. It has the following characteristics:
● DHCP can be used both when starting up a device and during ongoing operation.
● The assigned IP address remains valid only for a limited time known as the lease time.
When half the period of validity has elapsed. the DHCP client can extend the period of the assigned IPv4 address. When the entire time has elapsed, the DHCP client needs to request a new IPv4 address.
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IP addresses

3.3 IPv6 addresses

● There is normally no fixed address assignment; in other words, when a client requests an IP address again, it normally receives a different address from the previous address. It is possible to configure the DHCP server so that the DHCP client always receives the same fixed address in response to its request. The parameter with which the DHCP client is identified for the fixed address assignment is set on the DHCP client. The address can be assigned via the MAC address, the DHCP client ID, PROFINET device name or the device name. You configure the parameter in "System > DHCP Client (Page 173)".
● The following DHCP options are supported:
– DHCP option 3: Assignment of a router address
– DHCP option 6: Assignment of a DNS server address
– DHCP option 66: Assignment of a dynamic TFTP server name
– DHCP option 67: Assignment of a dynamic boot file name
– DHCP option 82: Assignment of IP addresses depending on the device index, switch
port, the VLAN ID or user-defined identification values of the DHCP relay agent.
Note
DHCP uses a mechanism with which the IP address is assigned for only a short time (lease time). If the device does not reach the DHCP server with a new request on expiry of the lease time, the assigned IP address, the subnet mask and the gateway continue to be used.
The device therefore remains accessible under the last assigned IP address even without a DHCP server. This is not the standard behavior of office devices but is necessary for problem-free operation of the plant.
3.3 IPv6 addresses

3.3.1 IPv6 terms

Network node
A network node is a device that is connected to one or more networks via one or more interfaces.
Router
A network node that forwards IPv6 packets.
Host
A network node that represents an end point for IPv6 communication relations.
Link
A link is, according to IPv6 terminology, a direct layer 3 connection within an IPv6 network.
Neighbor
Two network nodes are called neighbors when they are located on the same link.
IPv6 interface
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IP addresses
3.3 IPv6 addresses
Physical or logical interface on which IPv6 is activated.
Path MTU
Maximum permitted packet size on a path from a sender to a recipient.
Path MTU discovery
Mechanism for determining the maximum permitted packet size along the entire path from a sender to a recipient.
LLA
Link local address FE80::/10
As soon as IPv6 is activated on the interface, a link local address is formed automatically. Can only be reached by nodes located on the same link.
ULA
Unique Local Address
Defined in RFC 4193. Via this address, the IPv6 interface can be reached in the LAN.
GUA
Global Unicast Address Via this address, the IPv6 interface can be reached, e.g. via the Internet.
Interface ID
The interface ID is formed with the EUI-64 method or manually.
EUI-64
Extended Unique Identifier (RFC 4291); method for forming the interface ID. In Ethernet, the interface ID is formed from the MAC address of the interface. Divides the MAC address into the manufacturer-specific part (OUI) and the network-specific part (NIC) and inserts FFFE between the two parts.
Example:
MAC address = AA:BB:CC:DD:EE:FF
OUI = AA:BB:CC
NIC = DD:EE:FF
EUI-64 = OUI + FFFE + NIC = AA:BB:CC:FF:FE:DD:EE:FF
Scope
Defines the range of the IPv6 address.
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IP addresses
3.3 IPv6 addresses

3.3.2 Structure of an IPv6 address

IPv6 address format - notation
IPv6 addresses consist of 8 fields each with four-character hexadecimal numbers (128 bits in total). The fields are separated by a colon.
Example:
fd00:0000:0000:ffff:02d1:7d01:0000:8f21
Rules / simplifications:
● If one or more fields have the value 0, a shortened notation is possible. The address fd00:0000:0000:ffff:02d1:7d01:0000:8f21 can also be shortened and written as follows: fd00::ffff:02d1:7d01:0000:8f21 To ensure uniqueness, this shortened form can only be used once within the entire address.
● Leading zeros within a field can be omitted. The address fd00:0000:0000:ffff:02d1:7d01:0000:8f21 can also be shortened and written as follows: fd00::ffff:2d1:7d01:0000:8f21
● Decimal notation with periods The last 2 fields or 4 bytes can be written in the normal decimal notation with periods. Example: The IPv6 address fd00::ffff.125.1.0.1 is equivalent to fd00::ffff:7d01:1
Structure of the IPv6 address
The IPv6 protocol distinguishes three types of address: Unicast , anycast and multicast. The following section describes the structure of the global unicast addresses.
IPv6 prefix Suffix Global prefix: n bits Assigned address
range
The prefix for the link local address is always fe80:0000:0000:0000. The prefix is shortened and noted as follows: fe80::
IPv6 prefix
Specified in: RFC 4291
The IPv6 prefix represents the subnet identifier.
Subnet ID m bits Description of the location, also
subnet prefix or subnet
Interface ID 128 - n - m bits Unique assignment of the host in the net‐
work. The ID is generated from the MAC address.
Prefixes and IPv6 addresses are specified in the same way as with the CIDR notation (Classless Inter-Domain Routing) for IPv4.
Design
IPv6 address / prefix length
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Example
IPv6 address: 2001:0db8:1234::1111/48
Prefix: 2001:0db8:1234::/48
Interface ID: ::1111
Entry and appearance
The entry of IPv6 addresses is possible in the notations described above. IPv6 addresses are always shown in the hexadecimal notation.
IP addresses
3.3 IPv6 addresses
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IP addresses
3.3 IPv6 addresses
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