Cabletron Systems MicroMMAC 22ES, MicroMMAC-22T, MicroMMAC-24E, MicroMMAC-34E, MicroMMAC-42T Reference Manual

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MMAC

LOCAL MANAGEMENT

ROUTING ADDENDUM

Title Page

NOTICE

Cabletron Systems reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.

The hardware, firmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,

INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.



Copyright 1997 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America

Order Number: 9032262 June 1997

Cabletron Systems

All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.

and

MicroMMAC

are registered trademarks of Cabletron Systems, Inc.

MicroMMAC Local Management Routing Addendum i

Printed on Recycled Paper

Notice

ii MicroMMAC Local Management Routing Addendum

CONTENTS

1.0 Introduction..................................................................................... 1

1.1 Local Management Overview......................................................... 1

2.0 M

2.1 WAN Protocols...............................................................................2

2.2 Data Compression.......................................................................... 2

2.3 Bridging and Routing...................................................................... 3

2.4 Protocol Filtering............................................................................. 5

3.0 M

3.1 Local Management Organization.................................................... 7

3.2 Router Setup Screen...................................................................... 8

3.3 IP Router Setup Screen.................................................................. 9

3.4 The IP General Config Screen ..................................................... 10

3.5 IPX Router Setup Screen.............................................................20

3.6 The IPX General Configuration Screen........................................ 22

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MMAC Protocol Support....................................................... 2

2.3.1 MicroMMAC Bridging and Routing .................................... 4

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MMAC Local Management................................................... 7

3.2.1 The IP/IPX Screen Fields .................................................. 8

3.3.1 The IP Router Setup Screen Fields................................. 10

3.4.1 IP General Configuration Status Fields ........................... 11

3.4.2 IP General Configuration Fields....................................... 12

3.4.3 Selecting a Port for Configuration.................................... 13

3.4.4 Entering the IP Address and Subnet Mask...................... 13

3.4.5 Selecting the Frame Type for a Port................................ 14

3.4.6 Setting the Maximum Transmission Unit (MTU).............. 14

3.4.7 Enabling IP Routing Services on a Port........................... 15

3.4.8 Enabling IP Forwarding on a Port.................................... 15

3.4.9 Configuring the UDP Broadcast Redirector..................... 16

3.4.10 Enabling Proxy ARP on a Port......................................... 17

3.4.11 Configuring the Network Broadcast Type on a Port ........ 18

3.4.12 Enabling the RIP Routing Protocol on a Port................... 19

3.5.1 The IPX Router Setup Fields........................................... 21

3.6.1 IPX General Configuration Status Fields......................... 22

3.6.2 IPX General Configuration Fields .................................... 23

INDEX

MicroMMAC Local Management Routing Addendum iii

Contents

iv MicroMMAC Local Management Routing Addendum

1.0 INTRODUCTION

1†22†

W elcome to Cabletron Systems

Addendum.

The purpose of this document is to assist the user to configure

MicroMMAC Local Management Routing

the MicroMMac for routing. Use this document as a guide in Local
Management routing.

The MicroMMAC Kit (Part Number MicroE-W6RS-LIC) contains the
memory and firmware to upgrade the operating system of the
MicroMMAC. The MicroMMAC Kit contains the following items:

• 8 MB Local DRAM SIMM

• Memory Installation Sheet

• MicroMMAC Local Management Routing Addendum

• Release Notes for the IP/IPX routing Firmware (v. 2.00.04 or higher)

• Diskettes with Firmware version 2.00.04 or higher

• License Agreement

•

Read Me First

Be sure to read the
contained in the kit as well as this

Routing Addendum.
User’s Guide

notice

Memory Installation Sheet

MicroMMAC Local Management

Also refer to the

MicroMMAC Local Management

shipped with the MicroMMAC.

and the Release Notes

1.1 LOCAL MANAGEMENT OVERVIEW

Cabletron Systems Local Management is a management tool that allows a
network manager to perform the following tasks:

• Configure interconnected devices to form a network.

• Monitor the performance of the network.

• Control user access to the network and its components for the purpose

of security.

2

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MMAC PROTOCOL SUPPORT

The following sections discuss protocol support on the MicroMMAC
including WAN protocols, data compression, bridging and routing, and
protocol filtering.

2.1 WAN PROTOCOLS

The MicroMMAC, with a BRIM-W6 installed, supports the following
WAN protocols over the WAN port:

• Point-to-Point Compression Control Protocol (CCP) as defined by
RFC 1962

• Point-to-Point Protocol (LCP) as defined by RFC 1661

• Point-to-Point Protocol (BNCP) as defined by RFC 1638

• Point-to-Point Protocol (IPCP) as defined by RFC 1473

• Point-to-Point Protocol (IPXCP) as defined by RFC 1552

• Frame Relay as defined by RFC 1490

• Frame Relay Data Compression Protocol (DCP) as defined by FRF.9

PPP (Point-to-Point Protocol) is a data link layer industry standard WAN
protocol for transferring multi-protocol data traffic over point-to-point
connections. With this protocol, options such as security and network
protocols can be negotiated by the connected devices.

Frame Relay is a packet-switching data communications protocol that
statistically multiplexes many data transmissions over a single
transmission link.

2.2 DATA COMPRESSION

The STAC Electronics Stacker LZS Compression Protocol is supported
over PPP and Frame Relay providing up to 4:1 data compression. Data
compression is supported for each WAN interface for line speeds of up to
256 Kbps. To use data compression, compatible equipment (such as the
MicroMMAC) must be in use at both ends of the WAN link.

2 MicroMMAC Local Management Routing Addendum

2.3 BRIDGING AND ROUTING

Bridging and Routing

Bridging —

Bridging creates separate segments on a network. The
bridge examines a portion of each network frame called the header. This
header contains control information for the frame. The bridge compares
the destination address of the frame to a table of source addresses. If the
address indicates that the sending station and the destination station are
on the same side of the bridge, the frame is discarded. If the addresses do
not indicate that, then the bridge forwards the frame to its other
interface(s).

During this process, the bridge formulates a table that allows it to identify
which stations are connected to which LAN segment. The destination
addresses of received frames are compared to this address table and
decisions are made to discard or forward based on the outcome.
Transparent bridging allows locally connected devices to send frames to
all devices as if they are all on the same LAN.

Bridging allows frames to be sent to all destinations regardless of the
network protocols used. It also allows protocols that cannot be routed
(such as NETBIOS) to be forwarded, and optimizes internetwork capacity
by localizing traffic on LAN segments. A bridge extends the physical
reach of networks beyond the limits of each LAN segment. Filters are
used to increase network security in bridged networks.

Routing —

Routing provides a way to transfer user data from source to
destination over different LAN and WAN links using one or more
network protocol formats. Routing relies on routing address tables to
determine the best path for each packet. Routing tables can be seeded
(i.e., addresses for remote destinations are placed in the table along with
network address masks and a metric for path latency). Routing tables are
also built dynamically (i.e., the location of remote stations, hosts and
networks are updated from broadcast packet information). Routing helps
to increase network capacity by localizing traffic on LAN segments and
reducing the amount of broadcasts that would result from bridged traffic.
It also provides security by isolating traffic on se gmented LANs. Routing
extends the reach of networks beyond the limits of each LAN segment.

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2.3.1 MicroMMAC Bridging and Routing

The MicroMMAC can operate as a bridge, a router, or both. The
MicroMMAC operates as a router for network protocols that are
supported when routing is enabled and operates as a bridge when bridging
is enabled. When both bridging and routing are enabled, routing takes
precedence over bridging, i.e., the MicroMMA C uses the protocol address
information of the packet to route the packet to the correct destination.
Howe ver, if the protocol is not supported, the MicroMMAC operates as a
bridge and uses the MAC address information to send the packet.

Operation of the MicroMMAC is influenced by routing and bridging
controls and filters set during MicroMMAC configuration. General IP
routing, and routing or bridging from specific remote routers are controls
set during the configuration process.

IEEE 802.1d Bridging —

The MicroMMAC supports the IEEE 802.1d
standard for LAN to LAN bridging. Bridging is provided over PPP as
well as adjacent LAN ports. The bridging software uses transparent
bridging. When the MicroMMAC is configured as a bridge, the unit
bridges data packets to the destination, regardless of the network
protocols used.

The MicroMMAC uses the Spanning Tree Algorithm to provide bridging
redundancy while preventing data loops and duplicate data. This is a
self-learning bridge, i.e., the bridge builds and updates an address table
with each MAC source address and associated information when the
packets are received.

4 MicroMMAC Local Management Routing Addendum

Protocol Filtering

IP Routing —

IP routing support provides the ability to process

TCP/IP

frames at the network layer for routing. IP routing support includes the
Routing Information Protocol (RIP) that allows the exchange of routing
information on a TCP/IP network. The MicroMMAC receives and
broadcasts RIP messages to adjacent routers and workstations.

IPX Routing —

Internet Packet Exchange (IPX) routing support
provides the ability to process Novell proprietary frames at the network
layer for routing. IPX routing support includes both Routing Information
Protocol (RIP) and Service Advertising Protocol (SAP) that allows the
exchange of routing information on a Novell NetWare network. The SAP
provides routers and servers containing SAP agents with a means of
exchanging internetwork service information.

2.4 PROTOCOL FILTERING

Filtering enables efficient usage of network resources and provides
security for the network and hosts.

IP Internet Firewall

The MicroMMAC supports IP Internet Firewall filtering to prevent
unauthorized access to your system and network resources from the
Internet or a corporate Intranet. Security can be configured to permit or
deny IP traffic. The security is established by configuring IP access filters,
which are based on source IP address, source mask, destination IP
address, destination mask, protocol type, and application port identifiers
for both the Transmission Control Protocol (TCP) and User Datagram
Protocol (UDP). These IP access filters allow individual IP source and
destination pair filtering as well as IP address ranges and wild carding to
match any IP address. These Firewall filters can be defined to allow
inbound only, outbound only, or bi-directional IP communication up to
the UDP and TCP application port level. Firewall access filters can
establish a powerful IP security barrier.

The MicroMMAC supports the IP Access Control (from the ctip-mib)
Internet Firewall Filter.

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Bridge Filtering

Bridge filtering enables a network administrator to control the flow of
packets across the MicroMMAC. Bridge filtering can be used to “deny”
or “allow” packets based on a “matched pattern” using a specified
position and hexadecimal content within the packet. This enables
restricting or forwarding of messages based on address, protocol, or data
content. Common uses include preventing access to remote networks,
controlling unauthorized access to the local network, and limiting
unnecessary traffic.

The MicroMMAC supports the following Bridge Filters:

• dot1dStatic Filters (IETF RFC1493)

• Ethernet Special Filtering Database (from the ctbridge-mib)

3

6 MicroMMAC Local Management Routing Addendum

Local Management Organization

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MMAC LOCAL MANAGEMENT

A general working knowledge of basic network operations and an
understanding of management applications are helpful prior to using
Cabletron Systems Local Management.

The following sections cover Local Management for IP and IPX routing.
Refer to the

MicroMMAC Local Management User’s Guide

for additional

Local Management information.
To access the screens discussed in this addendum, navigate through the

MicroMMAC menu screens to the Router Setup screen and press
RETURN.

3.1 LOCAL MANAGEMENT ORGANIZATION

The following summarizes the organization of this section:

IP Router Setup Screen

for IP routing functions.

describes how to configure the MicroMMAC

IPX Router Setup Screen

describes how to configure the MicroMMAC

for IPX routing functions.
Figure 3-1 shows the relationships of the Local Management routing

screens.

IP General Config

IP IP RIP

Router Setup

IPX General Config

IPX

Figure 3-1 Hierarchy of Routing Screens

IPX SAP

IPX RIP

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3.2 ROUTER SETUP SCREEN

Figure 3-2 shows the Router Setup screen which enables you to display
either the IP Router Setup screen or the IPX Router Setup screen to
configure the MicroMMAC ports for IP or IPX routing.

MicroMMAC Local Management Version XX.XX.XX

IP
IPX

INITIALIZE

RETURN

2262_02

Figure 3-2 Router Setup Screen

3.2.1 The IP/IPX Screen Fields

The following list describes the Router Setup screen fields.

IP

Use this field to access the IP Router Setup screen to configure the
MicroMMAC for IP routing.

IPX

Use this field to access the IPX Router Setup screen to configure the
MicroMMAC for IPX routing.

8 MicroMMAC Local Management Routing Addendum

IP Router Setup Screen

3.3 IP ROUTER SETUP SCREEN

The IP Router Setup screen enables you to access the IP General Config
and IP RIP screens to configure the MicroMMAC for IP Routing and
enable RIP on the MicroMMAC.

Access the IP Router Setup screen, shown in Figure 3-3, by using the

IP

arrow keys to highlight the
pressing ENTER. The IP Router Setup screen displays.

field on the Router Setup screen and then

IP Router Setup

IP General Config
IP RIP

RETURN

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Figure 3-3 IP Router Setup Screen

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3.3.1 The IP Router Setup Screen Fields

The following list describes each of the Router Setup screen fields:

IP General Config

Use this field to access the IP General Config screen and configure the
MicroMMAC for IP routing.

IP RIP

Use this field to access the IP RIP screen and enable Routing Information
Protocol (RIP) routing on the MicroMMAC.

3.4 THE IP GENERAL CONFIG SCREEN

The IP General Config screen allows you to configure the MicroMMAC
for IP routing.

Access the IP General Config screen by using the arrow ke ys to highlight

IP General Config

the

option and then pressing ENTER. The IP General

Config screen shown in Figure 3-4 displays.

MicroMMAC Local Management

IP General Config

Router Name: IP
Version: XX.XX.XX

IP Routing: ENABLED
Redirector: FORWARD

Port: 1
MAC Address: 00-00-1D-22-46-B0
Oper Status: Enabled

Address: 134.141.17.177 Mask: 255.255.0.0 Address Type: Primary

Description: Ctron MicroMMAC

Status: Enabled
AdminStatusTime: 0 days 0 hours 39 min

Server: 0.0.0.0
UDP Port: 37

Network Bcast: Ones

System Level Setup

Port Level Setup

EnetPort

Interf. Type: ethernet-csmacd

Framing: Ethernet MTU: 1500

UpTime: 0 days 0 hours 39 min

37 of 999
UDP Type: time

IP Routing: ENABLED IP Forwarding: ENABLED Proxy ARP: DISABLED

+PORT- +REDIRECTOR-

Figure 3-4 IP General Config Screen

10 MicroMMAC Local Management Routing Addendum

SAVE RETURN

2262_04

The IP General Config Screen

3.4.1 IP General Configuration Status Fields

The following list describes each of the IP General Configuration status
fields. The status fields are for informational purposes only and cannot be
modified.

Router Name

Displays the type of routing used.

Status

Displays the status of IP Routing.

UpTime

Displays the amount of time elapsed since the last time the MicroMMAC
was rebooted.

Version

Displays the IP Routing version number used on the MicroMMAC.

AdminStatusTime

Displays the amount of time elapsed since an IP address was assigned to
the MicroMMAC.

IP Routing

Indicates if IP routing is enabled or disabled.

Server

Indicates server number selected.

UDP Port

Indicates the port number selected.

UDP T ype

Displays the UDP Service to which the selected UDP Port number
corresponds.

Description

Describes the selected port.

MAC Address

Displays the physical (MAC) address of the MicroMMAC.

MicroMMAC Local Management Routing Addendum 11

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Displays the type of interface used by the specified port.

Oper Status

Displays the operational status of the selected port.

3.4.2 IP General Configuration Fields

This section provides a general overview of the procedures required to
configure the MicroMMAC. The following list describes each of the IP
General Config screen fields.

+PORT-

Use this field to select the routing port you wish to configure.

+REDIRECTOR-

Use this field to step through a list of commonly used UDP port numbers.
UDP port numbers are associated with the relay agent functionality of the
router .

Framing

Use this field to select the format of the frame in which IP packets are
encapsulated for transmission.

MTU

Use this field to set the MTU (Maximum Transmission Unit).

Address

Use this field to assign an IP address to the port that you wish to
configure.

Mask

Use this field to set the Subnet Mask for the port that you wish to
configure.

Address T ype

Indicates Primary or Secondary address type.

Network Bcast

Indicates if network broadcast uses zeros or ones.

12 MicroMMAC Local Management Routing Addendum

The IP General Config Screen

IP Routing

Use this field to enable IP Routing Services.

IP Forwarding

Use this field to enable IP Forwarding.

Proxy ARP

Use this field to enable Proxy Address Resolution Protocol (ARP).

3.4.3 Selecting a Port for Configuration

Routing Services enables you to choose the ports that you want to
configure for IP routing. To select a router port to configure for IP routing,
complete the following steps:

1. Use the arrow keys to highlight the

PORT

field.

2. Enter the number of the port that you want to configure for IP routing

and press ENTER.

You can enter the port number, or you can use the +PORT-

NOTE

option at the bottom of the screen to scroll through the list of
the ports on your device. To use the +PORT- option, use the
arrow keys to highlight the + (to go forward), or the - (to go
backward), and then press ENTER to scroll through the
available ports in the direction you select. You can also use the
+ and - keys to scroll through the available ports.

If you enter an invalid port number, the error message “PORT NUMBER
IS OUT OF RANGE” displays. Repeat steps 1 and 2.

3.4.4 Entering the IP Address and Subnet Mask

All IP hosts must have an IP address for each network interface. These
addresses identify each network connection.

To enter the IP address for a router port, complete the following steps:

1. Use the arrow keys to highlight the

2. Enter the IP address (using DDN format) and press ENTER.

MicroMMAC Local Management Routing Addendum 13

ADDRESS field.

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To enter the Subnet Mask for a router port, complete the following steps:

1. Use the arrow keys to highlight the MASK field.

2. Enter the Subnet Mask (using DDN format) for the IP address that you
assigned.

3.4.5 Selecting the Frame Type for a Port

On each port, frame type specifies the format of the frame in which IP
packets are encapsulated for transmission. The frame type options
available for each router port are dependent on the type of media
supported by that router port.

To select the frame type for a port, complete the following steps:

1. Use the arrow keys to highlight the Framing field.

2. Use the ENTER key to toggle the entry to the correct frame type for
the port.

3. Use the arrow keys to highlight the SAVE command field at the
bottom of the screen and then press ENTER. The message “SAVED
OK” displays.

3.4.6 Setting the Maximum Transmission Unit (MTU)

The Maximum Transmission Unit specifies the maximum packet size for
all IP packets that are transmitted.

To select the MTU for a port, complete the following steps:

1. Use the arrow keys to highlight the MTU field under Port Level Setup.

2. Enter an MTU value for the media used.

3. Use the arrow keys to highlight the SAVE command field at the
bottom of the screen, then press ENTER. The message “SAVED OK”
displays.

14 MicroMMAC Local Management Routing Addendum

The IP General Config Screen

3.4.7 Enabling IP Routing Services on a Port

The ability to switch IP Routing Services on and off on a port-by-port
basis, provides great flexibility. On the same device, some ports can be
routing IP traffic while other ports are bridging it. If you are in transition
from a bridged network to a routed network, this flexibility enables you to
implement IP routing and test your routing configuration on a
port-by-port basis. If necessary, you can temporarily disable the IP
routing on any port without losing your configuration, or you can
temporarily switch from IP routing back to bridging.

To enable IP Routing Services on a router port, complete the following
steps:

1. Use the arrow keys to highlight the IP Routing field.

2. Use the ENTER key to toggle the entry to ENABLED.

3. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen, and then press ENTER. The message “SAVED
OK” displays.

3.4.8 Enabling IP Forwarding on a Port

By default, IP Forwarding is disabled on each router port. Your device
will not begin forwarding IP data packets on any router port until you
enable IP Forwarding on that port.

To enable IP Forwarding on a router port, complete the following steps:

1. Use the arrow keys to highlight the IP Forwarding field.

2. Use the ENTER key to toggle the entry to ENABLED.

3. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and then press ENTER. The message “SAVED
OK” displays.

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3.4.9 Configuring the UDP Broadcast Redirector

In order to locate a server that can provide a particular network service,
many IP hosts rely on the use of LAN broadcasts to send UDP service
requests. The UDP port number contained in the broadcast request packet
identifies the service being requested. Table 3-1 shows the port numbers
and their corresponding requested services.

Table 3-1 UDP Port Numbers

UDP Port # UDP Services

37 Time
42 Host Name Server
53 Domain Name Server
65 TACACS-Database Service
67 Bootstrap Protocol/Dynamic Host Control Protocol Server
68 Bootstrap Protocol/Dynamic Host Control Protocol Client
69 Trivial File Transfer
137 Netbios Name Server
138 Netbios Datagram Server
111 Sunrpc (NIS)

The UDP Broadcast Redirector enables you to configure any Routing
Services enabled device to forward the UDP packets that it receives as
LAN broadcasts, directly to the appropriate server. UDP service requests
that are sent as LAN broadcasts by clients of applications such as Host
Name, Domain Name, and Bootstrap servers, can be redirected to any
server on any network segment.

16 MicroMMAC Local Management Routing Addendum

The IP General Config Screen

To configure the UDP Broadcast Redirector, complete the following
steps:

1. Use the arrow keys to highlight the UDP Port field under System

Level Setup.

2. ENTER the UDP port number of the UDP service request packets that

you want to redirect (refer to Table 3-1) and press ENTER.

3. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and then press ENTER. The message “SAVED
OK” displays.

You can enter the UDP port number, or you can use the

NOTE

+REDIRECTOR- option at the bottom of the screen to scroll
through a list of commonly used UDP port numbers. To use the
+REDIRECTOR- option, use the arrow keys to highlight the +
(to go forward), or the - (to go backward), and then press the
ENTER key to scroll in the direction that you select.

The entry for the UDP Port option reflects the UDP port number that is
currently selected. The entry for the UDP Type names the UDP service to
which that port number corresponds.

3.4.10 Enabling Proxy ARP on a Port

By default, Proxy ARP is disabled on all ports, and IP Routing Services
responds only to ARP requests addressed to its own IP address.

In order for one IP host to communicate with another IP host, the target
host’s MAC address must be known. In order to learn this MAC address,
the IP host sends an ARP request packet as a LAN broadcast with the
destination IP address of the target IP host. All hosts receive this
broadcast and the one host whose address matches the target IP address
responds with its MAC-layer address. However, because each subnet
constitutes a separate broadcast domain and LAN broadcasts are not
forwarded across routers, ARP does not work beyond a host’s local
network or subnetwork. One of the primary purposes of a router is to
confine LAN broadcast traffic to each local network or subnetwork.

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A proxy ARP response is generated when the following occurs:

• Proxy ARP is enabled on a router port.

• An ARP request is received as a LAN broadcast (looking for the
MAC-layer address of an IP host on another network segment).

• An entry exists in the IP Forwarding Table for the destination host’s
network.

Enabling Proxy ARP on a router port allows IP hosts to dynamically
obtain the MAC-layer address of other IP hosts attached to different
networks or subnetworks by using broadcast ARP request packets. With
Proxy ARP enabled, IP hosts are not required to maintain knowledge of
specific subnetworks.

To enable Proxy ARP on a router port, complete the following steps:

1. Use the arrow keys to highlight the Proxy ARP field.

2. Use the ENTER key to toggle the entry to ENABLED.

3. Use the arrow keys to highlight the SAVE command field at the
bottom of the screen, and then press ENTER. The message “SAVED
OK” displays.

3.4.11 Configuring the Network Broadcast Type

on a Port

IP Routing Services recognizes and accepts as network broadcasts IP
packets with the host portion of the IP address as either all 1’s or all 0’s.
Other networking devices only recognize all 0’s as a network broadcast.

T o configure IP Routing Services to send netw ork broadcasts addressed to
all 0’s, complete the following steps:

1. Use the arrow keys to highlight the Network Bcast field.

2. Use the ENTER key to toggle the entry to ZEROS.

3. Use the arrow keys to highlight the SAVE command field at the
bottom of the screen and press ENTER. The message “SAVED OK”
displays.

18 MicroMMAC Local Management Routing Addendum

The IP General Config Screen

3.4.12 Enabling the RIP Routing Protocol on a Port

Routing Information Protocol (RIP) is a widely implemented routing
protocol that is used extensiv ely on IP internetworks. IP Routing Services
uses the RIP routing protocol to send and gather information about the
internetwork topology. This information is used to construct and maintain
a database called RIP Route Table, which contains the addresses of the
available routes to all the networks and hosts that RIP learns.

Enabling the RIP routing protocol allows IP Routing Services to build and
maintain a dynamic database of route information. The best routes
learned by the RIP routing protocol are added to the IP Forwarding Table
to be used to forward IP packets.The ability to switch the RIP routing
protocol on and off on a port-by-port basis provides great flexibility. On
the same device, some router ports could be running the RIP routing
protocol while other router ports are not running it. If necessary, you can
temporarily disable the RIP routing protocol on any port without affecting
the rest of your configuration.

To enable RIP Routing, complete the following steps:

1. From the IP Router Setup screen, highlight IP RIP and press ENTER.

The IP RIP Configuration screen, shown in Figure 3-5, displays.

2. Use the arrow keys to highlight the Port Level RIP-1 option.

3. Use the ENTER key to toggle the entry to ENABLED.

4. Use the arrow keys to highlight the SAVE option at the bottom of the

screen and press ENTER. The message “SAVED OK” displays.

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IP Address: xxx.xxx.xxx.xxx

Port: 1

System Level RIP-1:
Port Level RIP-1:

SAVE+PORT-

DISABLED

DISABLED

RETURN

2262_05

Figure 3-5 IP RIP Configuration Screen

3.5 IPX ROUTER SETUP SCREEN

The IPX Router Setup screen enables you to access the IPX General
Config, IPX RIP, and IPX SAP screens to configure the MicroMMAC for
IPX Routing and enable RIP routing or SAP routing on the MicroMMAC.

Access the IPX Router Setup screen, shown in Figure 3-6, by using the
arrow keys to highlight the IPX field on the Router Setup screen
(Figure 3-2) and pressing ENTER. The IPX Router Setup screen displays.

20 MicroMMAC Local Management Routing Addendum

IPX Router Setup

IPX General Config
IPX SAP
IPX RIP

IPX Router Setup Screen

RETURN

2262_06

Figure 3-6 IPX Router Setup Screen

3.5.1 The IPX Router Setup Fields

The following list describes each of the IPX Router Setup screen fields:

IPX General Config

Use this field to access the IPX General Configuration screen and
configure the MicroMMAC for IPX routing.

IPX SAP

Use this field to access the IPX SAP screen and enable Source
Advertisement Protocol (SAP) routing on the MicroMMAC.

IPX RIP

Use this field to access the IPX RIP screen and to enable Routing
Information Protocol (RIP) routing on the MicroMMAC.

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3.6 THE IPX GENERAL CONFIGURATION SCREEN

The IPX General Config screen enables you to configure the
MicroMMAC for IPX routing.

Access the IPX General Configuration screen by using the arrow keys to
highlight the IPX General Config option on the IPX Router Setup screen
and then pressing ENTER. The IPX General Configuration screen, shown
in Figure 3-7, displays.

MicroMMAC Local Management

Router Name: IPX

Version: XX.XX.XX

IPX Routing:ENABLED

Port: 1
MAC Address: 00-00-1D-22-46-B0
Oper Status: Enabled
IPX Address :0.0.0.0

+PORT-

Description: MicroMMAC EnetPort

IPX Routing: DISABLED

Status: Enabled
AdminStatusTime: 0 days 0 hours 39 min

MTU: 1500

System Level Setup

Port Level Setup

Interf. Type: ethernet-csmacd

SAVE RETURN

UpTime: 0 days 0 hours 39 min

Framing: Novell

IPX Forwarding: DISABLED

2262_07

Figure 3-7 The IPX General Configuration Screen

3.6.1 IPX General Configuration Status Fields

The following list describes each of the IPX General Configuration status
fields. The status fields are for informational purposes only and cannot be
modified.

Router Name

Displays the type of routing used.

Status

Displays the status of IPX Routing.

22 MicroMMAC Local Management Routing Addendum

The IPX General Configuration Screen

UpTime

Displays the amount of time elapsed since the last time the MicroMMAC
was rebooted.

Version

The version number of the IPX Routing used on the MicroMMAC.

AdminStatusTime

Displays the amount of time elapsed since an IP address was assigned to
the MicroMMAC.

Description

Describes the selected Port.

MAC Address

Displays the physical (MAC) address of the MicroMMAC.

Interf. T ype

Displays the type of interface used by the specified port.

Oper Status

Displays the operational status of the selected port.

3.6.2 IPX General Configuration Fields

This section provides a general overview of the procedures required to
configure the MicroMMAC. The following list describes each of the IPX
General Config fields.

+PORT-

Use this field to select the routing port that you are configuring.

MTU

Use this field to set the Maximum Transmission Unit (MTU).

Framing

Use this field to select the format of the frame in which IPX packets are
encapsulated for transmission.

IPX Address

Use this field to assign an IP address to the port that you are configuring.

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IPX Routing

Use this field to enable IP Routing Services.

IPX Forwarding

Use this field to enable IPX Forwarding.

3.6.2.1 Selecting a Port for Configuration

Routing Services enables you to choose the ports that you want to
configure for IPX routing. To select a router port to configure for IPX
routing, complete the following steps:

1. Use the arrow keys to highlight the PORT field.

2. Type in the number of the port that you want to configure for IPX
routing, then press ENTER.

You can type in the port number, or you can use the +PORT-

NOTE

option at the bottom of the screen to scroll through the list of
the ports on your device. To use the +PORT- option, use the
arrow keys to highlight the + (to go forward), or the - (to go
backward), and then press ENTER to scroll through the
available ports in the direction you selected. You can also use
the + and - keys to scroll through the available ports.

If you enter an invalid port number the error message: “PORT NUMBER
IS OUT OF RANGE” displays. Repeat steps 1 and 2.

3.6.2.2 Entering the IPX Address

All IPX hosts must have an IPX address for each network interf ace. These
addresses identify each network connection.

To enter the IPX address for a router port, complete the following steps:

1. Use the arrow keys to highlight the IPX ADDRESS field.

2. Enter the IPX address and press ENTER.

24 MicroMMAC Local Management Routing Addendum

The IPX General Configuration Screen

3.6.2.3 Selecting the Frame Type for a Port

On each port, frame type specifies the format of the frame in which IPX
packets are encapsulated for transmission. The frame type options
available for each router port are dependent on the type of media
supported by that router port.

To select the frame type for a port, complete the following steps:

1. Use the arrow keys to highlight the Framing field.

2. Use the ENTER key to toggle the entry to the correct frame type for

the port.

3. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and then press ENTER. The message “SAVED
OK” displays.

3.6.2.4 Setting the Maximum Transmission Unit (MTU)

The Maximum Transmission Unit specifies the maximum packet size for
all IPX packets that are transmitted.

To select the MTU for a port, complete the following steps:

1. Use the arrow keys to highlight the MTU field under Port Level Setup.

2. Enter an MTU value for the media used.

3. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and press ENTER. The message “SAVED OK”
displays.

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3.6.2.5 Enabling IPX Routing Services on a Port

The ability to switch IPX Routing Services on and off on a port-by-port
basis, provides great flexibility. On the same device, some ports can be
routing IPX traffic while other ports are bridging it. As you are in
transition from a bridged network to a routed network, this flexibility
allows you to implement IPX routing and test your routing configuration
on a port-by-port basis. If necessary, you can temporarily disable IPX
routing on any port without losing your configuration, or you can
temporarily switch from IPX routing back to bridging.

To enable IPX Routing Services on a router port, complete the following
steps:

1. Use the arrow keys to highlight the IPX Routing field.

2. Use the ENTER key to toggle the entry to ENABLED.

3. Use the arrow keys to highlight the SAVE option at the bottom of the
screen and press ENTER. The message “SAVED OK” displays.

3.6.2.6 Enabling IPX Forwarding on a Port

By default, IPX Forwarding is disabled on each router port. Your device
does not begin forwarding IPX data packets on any router port until you
enable IPX Forwarding on that port.

To enable IPX Forwarding on a router port, complete the following steps:

1. Use the arrow keys to highlight the IPX Forwarding field.

2. Use the ENTER key to toggle the entry to ENABLED.

3. Use the arrow keys to highlight the SAVE command field at the
bottom of the screen and press ENTER. The message “SAVED OK”
displays.

26 MicroMMAC Local Management Routing Addendum

The IPX General Configuration Screen

3.6.2.7 Enabling the IPX SAP Routing Protocol

on a Port

IPX Source Advertisement Protocol (SAP) is used by IPX to exchange
information about Novell service providing nodes, such as file serv ers and
print servers that are available. IPX SAP builds and maintains a database,
the Service Advertisement Table, containing the addresses and routes to
specific service providing nodes, and advertises this information over the
network.

Each router running IPX SAP gathers this LAN based information from
the locally connected network segments and adds it to its Service
Advertisement Table. Each table contains the Novell Network Number
and type of services available on all Novell servers known to the IPX
SAP. IPX Routing Services uses this information to provide
internetworked NetWare clients with access to these services.

To enable SAP Routing, complete the following steps:

1. From the IPX Router Setup screen, highlight IPX SAP and press

ENTER.
The IPX SAP Configuration screen, shown in Figure 3-8, displays.

2. Use the arrow keys to highlight the Port field.

3. Enter the number of the port that you wish to enable SAP routing,

press ENTER.

4. Use the arrow keys to highlight the Port Level SAP field.

5. Use the ENTER key to toggle the entry to ENABLED.

6. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and press ENTER. The message “SAVED OK”
displays.

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IPX Address: xxx.xxx.xxx.xxx

Port: 1

MicroMMAC Local Management

System Level SAP:

Port Level SAP:

SAVE+PORT-

DISABLED

DISABLED

RETURN

2262_08

Figure 3-8 IPX SAP Configuration Screen

3.6.2.8 Enabling the RIP Routing Protocol on a Port

IPX RIP (Routing Information Protocol) is widely implemented and used
extensively on IPX internetworks. IPX Routing Services use the RIP
routing protocol to send and gather information about the internetwork
topology. This information is used to construct and maintain a database,
called the RIP Route Table, containing the addresses and available routes
to all the networks and hosts that RIP learns.

Enabling the RIP routing protocol allows IPX Routing Services to build
and maintain a dynamic database of route information. The best routes
learned by the RIP routing protocol are added to the IPX Forwarding
Table to be used to forward IPX packets. The ability to switch the RIP
routing protocol on and off on a port-by-port basis provides great
flexibility. On the same device, some router ports can be running the RIP
routing protocol while other router ports are not. If necessary, you can
temporarily disable the RIP routing protocol on any port without affecting
the rest of your configuration.

28 MicroMMAC Local Management Routing Addendum

The IPX General Configuration Screen

To enable RIP Routing, complete the following steps:

1. From the IPX Router Setup screen, highlight IPX RIP and press

ENTER.
The IPX RIP Configuration screen, shown in Figure 3-9, displays.

2. Use the arrow keys to highlight the Port field.

3. Type in the number of the port on which you wish to enable RIP

routing and press ENTER.

4. Use the arrow keys to highlight the Port Level RIP field.

5. Use the ENTER key to toggle the entry to ENABLED.

6. Use the arrow keys to highlight the SAVE command field at the

bottom of the screen and press ENTER. The message “SAVED OK”
displays.

IPX Address: xxx.xxx.xxx.xxx

Port: 1

MicroMMAC Local Management

System Level RIP:
Port Level RIP:

SAVE+PORT-

DISABLED

DISABLED

Figure 3-9 IPX RIP Setup Screen

RETURN

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30 MicroMMAC Local Management Routing Addendum

INDEX

B

Bootstrap Protocol Client 16
Bootstrap Protocol Server 16
Bridge filtering 6
Bridging 3
Bridging and Routing 3, 4

C

Configuring the Network Broadcast

Type on a port 18

Configuring the UDP Broadcast

Redirector 16

D

Data Compression 2
Domain Name Server 16

E

Enabling Forwarding on a Port IP

15, 26
Enabling Proxy ARP on a port 17
Enabling Routing Services on a

port IP 15, 26
Enabling the RIP Routing Protocol on

a port 19, 28

F

Filtering 5

H

Host Name Server 16

I

IEEE 802.1d bridging 4
IP

Configuring the Network Broadcast

Type on a port 18

Configuring the UDP Broadcast

Redirector 16

Enabling Forwarding on a port 15,

26
Enabling Proxy ARP on a port 17
Enabling Routing Services on a

port 15, 26
Enabling the RIP Routing Protocol

on a port 19, 28
Selecting a port for

configuration 13, 24

IP General Config 10
IP internet firewall 5
IP routing 5
IPX Configuration 20
IPX Router Setup 8
IPX SAP Routing Protocol 27

M

Maximum Transmission Unit

(MTU) 14

MicroMMAC Kit 1

N

Netbios Datagram Server 16
Netbios Name Server 16
Network broadcast 18

MicroMMAC Local Management Routing Addendum Index-1

P

Proxy ARP 17

Index

R

RIP 19, 28
Routing 3
Routing Information Protocol

(RIP) 10, 19

S

Selecting a port for configuration

IP 13, 24
SIMM 1
Sunrpc (NIS) 16

T

TACACS-Database Service 16
Time 16
Trivial File Transfer 16

U

UDP

Bootstrap Protocol Client 16

Bootstrap Protocol Server 16

Configuring the Broadcast

Redirector 16
Domain Name Server 16
Host Name Server 16
Netbios Datagram Server 16
Netbios Name Server 16
Sunrpc (NIS) 16
TACACS-Database Service 16
Time 16
Trivial File Transfer 16

W

WAN Protocols 2

Index-2 MicroMMAC Local Management Routing Addendum