CT-5372
Multi-DSL Router
User’s Manual
Version A1.0, August 15, 2006
261074-001
Warning
Before servicing or disassembling this equipment, always disconnect all
power and telephone lines from the device.
Use an appropriate power supply and a UL Listed telephone line cord.
Specification of the power supply is clearly stated in Appendix D -
Specifications.
Preface
This manual provides information to network administrators. It covers the
installation, operation and applications of the wireless ADSL2+ router.
The reader reading this manual is presumed to have a basic understanding of
telecommunications. For product update, new product release, manual revision,
software upgrade, technical support, etc., visit Comtrend Corporation at
http://www.comtrend.com
This document is subject to change without notice.
Copyright
Copyright© 2006 Comtrend Corporation. All rights reserved. The information and
messages contained herein are proprietary to Comtrend Corporation. No part of
this document may be translated, transcribed, reproduced, in any form, or by any
means without prior written permission by Comtrend Corporation.
Technical support
When you find the product out of service, or that it doesn’t work properly, please
contact technical support engineer for immediate servicing or email to
INT-support@comtrend.com
1
Table of Contents
CHAPTER 1
1.1 FEATURES..................................................................................................................................5
1.2 APPLICATION ............................................................................................................................. 6
1.3 FRONT PANEL LED INDICATORS................................................................................................7
CHAPTER 2 INSTALLATION ........................................................................................................ 8
2.1 HARDWARE INSTALLATION........................................................................................................8
2.2 INSTALLING THE USB DEVICE DRIVER ...................................................................................10
CHAPTER 3 LOGIN VIA THE WEB BROWSER......................................................................15
3.1 IP ADDRESS.............................................................................................................................15
3.2 LOGIN PROCEDURE ................................................................................................................. 16
3.3 DEFAULT SETTINGS ................................................................................................................. 17
CHAPTER 4 QUICK SETUP.........................................................................................................18
4.1 WAN....................................................................................................................................... 19
4.2 STATI ST IC S ..............................................................................................................................20
INTRODUCTION ......................................................................................................5
4.2.1 LAN Statistics..................................................................................................................21
4.2.2 WAN Statistics.................................................................................................................22
4.2.3 ATM statistics .................................................................................................................23
4.2.4 ADSL Statistics ...............................................................................................................25
4.2.5 VDSL Statistics ...............................................................................................................28
4.2.6 Route............................................................................................................................... 30
4.2.7 ARP................................................................................................................................. 30
4.2.8 DHCP .............................................................................................................................31
CHAPTER 5 QUICK SETUP.........................................................................................................32
5.1 AUTO QUICK SETUP ................................................................................................................33
5.2 MANUAL QUICK SETUP ........................................................................................................... 34
5.2.1 PPP over ATM (PPPoA) and PPP over Ethernet (PPPoE)............................................36
5.2.2 MAC Encapsulation Routing (MER) ..............................................................................41
5.2.3 IP Over ATM................................................................................................................... 46
5.2.4 Bridging..........................................................................................................................50
CHAPTER 6 ADVANCED SETUP................................................................................................ 52
6.1 WAN....................................................................................................................................... 52
6.2 LAN........................................................................................................................................ 53
2
6.3
NAT ........................................................................................................................................55
6.3.1 Virtual Servers ................................................................................................................55
6.3.2 Port Triggering...............................................................................................................57
6.3.3 DMZ Host .......................................................................................................................59
6.3.4 ALG ................................................................................................................................60
6.4 SECURITY ................................................................................................................................61
6.4.1 IP Filtering .....................................................................................................................61
6.4.2 Parental Control ............................................................................................................. 64
6.5 QUALITY OF SERVICE ..............................................................................................................65
6.6 ROUTING .................................................................................................................................70
6.6.1 Default Gateway ............................................................................................................. 70
6.6.2 Static Route.....................................................................................................................71
6.6.3 RIP..................................................................................................................................72
6.7 DNS........................................................................................................................................ 73
6.7.1 DNS Server .....................................................................................................................73
6.7.2 Dynamic DNS .................................................................................................................74
6.8 DSL ........................................................................................................................................76
6.9 PRINT SERVER .........................................................................................................................77
6.10 PORT MAPPING........................................................................................................................ 78
6.11 IPSEC ......................................................................................................................................81
6.12 CERTIFICATE............................................................................................................................85
6.12.1 Local...............................................................................................................................86
6.12.2 Trusted CA......................................................................................................................88
CHAPTER 7 WIRELESS ...............................................................................................................89
7.1 WIRELESS BASIC SCREEN........................................................................................................89
7.1.1 Security ........................................................................................................................... 91
7.1.2 MAC Filter......................................................................................................................95
7.1.3 Wireless Bridge...............................................................................................................97
7.1.4 Advanced ........................................................................................................................98
7.1.5 Quality of Service .........................................................................................................101
7.1.6 Station Info ...................................................................................................................102
CHAPTER 8 DIAGNOSTICS ......................................................................................................103
CHAPTER 9 MANAGEMENT ....................................................................................................104
9.1 SETTINGS .............................................................................................................................. 104
9.1.1 Configuration Backup...................................................................................................105
9.1.2 Tools – Update Settings ................................................................................................106
9.1.3 Restore Default............................................................................................................. 107
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9.2
SYSTEM LOG .........................................................................................................................109
9.3 TR-069 CLIENT..................................................................................................................... 112
9.4 INTERNET TIME .....................................................................................................................114
9.5 ACCESS CONTROL .................................................................................................................115
9.5.1 Services......................................................................................................................... 116
9.5.2 Access IP Addresses...................................................................................................... 117
9.5.3 Passwords..................................................................................................................... 118
9.6 UPDATE SOFTWARE................................................................................................................ 119
9.7 SAVE AND REBOOT ................................................................................................................120
APPENDIX A: PRINTER SERVER CONFIGURATION............................................................. 121
APPENDIX B: FIREWALL.............................................................................................................. 127
APPENDIX C: PIN ASSIGNMENTS...............................................................................................133
APPENDIX D: SPECIFICATIONS..................................................................................................134
APPENDIX E: SSH CLIENT............................................................................................................136
4
Chapter 1 Introduction
The CT-5372 is a leading Multi-DSL wireless router that can support both ADSL2+
and VDSL2. VDSL2 is a brand new standard and technology that is perfectly suitable
for triple play (video, voice and data) applications.
1.1 Features
• Supports both ADSL2+ and VDSL2
• Automatically switches to ADSL2+ or VDSL2 according to the port setting of
DSLAM
• Wi-Fi Certified (optional)
• UPnP
• Integrated 802.11g AP (optional)
• WPA and 802.1x
• RADIUS client
• IP /MAC address filtering
• Static route/RIP/RIP v2 routing functions
• Dynamic IP assignment
• IP QoS
• NAT/PAT
• IGMP Proxy and fast leave
• DHCP Server/Relay/Client
• DNS Proxy
• Auto PVC configuration
• Per-VC packet level QoS
• Up to 8 VCs
• Embedded SNMP agent
• Web-based management
• Remote configuration and upgrade
• Supports TR-069
• Configuration backup and restoration
• FTP server
• TFTP server
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1.2 Application
The following diagram depicts the application of the CT-5372.
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1.3 Front Panel LED Indicators
The front panel LEDs are shown in the picture below, followed by an explanation in
the table below.
LED Color Mode Function
Green On The router is powered up. POWER
Off The router is powered down.
Green On An Ethernet Link is established.
LAN 4X~1X
WIRELESS
USB
ADSL
Off An Ethernet Link is not established.
Green Blink Data transmitting or receiving over LAN.
Green On The Wireless is ready and idle.
Off The Wireless is not installed.
Green Blink Data transmitting or receiving over Wireless.
Green On A USB link is established.
Off A USB link is established.
Green Blink Data transmitting or receiving over USB.
Green On The ADSL link is established.
Off The ADSL link is not established.
The ADSL link is training or some traffic is passing
Green Blink
through ADSL.
Green On The VDSL link is established.
VDSL
ALARM
7
Off The VDSL link is not established.
The VDSL link is training or some traffic is passing
Green Blink
through VDSL.
Red On The A/VDSL link is terminated.
Off Normal operating status.
Chapter 2 Installation
2.1 Hardware Installation
In the rear panel, there is a reset button. To load the factory default settings, hold
the reset button down for at least 5 seconds.
Follow the instructions below to complete the hardware connections.
Connection to LINE port
If you wish to connect both the router and a telephone, connect the LINE port to a
POTS splitter with a RJ11 connection cable.
Host
Reset button
Power Switch
Connection to LAN port
To connect to a hub or PC, use a RJ45 cable. You can connect the router to up to four
LAN devices. The ports are auto-sensing MDI/X and either straight-through cable
or crossover cable can be used.
Connection to USB port
Connect the USB port to a PC with a standard USB cable.
Connection to USB host port
The CT-5372 is equipped with one high-speed USB2.0 host connection.
With software support, users can connect USB devices such as printers and a hard
disc to the CT-5372. For this software release, printer server is supported.
8
Connection to Power
Connect the Power jack to the shipped power cord. Attach the power adapter to
the wall outlet or other AC source.
After all connections have been made, press the power-switch in to turn the device
on. After power on, the router performs a self-test. Wait for a few seconds until the
test is finished, then the router will be ready to operate.
Caution 1: If the router fails to power up, or it malfunctions, first verify that the
power supply is connected correctly. Then power it on again. If the
problem persists, contact our technical support engineers.
Caution 2: Before servicing or disassembling this equipment, always disconnect
all power cords and telephone lines from the wall outlet.
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2.2 Installing the USB Device Driver
Before you connect your router’s USB cable to yo ur P C , you mu st l o ad th e ADS L USB
drivers. The USB driver supports Windows 98, ME, 2000, and XP.
To connect the router to a PC using the USB interface, you need to use a standard
USB cable and install the USB interface software. Follow the steps below:
STEP 1: Connect the USB router to the PC by plugging the flat connector of a
standard USB cable into your PC, and plugging the square connector into
the router. The screen will display as below:
STEP 2: When the screen displays as below, click the Next button.
Note: This screen won’t be displayed if the USB Driver has been previously
un/installed.
10
STEP 3: When the screen displays as below, select Search for a suitable driver
and click the Next button.
STEP 4: Select Specify a location and click the Next button. If you are installing the
software from a disk, insert the disk.
11
STEP 5: Select the location of the file using the Browse button. Normally, the file
is on the CD-ROM shipped with the device.
STEP 6: Locate the file, and click the Open button.
12
STEP 7: When the screen displays as below, click the OK button.
STEP 8: When the screen below displays, click the NEXT button.
STEP 9: Click the Finish button, when the screen displays as below.
13
STEP 10: Installation is complete.
14
Chapter 3 Login via the Web Browser
This section describes how to manage the router via a Web browser via the remote
end. You can use a web browser such as Microsoft Internet Explorer, or Netscape
Navigator. (The Web page is best viewed with Microsoft Internet Explorer 5.5 and
later): A unique default user account is assigned with user name root and password
12345. The user can change the default password later when logged in to the
device.
3.1 IP Address
The default IP address of the CT-5372 (LAN port) is 192.168.1.1. To configure the
CT-5372 for the first time, the configuration PC must have a static IP address within
the 192.168.1.x subnet. Follow the steps below to configure your PC IP address to
use subnet 192.168.1.x.
STEP 1: Right click on the Local Area Connection under the Network and Dial-Up
connection window and select Properties.
STEP 2: Enter the TCP/IP screen and change the IP address to the domain of
192.168.1.x/24.
STEP 3: Click OK to submit the settings.
STEP 4: Start your Internet browser and type the IP address for the router
(192.168.1.1) in the Web address bar.
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3.2 Login Procedure
Perform the following steps to bring up the Web user interface and configure the
CT-5372. To log on to the system from the Web browser, follow the steps below:
STEP 1: Start your Internet browser. Type the IP address for the router in the Web
address field. For example, if the IP address is 192.168.1.1, type
http://192.168.1.1
STEP 2: You will be prompted to enter your user name and password. Type root in
the user name and 12345 in the password field, and click OK. These
values can be changed later in the Web User Interface by selecting the
Management link.
STEP 3: After successfully logging in, you will reach the Quick Setup menu.
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3.3 Default Settings
During power on initialization, the CT-5372 initializes all configuration attributes to
default values. It will then read the configuration profile from the Permanent
Storage section on the flash memory. The default attributes are overridden when
identical attributes with different values are configured. The configuration profile
in Permanent Storage can be created via the Web user interface or telnet user
interface, or other management protocols. The factory default configuration can be
restored either by pushing the reset button for more than five seconds, or by
clicking the Restore Default Configuration option in the Restore Settings screen.
The following default settings are present when setting up the router for the first
time.
LAN port IP address: 192.168.1.1
Local administrator account name: root
Local administrator account password: 12345
Local non- administrator account name: user
Local non- administrator account password: user
Remote WAN access account name: support
Remote WAN access account password: support
DHCP server on LAN interface: enabled
WAN IP address: none
17
Chapter 4 Quick Setup
After login, the Quick Setup screen appears as shown.
Note: The selections available on the left side of menu are based upon the
configured connection.
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4.1 WAN
Click Device Info on the menu bar to display the WAN option. Then, click WAN on
the Device Info menu bar to display the configured PVC(s) and the status.
VPI/VCI Shows the values of the ATM VPI/VCI
Con. ID Shows the connection ID
Category Shows the ATM service classes
Service Shows the name for WAN connection
Interface Shows connection interfaces
Protocol Shows the connection type, such as PPPoE, PPPoA, etc.
IGMP Shows the state of the IGMP function
State Shows the connection state of the WAN connection
Status Lists the status of DSL link
IP Address Shows IP address for WAN interface
19
4.2 Statistics
Selection of the Statistics screen provides statistics for the Network Interface of LAN,
WAN, ATM, ADSL and VDSL. All statistics screens are updated every 15 seconds.
20
4.2.1 LAN Statistics
The Network Statistics screen shows the interface statistics for the ATM AAL5
interface, and Ethernet interfaces. (The Network Statistics screen shows the
interface statistics for the LAN interface. This provides byte transfer, packet transfer,
Error and Drop statistics for the LAN interface.)
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4.2.2 WAN Statistics
Service Shows the service type
VPI/VCI Shows the values of the ATM VPI/VCI
Protocol Shows the connection type, such as PPPoE,
PPPoA, etc.
Interface Shows connection interfaces
Received/Transmitted - Bytes
- Pkts
- Errs
- Drops
Rx/TX (receive/transmit) packet in Bytes
Rx/TX (receive/transmit) packets
Rx/TX (receive/transmit) the errored packets
Rx/TX (receive/transmit) dropped packets
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4.2.3 ATM statistics
The following figure shows the ATM statistics screen.
ATM Interface Statistics
Field Description
In Octets Number of received octets over the interface
Out Octets Number of transmitted octets over the interface
In Errors Number of cells dropped due to uncorrectable HEC errors
In Unknown Number of received cells discarded during cell header validation,
including cells with unrecognized VPI/VCI values, and cells with
invalid cell header patterns. If cells with undefined PTI values
are discarded, they are also counted here.
In Hec Errors Number of cells received with an ATM Cell Header HEC error
In Invalid Vpi Vci
Errors
In Port Not
Enabled Errors
In PTI Errors Number of cells received with an ATM header Payload Type
In Idle Cells Number of idle cells received
In Circuit Type
Errors
In Oam RM CRC
Number of cells received with an unregistered VCC address.
Number of cells received on a port that has not been enabled.
Indicator (PTI) error
Number of cells received with an illegal circuit type
Number of OAM and RM cells received with CRC errors
Errors
In GFC Errors Number of cells received with a non-zero GFC.
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ATM AAL5 Layer Statistics over ADSL interface
Field Description
In Octets Number of received AAL5/AAL0 CPCS PDU octets
Out Octets Number of received AAL5/AAL0 CPCS PDUs octets transmitted
In Ucst Pkts Number of received AAL5/AAL0 CPCS PDUs passed to a
higher-layer
Out Ucast Pkts Number of received AAL5/AAL0 CPCS PDUs received from a
higher layer for transmission
In Errors Number of received AAL5/AAL0 CPCS PDUs received in error.
The types of errors counted include CRC-32 errors.
Out Errors Number of received AAL5/AAL0 CPCS PDUs that could be not
transmitted due to errors.
In Discards Number of received AAL5/AAL0 CPCS PDUs discarded due to
an input buffer overflow condition.
Out Discards This field is not currently used
ATM AAL5 Layer Statistics for each VCC over ADSL interface
Field Descriptions
CRC Errors Number of PDUs received with CRC-32 errors
SAR TimeOuts Number of partially re-assembled PDUs which were discarded
because they were not fully re-assembled within the required
period of time. If the re-assembly time is not supported
then, this object contains a zero value.
Over Sized SDUs Number of PDUs discarded because the corresponding SDU
was too large
Short Packets Errors Number of PDUs discarded because the PDU length was less
than the size of the AAL5 trailer
Length Errors Number of PDUs discarded because the PDU length did not
match the length in the AAL5 trailer
24
4.2.4 ADSL Statistics
The following figure shows the ADSL Network Statistics screen. Within the ADSL
Statistics window, a bit Error Rate Test can be started using the ADSL BER Test
button. The Reset button resets the statistics.
25
Field Description
Mode Modulation protocol ITU-T G.992.5, ITU-T G.992.3, ITU-T
G.992.1, ANSI T1.413 Issue 2
Type Channel type Interleave or Fast
Line Coding DMT Trellis on
Status Lists the status of the DSL link
Link Power State Link output power state.
SNR Margin (dB) Signal to Noise Ratio (SNR) margin
Attenuation (dB) Estimate of average loop attenuation in the downstream
direction.
Output Power (dBm) Total upstream output power
Attainable Rate (Kbps) The sync rate you would obtain.
Rate (Kbps) Current sync rate.
Super Frames Total number of super frames
Super Frame Errors Number of super frames received with errors
RS Words Total number of Reed-Solomon code errors
RS Correctable Errors Total Number of RS with correctable errors
RS Uncorrectable Errors Total Number of RS words with uncorrectable errors
HEC Errors Total Number of Header Error Checksum errors
OCD Errors Total Number of out-of-cell Delineation errors
LCD Errors Total number of Loss of Cell Delineation
Total ES: Total Number of Errored Seconds
Total SES: Total Number of Severely Errored Seconds
Total UAS: Total Number of Unavailable Seconds
If you are connected to an ADSL link the following page will be displayed.
26
The extra items are explained here.
K (number of bytes in DMT frame): 255 27
R (number of check bytes in RS code word): 0 0
S (RS code word size in DMT frame): 1 1
D (interleaver depth): 1 1
Delay (msec): 0 0
27
4.2.5 VDSL Statistics
28
Field Description
Status: VDSL link status.
B0 Traffic Type: ATM or PTM
B0 Rate (Kbps): Bearer 0 current sync rate.
B1 Traffic Type: ATM or PTM
B1 Rate (Kbps): Bearer 1 current sync rate.
Derived Second Counters:
Current 15 min ES: An accumulative total for current 15
minute ES.
Current 15 min SES: An accumulative total for current 15
minute SES.
Current 15 min UAS: An accumulative total for current 15
minutes UAS.
Current 24 hours ES: An accumulative total for current 24
hours ES.
Current 24 hours SES: An accumulative total for current 24
hours SES.
Current 24 hours UAS: An accumulative total for current 24
hours UAS.
Anomaly Counters:
Bearer 0:
Current 15 min CRC-8 anomalies: An accumulative total for current 15
minute CRC-8 anomalies
Current 15 min Corrected Codewords: An accumulative total for current 15
minute Corrected Codewords
Current 24 hours CRC-8 anomalies: An accumulative total for current 24
hours CRC-8 anomalies
Current 24 hours Corrected Codewords: An accumulative total for current hours
CRC-8 corrected codewords
Bearer 1:
Current 15 min CRC-8 anomalies: An accumulative total for current 15
minute CRC-8 anomalies
Current 15 min Corrected Codewords: An accumulative total for current 15
minute Corrected Codewords
Current 24 hours CRC-8 anomalies: An accumulative total for current 24
hours CRC-8 anomalies
Current 24 hours Corrected Codewords: An accumulative total for current 24
hours CRC-8 corrected codewords
29
4.2.6 Route
Choose Route to display the routes that the route information has learned.
4.2.7 ARP
Click ARP to display the ARP information.
30
4.2.8 DHCP
Click DHCP to display the DHCP information.
31
Chapter 5 Quick Setup
The Quick Setup allows the user to configure the A/VDSL router for DSL connectivity
and Internet access. It also guides the user though the WAN network setup first
and then the LAN interface setup. You can either manually customize the router or
follow the online instruction to set up the router.
The CT-5372 A/VDSL router supports the following five network operating modes
over an ATM PVC WAN interface.
PPP over Ethernet (PPPoE)
PPP over ATM (PPPoA)
MAC Encapsulated Routing (MER)
IP over ATM (IPoA)
Bridging
The following configuration considerations apply:
The WAN network operating mode operation depends on the service provider’s
configuration on the Central Office side and Broadband Access Server for the
PVC
If the service provider provides PPPoE service, then the connection selection
depends on whether the LAN-side device (typically a PC) is running a PPPoE
client or whether the CT-5372 is to run the PPPoE client. The CT-5372 can
support both cases simultaneously.
If some or none of the LAN-side devices do not run PPPoE client, then select
PPPoE. If every LAN-side device is running a PPPoE client, then select Bridge
in PPPoE mode. CT-5372 also supports pass-through PPPoE sessions from the
LAN side while simultaneously running a PPPoE client for non-PPPoE LAN
devices.
NAPT and firewall are always enabled when PPPoE mode is selected, but they
can be enabled or disabled by the user wh en M E R or I Po A i s se l ecte d, NA PT an d
firewall are always disabled when Bridge mode is selected.
Depending on the network operating mode, and whether NAPT and firewall are
enabled or disabled, the main panel will display or hide the NAPT/Firewall
menu. For instance, at initial setup, the default network operating mode is
Bridge. The main panel will not show the NAPT and Firewall menu.
32
Note: Up to eight PVC profiles can be configured and saved on the flash memory. To
activate a particular PVC profile, you need to navigate all the Quick Setup pages
until the last summary page, then click on the Finish button and reboot the system.
5.1 Auto Quick Setup
The auto quick setup requires the A/VDSL link to be up. The A/VDSL router will
automatically detect the PVC. You only need to follow the online instructions that
you are prompted with.
1. Select Quick Setup to display the DSL Quick Setup screen.
2. Click Next to start the setup process. Follow the online instructions to complete
the setting. This procedure will skip some processes like PVC index, or
encapsulation.
3. After the settings are complete, you can use the ADSL service.
33
5.2 Manual Quick Setup
STEP 1: Click Quick Setup and un-tick the DSL Auto-connect checkbox to enable
manual configuration of the connection type.
STEP 2: Enter the Virtual Path Identifier (VPI) and Virtual Channel Identifier (VCI).
Un-tick this checkbox to enable manual setup and display
the following screen.
Select Enable Quality Of Service if required. Click Next.
STEP 3: Then, choose the Encapsulation mode. Select Enable 802.1q (by ticking
the box) if required, and input a number for the VLAN ID. Click Next.
34
Encapsulation Mode
Choosing different connection types provides different encapsulation modes.
PPPoA- VC/MUX, LLC/ENCAPSULATION
PPPoE- LLC/SNAP BRIDGING, VC/MUX
MER- LLC/SNAP-BRIDGING, VC/MUX
IPoA- LLC/SNAP-ROUTING, VC MUX
Bridging- LLC/SNAP-BRIDGING, VC/MUX
STEP 4: Click Next to display the following screen. Choosing different connection
types pops up different settings requests. Enter appropriate settings that
are requested by your service provider. The following descriptions state
each connection type setup separately.
35
5.2.1 PPP over ATM (PPPoA) and PPP over Ethernet (PPPoE)
1. Select the PPP over ATM (PPPoA) or PPP over Ethernet (PPPoE) radio
button and click Next. The following screen appears:
PPP USERNAME/PPP PASSWORD
The PPP Username and the PPP password requirement are dependent on the
particular requirements of the ISP or the ADSL service provider. The WEB user
interface allows a maximum of 256 characters in the PPP user name and a maximum
of 32 characters in PPP password.
Disconnect if no activity
The CT-5372 can be configured to disconnect if there is no activity for a period of
time by selecting the Disconnect if no activity check box. When the checkbox is
ticked, you need to enter the inactivity timeout period. The timeout period ranges
from 1 minute to 4320 minutes. The default is 0 minutes.
36
PPP IP Extension
The PPP IP Extension is a special feature deployed by some service providers.
Unless your service provider specially requires this setup, do not select it.
The PPP IP Extension supports the following conditions:
Allows only one PC on the LAN
The public IP address assigned by the remote side using the PPP/IPCP protocol
is actually not used on the WAN PPP interface. Instead, it is forwarded to the
PC’s LAN interface through DHCP. Only one PC on the LAN can be connected
to the remote, since the DHCP server within the ADSL router has a single IP
address to assign to a LAN device.
NAPT and firewall are disabled when this option is selected.
The ADSL router becomes the default gateway and DNS server to the PC
through DHCP using the LAN interface IP address.
The ADSL router extends the IP subnet at the remote service provider to the
LAN PC. That is, the PC becomes a host belonging to the same IP subnet.
The ADSL router bridges the IP packets between WAN and LAN ports, unless
the packet is addressed to the router’s LAN IP address.
Use Static IP Address
Unless your service provider specially requires this setup, do not select it.
If selected, enter your static IP address.
Enable PPP Debug Mode
Enable the PPPoE debug mode. The system will put more PPP connection
information in System Log. But this is for debug, please don't enable in normal
usage.
2. Click Next to display the following screen.
Enable IGMP Multicast checkbox: Tick the checkbox to enable IGMP multicast
(proxy). IGMP (Internet Group Membership Protocol) is a protocol used by IP hosts
to report their multicast group memberships to any immediately neighboring
multicast routers.
37
Enable WAN Service checkbox: Tick this item to enable the ADSL service.
Untick it to stop the ADSL service.
Service Name: This is user-defined.
3. After entering your settings, select Next. The following screen appears. This
page allows the user to configure the LAN interface IP address, subnet mask and
DHCP server. If the user would like this ADSL router to assign dynamic IP address,
DNS server and default gateways to other LAN devices, select the button Enable
DHCP server on the LAN to enter the starting IP address and end IP address and
DHCP leased time.
38
The Device Setup page allows the user to configure the LAN interface IP address and
DHCP server. If the user would like this ADSL router to assign dynamic IP
addresses, DNS server and default gateway to other LAN devices, select the radio
box Enable DHCP server on the LAN to enter the starting IP address and end IP
address and DHCP lease time. This configures the router to automatically assign IP
addresses, default gateway address and DNS server addresses to each of your PCs.
Note that the router’s default IP address is 192.168.1.1 and the default private
address range provided by the ISP server in the router is 192.168.1.2 through
192.168.1.254.
To configure a secondary IP address for the LAN port, click the box as shown below.
4. The following screen will be displayed. To enable the wireless function, select the
box (by clicking on it) and input the SSID. Then, click Next.
5. Click Next to display the WAN Setup-Summary screen that presents the entire
configuration summary. Click Save/Reboot if the settings are correct. Click
Back if you wish to modify the settings.
39
6. After clicking Save/Reboot, the router will save the configuration to the flash
memory, and reboot. The Web UI will not respond until the system is brought up
again. After the system is up, the Web UI will refresh to the Device Info page
automatically. The CT-5372 is ready for operation and the LEDs display as
described in the LED description tables.
40
5.2.2 MAC Encapsulation Routing (MER)
To configure MER, do the following.
1. Select Quick Setup and click Next.
2. Enter the PVC Index provided by the ISP and click Next.
3. Select the MAC Encapsulation Routing (MER) radio button, and click Next. The
following screen appears.
Enter information provided to you by your ISP to configure the WAN IP settings.
Notice: DHCP can be enabled for PVC in MER mode if Obtain an IP address
automatically is chosen. Changing the default gateway or the DNS effects the
whole system. Configuring them with static values will disable the automatic
assignment from DHCP or other WAN connection.
If you configure static default gateway over this PVC in MER mode, you must enter
the IP address of the remote gateway in the "Use IP address". The "Use WAN
interface" is optional.
The ISP should provide the values that must be entered in the entry fields.
41
4. Click Next to display the following screen.
Enable NAT checkbox: If the LAN is configured with a private IP address, the user
should select this checkbox. The NAT submenu on the left side main panel will be
displayed after reboot. The user can then configure NAT-related features after the
system comes up. If a private IP address is not used on the LAN side, this checkbox
should be de-selected to free up system resources for better performance. When
the system comes back after reboot, the NAT submenu will not be displayed on the
left main panel. The default setting for Mer is enable.
Enable Firewall checkbox: If the firewall checkbox is selected, the firewall
submenu on the left side main panel will be displayed after system reboot. The
user can then configure firewall features after the system comes up. If firewall is
not used, this checkbox should be de-selected to free up system resources for better
performance. When system comes back after reboot, the Firewall submenu will
not be displayed on the left main panel. The default setting for Mer is enable.
Enable IGMP Multicast: Tick the checkbox to enable IGMP multicast (proxy).
IGMP (Internet Group Membership Protocol) is a protocol used by IP hosts to report
their multicast group memberships to any immediately neighboring multicast
routers.
Enable WAN Service: Tick the checkbox to enable the WAN (ADSL) service. If
this item is not selected, you will not be able to use the ADSL service. The default
setting for Mer is enable.
Service Name: This is User-defined.
42
5. Upon completion, click Next. The following screen appears.
The Device Setup page allows the user to configure the LAN interface IP address and
DHCP server. If the user would like this ADSL router to assign dynamic IP
addresses, DNS server and default gateway to other LAN devices, select the radio
box Enable DHCP server on the LAN to enter the starting IP address and end IP
address and DHCP lease time. This configures the router to automatically assign IP
addresses, default gateway address and DNS server addresses to each of your PCs.
Note that the router’s default IP address is 192.168.1.1 and the default private
address range provided by the ISP server in the router is 192.168.1.2 through
192.168.1.254.
43
Select Enable DHCP Server Relay (if required), and enter the DHCP Server IP
Address. This allows the router to relay the DHCP packets to the remote DHCP server.
The remote DHCP server will provide the IP address.
To configure a secondary IP address for the LAN port, click the box as shown below.
6. After entering your settings, select Next to display the following screen. The WAN
Setup-Summary screen presents the entire configuration summary. Click
Save/Reboot if the settings are correct. Click Back if you wish to modify the
settings.
7. The following screen will be displayed. To enable the wireless function, select the
box (by clicking on it) and input the SSID. Then, click Next.
The following screen will be displayed.
44
After clicking Save/Reboot, the router will save the configuration to the flash
memory, and reboot. The Web UI will not respond until the system is brought up
again. After the system is up, the Web UI will refresh to the Device Info page
automatically. The CT-5372 is ready for operation and the LEDs display as
described in the LED description tables.
45
5.2.3 IP Over ATM
To configure IP Over ATM,
1. Select Quick Setup and click Next.
2. Enter the PVC Index and click Next.
3. Type the VPI and VCI values provided by the ISP and click Next.
4. Select the IP over ATM (IPoA) radio button and click Next. The following screen
appears.
Notice that DHCP is not supported over IPoA. The user must enter the IP address
or WAN interface for the default gateway setup, and the DNS server addresses
provided by the ISP.
5. Click Next. The following screen appears.
46
Enable NAT checkbox
If the LAN is configured with a private IP address, the user should select this
checkbox. The NAT submenu on the left side main panel will be displayed after
reboot. The user can then configure NAT-related features after the system comes
up. If a private IP address is not used on the LAN side, this checkbox should be
de-selected to free up system resources for better performance. When the system
comes back after reboot, the NAT submenu will not be displayed on the left main
panel. The default setting for IPoA is enable.
Enable Firewall checkbox
If the firewall checkbox is selected, the firewall submenu on the left side main panel
will be displayed after system reboot. The user can then configure firewall features
after the system comes up. If firewall is not used, this checkbox should be
de-selected to free up system resources for better performance. When system
comes back after reboot, the Firewall submenu will not be displayed on the left main
panel. The default setting for IPoA is enable.
Enable WAN Service: Tick the checkbox to enable the WAN (ADSL) service. If
this item is not selected, you will not be able to use the ADSL service. The default
setting for IPoA is enable.
6. Click Next to display the following screen. The Device Setup page allows the user
to configure the LAN interface IP address and DHCP server if the user would like this
ADSL router to assign dynamic IP addresses, DNS server and default gateway to
other LAN devices. Select the button Enable DHCP server on the LAN to enter the
starting IP address and end IP address and DHCP lease time.
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The user must configure the IP Address and the Subnet Mask. To use the DHCP
service on the LAN, select the Enable DHCP server checkbox, and enter the Start
IP addresses, the End IP address and DHCP lease time. This configures the router
to automatically assign IP addresses, default gateway address and DNS server
addresses to each of your PCs.
Note that the router’s default IP address is 192.168.1.1 and the default private
address range provided by ISP server in the router is 192.168.1.2 through
192.168.1.254.
Select Enable DHCP Server Relay (if required), and enter the DHCP Server IP
Address. This allows the router to relay the DHCP packets to the remote DHCP server.
The remote DHCP server will provide the IP address.
To configure a secondary IP address for the LAN port, click the box as shown below.
48
7. The WAN Setup-Summary screen presents the entire configuration summary.
Click Save/Reboot if the settings are correct. Click Back if you wish to modify the
settings.
8. The following screen will be displayed. To enable the wireless function, select the
box (by clicking on it) and input the SSID. Then, click Next.
The following screen will be displayed.
8. After clicking Save/Reboot, the router will save the configuration to the flash
memory, and reboot. The Web UI will not respond until the system is brought up
again. After the system is up, the Web UI will refresh to the Device Info page
automatically. The CT-5372 is ready for operation and the LEDs display as
described in the LED description tables.
49
5.2.4 Bridging
Select the bridging mode. To configure Bridging, do the following.
1. Select Quick Setup and click Next.
2. Enter the PVC Index and click Next.
3. Type in the VPI and VCI values provided by the ISP and click Next.
4. Select the Bridging radio button and click Next. The following screen appears.
To use the bridge service, tick the checkbox, Enable Bridge Service, and enter
the service name.
5. Click the Next button to continue. Enter the IP address for the LAN interface.
The default IP address is 192.168.1.1. The LAN IP interface in bridge operating
mode is needed for local users to manage the ADSL router. Notice that there is
no IP address for the WAN interface in bridge mode, and the remote technical
support cannot access the ADSL router.
6. Click next
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7. The following screen will be displayed. To enable the wireless function, select the
box (by clicking on it) and input the SSID. Then, click Next.
The following screen will be displayed.
The WAN Setup-Summary screen presents the entire configuration summary.
Click Save/Reboot if the settings are correct. Click Back if you wish to modify the
settings.
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Chapter 6 Advanced Setup
This chapter explains: WAN, LAN, Routing, DSL and Port Mapping…...
6.1 WAN
VlanID
• This function means one can add an 802.1Q VLAN tag on
It means the packets are sent to WAN and a specific VlanID
PPPoE/MER or Bridge mode.
(802.1Q tag) will be added in the Ethernet header. The VlanID
shows which 802.1Q tag will be added.
For further information on WAN, please reference section: 4.1, Page 19.
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6.2 LAN
Configure the DSL Router IP Address and Subnet Mask for LAN interface. Save
button only saves the LAN configuration data. Save/Reboot button saves the LAN
configuration data and reboots the router to make the new configuration effective.
IP Address: Enter the IP address for the LAN port.
Subnet Mask: Enter the subnet mask for the LAN port.
Enable IGMP Snooping: Enable /Disable the function that is IGMP Snooping.
Standard Mode: In standard mode, as in all prior releases, multicast traffic will
flood to all bridge ports when there is no client subscribes to any multicast group –
even when IGMP snooping is enabled.
Blocking Mode: In blocking mode, the multicast data traffic will be blocked and not
flood to all bridge ports when there is no client subscription to any multicast group.
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To configure a secondary IP address for the LAN port, click the box as shown below.
IP Address: Enter the secondary IP address for the LAN port.
Subnet Mask: Enter the secondary subnet mask for the LAN port.
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6.3 NAT
To display the NAT function, you need to enable the NAT feature in the WAN Setup.
6.3.1 Virtual Servers
Virtual Server allows you to direct incoming traffic from WAN side (identified by
Protocol and External port) to the Internal server with private IP address on the LAN
side. The Internal port is required only if the external port needs to be converted to
a different port number used by the server on the LAN side. A maximum 32 entries
can be configured.
To add a Virtual Server, simply click the Add button. The following will be displayed.
55
Select a Service
Or
Custom Server
User should select the service from the list.
Or
User can enter the name of their choice.
Server IP Address Enter the IP address for the server.
External Port Start Enter the starting external port number (when you select
Custom Server). When a service is selected the port ranges
are automatically configured.
External Port End Enter the ending external port number (when you select
Custom Server). When a service is selected the port ranges
are automatically configured.
Protocol User can select from: TCP, TCP/UDP or UDP.
Internal Port Start Enter the internal port starting number (when you select
Custom Server). When a service is selected the port ranges
are automatically configured
Internal Port End Enter the internal port ending number (when you select
Custom Server). When a service is selected the port ranges
are automatically configured.
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6.3.2 Port Triggering
Some applications require that specific ports in the Router's firewall be opened for
access by the remote parties. Port Trigger dynamically opens up the 'Open Ports' in
the firewall when an application on the LAN initiates a TCP/UDP connection to a
remote party using the 'Triggering Ports'. The Router allows the remote party from
the WAN side to establish new connections back to the application on the LAN side
using the 'Open Ports'. A maximum 32 entries can be configured.
To add a Trigger Port, simply click the Add button. The following will be displayed.
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Select an Application
Or
Custom Application
User should select the application from the list.
Or
User can enter the name of their choice.
Trigger Port Start Enter the starting trigger port number (when you select
custom application). When an application is selected the
port ranges are automatically configured.
Trigger Port End Enter the ending trigger port number (when you select
custom application). When an application is selected the
port ranges are automatically configured.
Trigger Protocol User can select from: TCP, TCP/UDP or UDP.
Open Port Start Enter the starting open port number (when you select
custom application). When an application is selected the
port ranges are automatically configured.
Open Port End Enter the ending open port number (when you select
custom application). When an application is selected the
port ranges are automatically configured.
Open Protocol User can select from: TCP, TCP/UDP or UDP.
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6.3.3 DMZ Host
The DSL router will forward IP packets from the WAN that do not belong to any of
the applications configured in the Virtual Servers table to the DMZ host computer.
Enter the computer's IP address and click "Apply" to activate the DMZ host.
Clear the IP address field and click "Apply" to deactivate the DMZ host.
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6.3.4 ALG
SIP ALG is Application layer gateway. If the user has an IP phone(SIP) or VoIP
gateway(SIP) behind the ADSL router, the SIP ALG can help VoIP packet
passthrough the router (NAT enabled).
Note: SIP (Session Initiation Protocol, RFC3261) is the protocol of choice for most
VoIP (Voice over IP) phones to initiate communication. This ALG is only valid for SIP
protocol running on UDP port 5060.
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6.4 Security
To display the Security function, you need to enable the firewall feature in the WAN
Setup.
6.4.1 IP Filtering
IP filtering allows you to create a filter rule to identify outgoing/incoming IP traffic
by specifying a new filter name and at least one condition below. All of the specified
conditions in this filter rule must be satisfied for the rule to take effect. Click
'Save/Apply' to save and activate the filter.
Outgoing
To add a filtering rule, simply click the Add button. The following screen will be
displayed.
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Filter Name Type a name for the filter rule.
Protocol User can select from: TCP, TCP/UDP, UDP or
ICMP.
Source IP address Enter source IP address.
Source Subnet Mask Enter source subnet mask.
Source Port (port or port:port) Enter source port number.
Destination IP address Enter destination IP address.
Destination Subnet Mask Enter destination subnet mask.
Destination port (port or port:port) Enter destination port number.
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Incoming
To add a filtering rule, simply click the Add button. The following screen will be
displayed.
To configure the parameters, please reference Outgoing
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table above.
6.4.2 Parental Control
Parental control: allows parents, schools, and libraries to set access times for
Internet use.
To add a parental control, simply click the Add button. The following screen will be
displayed.
Username: Input Internet access user name
MAC: Set the MAC address to access the Internet
Mon, Tue, Wed, Thu, Fri, Sat, Sun: Set which days that will have block
restrictions to Internet access
Start, End Blocking Time: Set Internet block start and stop time
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6.5 Quality of Service
To d is pl a y t he Qo S f u n c ti on , you need to enable the QoS feature in the WAN Setup.
Choose Add to configure network traffic classes.
The following screen will be displayed:
65
See below
The screen creates a traffic class rule to classify the upstream traffic, assign queuing
priority and optionally overwrite the IP header TOS byte. A rule consists of a class
name and at least one condition below. All of the specified conditions in this
classification rule must be satisfied for the rule to take effect. Click 'Save/Apply' to
save and activate the rule.
Traffic Class Name Enter name for traffic class.
Enable Differentiated Service
Configuration
Enable Differentiated Service Configuration if
required.
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Assign ATM Transmit Priority Select Low, Medium or High.
Mark IP Precedence Select between 0-7. The lower the digit shows the
higher the priority
If non-blank value is selected for 'Mark IP
Precedence' and/or 'Mark IP Type Of Service', the
corresponding TOS byte in the IP header of the
upstream packet is overwritten by the selected
value.
Note: If Differentiated Service Configuration
checkbox is selected, you will only need to assign
ATM priority. IP Precedence will not be used for
classification. IP TOS byte will be used for DSCP
mark.
IP Type Of Service Select either: Normal Service, Minimize Cost,
Maximize Reliability, Maximize Throughput,
Minimize Delay
If non-blank value is selected for 'Mark IP
Precedence' and/or 'Mark IP Type Of Service', the
corresponding TOS byte in the IP header of the
upstream packet is overwritten by the selected
value.
Note: If Differentiated Service Configuration
checkbox is selected, you will only need to assign
ATM priority. IP Precedence will not be used for
classification. IP TOS byte will be used for DSCP
mark.
Assign Differentiated Services
Code Point (DSCP) Mark
Mark 802.1p if 802.1q is
Choose the required DSCP value. Default value is
“000000”.
Select between 0-7.
enabled on WAN
Specify Traffic Classification Rules
Enter the following conditions either for physical LAN/Wireless port or for IP level,
SET-1, or for IEEE 802.1p, SET-2
SET-1
Physical LAN Port User can select from: ENET, ENET(1-4), USB,
Wireless or Wireless_Guest.
Protocol User can select from: TCP, TCP/UDP, UDP or ICMP.
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Source IP Address Enter the source IP address.
Source Subnet Mask Enter the subnet mask for the source IP address.
Source Port (port or
Enter source port number.
port:port)
Destination IP address Enter destination IP address.
Destination Subnet Mask Enter destination subnet mask.
Destination port (port or
Enter destination port number.
port:port)
SET-2
802.1p Priority Select between 0-7.
Traffic Class Name Enter name for traffic class
Priority Select Low, Medium or High.
IP Precedence Select between 0-7. The lower the digit shows the
higher the priority
Mark IP Type Of Service Select either: Normal Service, Minimize Cost,
Maximize Reliability, Maximize Throughput,
Minimize Delay
Physical LAN Port User can select from: ENET, ENET(1-4), USB,
Wireless or Wireless_Guest.
Protocol User can select from: TCP, TCP/UDP, UDP or ICMP.
Source IP Address Enter the source IP address.
Source Subnet Mask Enter the subnet mask for the source IP address.
Source Port (port or
Enter source port number.
port:port)
Destination IP address Enter destination IP address.
Destination Subnet Mask Enter destination subnet mask.
Destination port (port or
Enter destination port number.
port:port)
802.1p Priority Select between 0-7. The lower the digit shows the
higher the priority
If the Enable Differentiated Service Configuration box is ticked (i.e. selected)
the following screen will be displayed:
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The additional Items are explained here.
Assign Differentiated Services
Code Point (DSCP) Mark
Source MAC Address
The selected Code Point gives the
corresponding priority to the packets that
satisfies the rules set below.
A packet belongs to SET-1, if a binary-AND of
its source MAC address with the Source MAC
Mask is equal to the binary-AND of the Source
MAC Mask and this field.
Source MAC Mask This is the mask used to decide how many
bits are checked in Source MAC Address.
Destination MAC Address A packet belongs to SET-1 then the result
that the Destination MAC Address of its
header binary-AND to the Destination MAC
Mask must equal to the result that this field
binary-AND to the Destination MAC Mask.
Destination MAC Mask: This is the mask used to decide how many
bits are checked in Destination MAC Address.
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6.6 Routing
The Routing dialog box allows you to configure Default gateway, Static Route and
RIP.
6.6.1 Default Gateway
If ‘Enable Automatic Assigned Default Gateway’ checkbox is selected, this
router will accept the first received default gateway assignment from one of the
PPPoA, PPPoE or MER/DHCP enabled PVC(s). If the checkbox is not selected, enter
the static default gateway AND/OR a WAN interface. Click 'Save/Apply' button to
save it.
NOTE: If changing the Automatic Assigned Default Gateway from unselected to
selected, You must reboot the router to get the automatic assigned default gateway.
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6.6.2 Static Route
Choose Static Route to display the Static Route screen. The Static Route screen
lists the configured static routes, and allows configuring static routes. Choose Add
or Remove to configure the static routes.
To add static route, click the Add button to display the following screen. Enter the
destination network address, subnet mask, gateway AND/OR available WAN
interface then click Save/Apply to add the entry to the routing table.
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6.6.3 RIP
To activate RIP for the device, select the 'Enabled' radio button for Global RIP Mode.
To configure an individual interface, select the desired RIP version and operation,
followed by placing a check in the 'Enabled' checkbox for the interface. Click the
'Save/Apply' button to save the configuration, and to start or stop RIP based on the
Global RIP mode selected.
Note: This screenshot is based on PPPoE encapsulation.
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6.7 DNS
6.7.1 DNS Server
If 'Enable Automatic Assigned DNS' checkbox is selected, this router will accept the
first received DNS assignment from one of the PPPoA, PPPoE or MER/DHCP enabled
PVC(s) during the connection establishment. If the checkbox is not selected, enter
the primary and optional secondary DNS server IP addresses. Click 'Save' button to
save the new configuration. You must reboot the router to make the new
configuration effective.
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6.7.2 Dynamic DNS
The Dynamic DNS service allows you to alias a dynamic IP address to a static
hostname in any of the many domains, allowing your DSL router to be more easily
accessed from various locations on the Internet.
To add a dynamic DNS service, simply click the Add button. The following screen will
be displayed:
74
D-DNS provider Select a dynamic DNS provider from the list
Hostname Enter the name for the dynamic DNS server.
Interface Select the interface from the list
Username Enter the username for the dynamic DNS server.
Password Enter the password for the dynamic DNS server.
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6.8 DSL
To access the DSL settings, first click On Advanced Setup and then click on DSL.
The DSL Settings dialog box allows you to select an appropriate modulation mode.
Option Description
Auto Mode
(G.dmt, G.lite or T1.413)
G.dmt/G.lite Sets G.Dmt/G.lite if you want the system to use either
T1.413 Sets the T1.413 if you want the system to use only
ADSL2 Enabled The device can support the functions of the ADSL2.
AnnexL Enabled The device can support/enhance the long loop test.
ADSL2+ Enabled The device can support the functions of the ADSL2+.
AnnexM Covers a higher “upstream” data rate version, by
Inner Pair Reserved only
Outer Pair Reserved only
Bitswap Enable Allows bitswaping function
Sets the system auto-sense between G.Dmt, G.lite, or
T1.413
G.Dmt or G.lite mode.
T1.413 mode.
making use of some of the downstream channels.
SRA Enable Allows seamless rate adaptation
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6.9 Print Server
The CT-5372 is equipped with one high-speed USB2.0 host connection.
With software support, users can connect USB devices such as a printer and hard
disc to the CT-5372. For this software release, printer server is supported.
Please refer to Appendix A for an Example.
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6.10 Port Mapping
Port Mapping supports multiple port to PVC and bridging groups. Each group will
perform as an independent network. To support this feature, you must create
mapping groups with appropriate LAN and WAN interfaces using the Add button.
The Remove button will remove the grouping and add the ungrouped interfaces to
the Default group.
As shown below, when you tick the Enable virtual ports on, all of the LAN interfaces
will be grouped together as a default.
To add a port mapping group, simply click the Add button.
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To create a group from the list, first enter the group name and then select from the
available interfaces on the list.
Automatically Add Clients With the Following DHCP Vendor IDs:
Add support to automatically map LAN interfaces including Wireless and USB to
PVC's using DHCP vendor ID (option 60). The local DHCP server will decline and
send the requests to a remote DHCP server by mapping the appropriate LAN
interface. This will be turned on when PortMapping is enabled.
There are 4 PVCs (0/33, 0/36, 0/37, 0/38). 0/33 is for PPPoE and the others are for
IP setup-box (video).
The Lan interfaces are ETH1, ETH2, ETH3, ETH4, Wireless and USB.
Port mapping configuration are:
1. Default : ENET1, ENET2, ENET3, ENET4, Wireless, Wireless_Guest and USB.
2. Video: nas_0_36, nas_0_37 and nas_0_38. The DHCP vendor ID is "Video".
The CPE's dhcp server is running on "Default". And ISP's dhcp server is running on
PVC 0/36. It is for setup-box use only.
On the LAN side, PC can get IP address from CPE's dhcp server and access internet
via PPPoE (0/33).
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If the setup-box was connected with interface "ENET1" and send a dhcp request
with vendor id "Video", CPE's dhcp server will forward this request to ISP's dhcp
server.
And CPE will change the portmapping configuration automatically. The portmapping
configuration will become:
1. Default : ENET2, ENET3, ENET4, Wireless, Wireless_Guest and USB.
2. Video: nas_0_36, nas_0_37, nas_0_38 and ENET1.
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6.11 IPSec
You can add, edit or remove IPSec tunnel mode connections from this page.
By clicking Add New Connection, you can add a new IPSec termination rule.
The following screen will be displayed.
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IPSec Connection Name User-defined label
Remote IPSec Gateway Address
(IP or Domain Name)
The IP address of remote tunnel Gateway,
and you can use numeric address and
domain name
Tunnel access from local IP
addresses
It chooses methods that specify the
acceptable host IP on the local side. It has
single and subnet.
IP Address for VPN If you choose “single”, please entry the host
IP address for VPN. If you choose “subnet”,
please entry the subnet information for VPN.
Tunnel access from remote IP
addresses
It chooses methods that specify the
acceptable host IP on the remote side. It
has single and subnet.
IP Address for VPN If you choose “single”, please input the host
IP address for VPN. If you choose “subnet”,
please input the subnet information for VPN.
Key Exchange Method It has two modes. One is auto and the other
is manual.
Authentication Method It has either pre-shared key or x.509.
Pre-Shared Key Input Pre-shared key
Perfect Forward Secrecy Enable/disable the method that is Perfect
Forward Secrecy.
Advanced IKE Settings On IPSec Auto mode, you need to choose
the setting of two phases. Click the button
then choose which modes, Encryption
Algorithm, Integrity Algorithm, Select
Diffie-Hellman Group for Key Exchange, key
time on different phases.
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The following is displayed if the Show Advanced Settings button is clicked.
Advanced IKE Settings
Phase 1
Mode Defines the exchange mode for phase 1 when racoon
is the initiator. It also means the acceptable
exchange mode when racoon is responder. The first
exchange mode is what racoon uses when it is the
initiator.
Encryption Algorithm Specify the encryption algorithm used for the phase 1
negotiation. This directive must be defined.
Algorithm is one of following: des,
3des, aes-128(192, 256) for Oakley.
Integrity Algorithm Define the hash algorithm used for the phase 1.
Algorithm is one of following: md5, sha1 for Oakley.
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Select Diffie-Hellman Group
Define the group used for the Diffie-Hellman
for Key Exchange
Key Life Time Define lifetime of the phase 1 SA proposal.
Phase 2
Encryption Algorithm Specify the encryption algorithm used for the phase 2
Integrity Algorithm Define the hash algorithm used for the phase 2.
Select Diffie-Hellman Group
for Key Exchange
exponentiations. This directive must be defined.
group is one of following: modp768, modp1024,
modp1536, modp2048, modp3072, modp4096,
modp6144, modp8192.
When you want to use aggressive mode, you must
define the same DH group in each proposal.
negotiation. This directive must be defined.
Algorithm is one of following: des,
3des, aes-128(192, 256) for Oakley
Algorithm is one of following: md5, sha1 for Oakley
Define the group of Diffie-Hellman exponentiations.
If you do not require PFS then you can omit this
directive.
Any proposal will be accepted if you do not specify
one.
Key Life Time Define how long an IPsec-SA will be used, in time
units. Any proposal will be accepted, and no
attribute(s) will be proposed to the peer if you do not
specify it(them).
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6.12 Certificate
A certificate is a public key, attached with its owner’s information (company name,
server name, personal real name, contact e-mail, postal address, etc) and digital
signatures. There will be one or more digital signatures attached on the certificate,
indicating that these signers have verified that the owner information of this
certificate is correct.
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6.12.1 Local
Click Create Certificate Request to generate a certificate signing request. The
certificate signing request can be submitted to the vendor/ISP/ITSP to apply for a
certificate. Some information must be included in the certificate signing request.
Actually, your vendor/ISP/ITSP will ask you to provide the information they require
and to provide the information in the format they regulate. The explanation for each
column in the following table is only for reference.
Certificate Name A user-defined name for the certificate.
Common Name Usually, it is the fully qualified domain name for the machine.
Organization Name The exact legal name of your organization. Do not abbreviate.
State/Province Name The state or province where your organization is located. It
cannot be abbreviated.
Country/Region
Name
The two-letter ISO abbreviation for your country.
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Click Apply to generate a private key and a certificate signing request.
This page is used to paste the certificate content and the private key provided by
your vendor/ISP/ITSP.
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6.12.2 Trusted CA
CA is the abbreviation for Certificate Authority. CA is a part of the X.509 system. It
is itself a certificate, attached with the owner information of this certificate authority.
But its purpose is not to do encryption/decryption. Its purpose is to sign and issue
certificates; in order to prove the owner information of that certificate is correct.
Click Import Certificate to paste the certificate content of your trusted CA.
Generally speaking, the certificate content will be provided by your vendor/ISP/ITSP
and is used to authenticate the Auto-Configuration Server (ACS) that the CPE will
connect to.
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Chapter 7 Wireless
The Wireless dialog box allows you to enable the wireless capability, hide the access
point, set the wireless network name and restrict the channel set.
7.1 Wireless Basic Screen
The Basic option allows you to configure basic features of the wireless LAN interface.
You can enable or disable the wireless LAN interface, hide the network from active
scans, set the wireless network name (also known as SSID) and restrict the channel
set based on country requirements.
Click Apply to configure the basic wireless options.
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Option Description
Enable Wireless A checkbox that enables or disables the wireless LAN
interface. When selected, the Web UI displays Hide Access
point, SSID, and County settings. The default is Enable
Wireless.
Hide Access Point Select Hide Access Point to protect ADSL router access point
from detection by wireless active scans. If you do not want
the access point to be automatically detected by a wireless
station, this checkbox should be de-selected.
The station will not discover this access point. To connect a
station to the available access points, the station must
manually add this access point name in its wireless
configuration.
In Windows XP, go to the Network>Programs function to view
all of the available access points. You can also use other
software programs such as NetStumbler to view available
access points.
SSID Sets the wireless network name. SSID stands for Service Set
Identifier. All stations must be configured with the correct
SSID to access the WLAN. If the SSID does not match, that
user will not be granted access.
The naming conventions are: Minimum is one character and
maximum number of characters: 32 bytes.
BSSID The BSSID is a 48bit identity used to identify a particular BSS
(Basic Service Set) within an area. In Infrastructure BSS
networks, the BSSID is the MAC (Medium Access Control)
address of the AP (Access Point) and in Independent BSS or ad
hoc networks, the BSSID is generated randomly.
Country A drop-down menu that permits worldwide and specific
national settings. Each county listed in the menu enforces
specific regulations limiting channel range:
US= worldwide
Japan=1-14
Jordan= 10-13
Israel= 1-13
Enable Guest SSID CT-5372 supports multiple SSIDs. Guest SSID is not visible.
The wireless hosts are able to scan main SSID only.
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Guest SSID The BSSID is a 48bit identity used to identify a particular BSS
(Basic Service Set) within an area. In Infrastructure BSS
networks, the BSSID is the MAC (Medium Access Control)
address of the AP (Access Point) and in Independent BSS or ad
hoc networks, the BSSID is generated randomly.
7.1.1 Security
Security options include authentication and encryption services based on the wired
equivalent privacy (WEP) algorithm. WEP is a set of security services used to
protect 802.11 networks from unauthorized access, such as eavesdropping; in this
case, the capture of wireless network traffic. When data encryption is enabled,
secret shared encryption keys are generated and used by the source station and the
destination station to alter frame bits, thus avoiding disclosure to eavesdroppers.
802.11 supports two subtypes of network authentication services: open system and
shared key. Under open system authentication, any wireless station can request
authentication. The system that needs to authenticate with another wireless
station sends an authentication management frame that contains the identity of the
sending station. The receiving station then sends back a frame that indicates
whether it recognizes the identity of the sending station.
Under shared key authentication, each wireless station is assumed to have
received a secret shared key over a secure channel that is independent from 802.11
wireless network communications channel.
The following screen appears when Security is selected. The Security page allows
you to configure security features of the wireless LAN interface. You can set the
network authentication method, selecting data encryption, specify whether a
network key is required to authenticate to this wireless network and specify the
encryption strength.
Click Apply to configure the wireless security options.
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Option Description
Select SSID Sets the wireless network name. SSID stands for Service Set
Identifier. All stations must be configured with the correct SSID to
access the WLAN. If the SSID does not match, that user will not be
granted access.
The naming conventions are: Minimum is one character and
maximum number of characters: 32 bytes.
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Network
It specifies the network authentication. When this checkbox is
Authentication
selected, it specifies that a network key be used for authentication to
the wireless network. If the Network Authentication (Shared mode)
checkbox is not shared (that is, if open system authentication is
used), no authentication is provided. Open system authentication
only performs identity verifications.
Different authentication type pops up different settings requests.
Choosing 802.1X, enter RADIUS Server IP address, RADIUS Port,
and RADIUS key.
Also, enable WEP Encryption and the Encryption Strength.
Select the Current Network Key and enter 13 ASCII characters or 26
hexadecimal digits for 128-bit encryption keys and enter 5 ASCII
characters or 10 hexadecimal digits for 64-bit encryption keys.
Choosing WPA, you must enter WPA Group Rekey Interval.
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Choosing WPA-PSK, you must enter WPA Pre-Shared Key and
Group Rekey Interval.
WEP
Encryption
Encryption
strength
It specifies that a network key is used to encrypt the data is sent over
the network. When this checkbox is selected, it enables data
encryption and prompts the Encryption Strength drop-down menu.
Data Encryption (WEP Enabled) and Network Authentication use the
same key.
A session’s key strength is proportional to the number of binary bits
comprising the session key file. This means that session keys with a
greater number of bits have a greater degree of security, and are
considerably more difficult to forcibly decode. This drop-down
menu sets either a 64 8-bit (5-ASCII character or 10-hexadecimal
character) or 128 8-bit (13-ASCII character or 26-hexadecimal
character) key.
If you set a minimum 128-bit key strength, users attempting to
establish a secure communications channel with your server must
use a browser capable of communicating with a 128-bit session key.
The Encryption Strength settings do not display unless the network
Authentication (shared Mode) check box is selected.
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7.1.2 MAC Filter
This MAC Filter page allows access to be restricted/allowed based on a MAC address.
All NICs have a unique 48-bit MAC address burned into the ROM chip on the card.
When MAC address filtering is enabled, you are restricting the NICs that are allowed
to connect to your access point. Therefore, an access point will grant access to any
computer that is using a NIC whose MAC address is on its “allows” list.
Wi-Fi routers and access points that support MAC filtering let you specify a list of
MAC addresses that may connect to the access point, and thus dictate what devices
are authorized to access the wireless network. When a device is using MAC filtering,
any address not explicitly defined will be denied access.
MAC Restrict mode: Off- disables MAC filtering; Allow – permits access for the
specified MAC address; deny; reject access of the specified MAC address, then click
the SET button.
To delete an entry, select the entry at the bottom of the screen and then click the
Remove button, located on the right hand side of the screen.
To add a MAC entry, click Add and enter MAC address
After choosing the Add button, the following screen appears. Enter the MAC
address and click Apply to add the MAC address to the wireless MAC address filters.
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Option Description
MAC Restrict Mode Radio buttons that allow settings of;
Off: MAC filtering function is disabled.
Allow: Permits PCs with listed MAC addresses to connect to
the access point.
Deny: Prevents PCs with listed MAC from connecting to the
access point.
MAC Address Lists the MAC addresses subject to the Off, Allow, or Deny
instruction. The Add button prompts an entry field that
requires you type in a MAC address in a two-character,
6-byte convention: xx:xx:xx:xx:xx:xx where xx are
hexadecimal numbers. The maximum number of MAC
addresses that can be added is 60.
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7.1.3 Wireless Bridge
This page allows you to configure wireless bridge features of the wireless LAN
interface. You can select Wireless Bridge (also known as Wireless Distribution
System) to disable access point functionality. Selecting Access Point enables access
point functionality. Wireless bridge functionality will still be available and wireless
stations will be able to associate to the AP. Select Disabled in Bridge Restrict, which
disables wireless bridge restriction. Any wireless bridge will be granted access.
Selecting Enabled or Enabled (Scan) enables wireless bridge restriction. Only those
bridges selected in Remote Bridges will be granted access.
Option Description
AP Mode Access Point
Wireless Bridge
Bridge Restrict Enabled
Enabled (Scan)
Disabled
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7.1.4 Advanced
The Advanced page allows you to configure advanced features of the wireless LAN
interface.
You can select a particular channel on which to operate, force the transmission rate
to a particular speed, set the fragmentation threshold, set the RTS threshold, set
the wakeup interval for clients in power-save mode, set the beacon interval for the
access point, set XPress mode and set whether short or long preambles are used.
Click Apply to configure the advanced wireless options.
Option Description
AP Isolation Select On or Off. By enabling this feature, wireless clients
associated with the Access Point will b e able t o conne c t to eac h
other.
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The new amendment allows IEEE 802.11g units to fall back to
Band
speeds of 11 Mbps, so IEEE 802.11b and IEEE 802.11g devices
can coexist in the same network. The two standards apply to
the 2.4 GHz frequency band. IEEE 802.11g creates data-rate
parity at 2.4 GHz with the IEEE 802.11a standard, which has a
54 Mbps rate at 5 GHz. (IEEE 802.11a has other differences
compared to IEEE 802.11b or g, such as offering more
channels.)
Channel Drop-down menu that allows selection of a specific channel.
Auto Channel Timer
Auto channel scan timer in minutes (0 to disable)
(min)
54g Rate Drop-down menu that specifies the following fixed rates:
Auto: Default. Uses the 11 Mbps data rate when possible but
drops to lower rates when necessary.
1 Mbps, 2Mbps, 5.5Mbps, or 11Mbps fixed rates. The
appropriate setting is dependent on signal strength.
Multicast Rate Setting multicast packet transmit rate.
Basic Rate Setting basic transmit rate.
Fragmentation
Threshold
A threshold, specified in bytes, that determines whether
packets will be fragmented and at what size. On an 802.11
WLAN, packets that exceed the fragmentation threshold are
fragmented, i.e., split into, smaller units suitable for the circuit
size. Packets smaller than the specified fragmentation
threshold value are not fragmented.
Enter a value between 256 and 2346.
If you experience a high packet error rate, try to slightly
increase your Fragmentation Threshold. The value should
remain at its default setting of 2346. Setting the
Fragmentation Threshold too low may result in poor
performance.
RTS Threshold Request to Send, when set in bytes, specifies the packet size
beyond which the WLAN Card invokes its RTS/CTS mechanism.
Packets that exceed the specified RTS threshold trigger the
RTS/CTS mechanism. The NIC transmits smaller packet
without using RTS/CTS.
The default setting of 2347 (maximum length) disables RTS
Threshold.
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