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Contents

iii

6371-A2-GB20-00

March 2000

Diagnostics and Troubleshooting

Diagnostics and Troubleshooting Overview

6-1

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Device Restart

6-1

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Alarms Inquiry

6-1

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System Log

6-2

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SYSLOG Events

6-3

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SYSLOG Message Display

6-4

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PING

6-5

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PING Test Results

6-5

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TraceRoute

6-6

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TraceRoute Test Results

6-6

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Command Line Interface

Command Line Interface Feature

A-1

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Navigation

A-1

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Document Conventions

A-2

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Command Line Interface Commands

A-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Control Commands

A-2

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Ethernet Frame Format

A-3

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Interface and Service Domain IP Address

A-3

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IP Routing Table

A-4

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ARP Table

A-6

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Proxy ARP

A-6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NAT

A-7

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DHCP Server

A-9

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DHCP Relay Agent

A-10

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IP Packet Processing

A-10

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Show Command Outputs

A-11

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Configuration Defaults & Command Line Shortcuts

Configuration Default Settings

B-1

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Command Line Input Shortcuts

B-3

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DSL Router Terminal Emulation

DSL Router Terminal Emulation

C-1

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Accessing the List Command Output

C-1

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Terminal Emulation Programs

C-2

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Index

Содержание Hotwire 6321/6322 IDSL Router

Страница 1: ...HOTWIREr DSL ROUTERS USER S GUIDE Document No 6371 A2 GB20 00 March 2000...

Страница 2: ...local sales representative service representative or distributor directly for any help needed For additional information concerning warranty sales service repair installation documentation training di...

Страница 3: ...L Router System 1 2 H Hotwire DSL Router Features 1 3 H Service Subscriber 1 3 2 Accessing the DSL Router H Access Control to the DSL Router 2 1 Levels of Access 2 1 Changing Access Session Levels 2 2...

Страница 4: ...ranslation NAPT 3 6 Applications Supported by NAT 3 6 Dynamic Host Configuration Protocol DHCP Server 3 7 DHCP Relay Agent 3 7 IP Filtering 3 8 4 DSL Router Configuration Examples H Configuration Exam...

Страница 5: ...Document Conventions A 2 H Command Line Interface Commands A 2 Configuration Control Commands A 2 Ethernet Frame Format A 3 Interface and Service Domain IP Address A 3 IP Routing Table A 4 ARP Table...

Страница 6: ...Contents iv 6371 A2 GB20 00 March 2000 This page intentionally left blank...

Страница 7: ...71 RADSL Router This document is intended for administrators and operators who maintain the endpoints at customer premises A basic understanding of internetworking protocols and their features is assu...

Страница 8: ...twire system Chapter 6 Diagnostics and Troubleshooting Describes common Hotwire operational problems and solutions Contains SysLog information Appendix A Command Line Interface Provides explanation of...

Страница 9: ...Instructions 6371 A2 GN10 Hotwire 6371 Rate Adaptive DSL Router Installation Instructions 8000 A2 GB22 Hotwire Management Communications Controller MCC Card IP Conservative User s Guide 8000 A2 GB26 H...

Страница 10: ...esent an optional element Braces represent a required entry Vertical bar separates mutually exclusive elements Italics Entry is a variable to be supplied by the operator Bold Enter type as shown x x x...

Страница 11: ...eater or digital facilities Data rates of 64 kbps 128 kbps or 144 kbps can be configured H Hotwire RADSL Rate Adaptive DSL products are applicable for both asymmetric and symmetric applications The 1...

Страница 12: ...4 port Ethernet hub H The Hotwire 8343 or 8344 Packet SDSL Cards interoperate with two Hotwire Symmetric DSL Routers Hotwire 6341 SDSL Router with one Ethernet port Hotwire 6342 SDSL Router with a 4...

Страница 13: ...s an interface for configuring and managing the DSL router Service Subscriber The Service Subscriber is the user or set of users that has contracted to receive networking services e g Internet access...

Страница 14: ...Introduction to Hotwire DSL Routers 1 4 6371 A2 GB20 00 March 2000 This page intentionally left blank...

Страница 15: ...security to the DSL system configure a login ID and password Levels of Access There are two levels of privileges on the Hotwire DSL system Your user account can be configured with a user name passwor...

Страница 16: ...eir access level To determine the level of access for a session refer to Determining the Current Access Level on page 2 4 Local Console Access The DSL router ships with the local console enabled After...

Страница 17: ...the password prompt for Administrator type the default password abc123 and press Enter 5 The system identity will change to the Administrator display mode of CUSTOMER Type configure terminal and press...

Страница 18: ...conflict Telnet Access The Telnet access defaults to Administrator level If the login is at the Operator level then Operator level access is available Telnet access is always enabled Determining the...

Страница 19: ...e and captures all command strings in the text file for use with a terminal emulation program Refer to Appendix C DSL Router Terminal Emulation Changing the System Identity Procedure To change the Sys...

Страница 20: ...configuration updates must be saved or the updates will be lost At the Local console and logged in at the Administrator level non configuration mode You are placed at the Operator level At the Local...

Страница 21: ...L router supports Internet Protocol as specified in RFC 791 and Internet Control Message Protocol ICMP as specified in RFCs 792 and 950 The DSL router acts as a router or gateway as defined in RFC 791...

Страница 22: ...ur Ethernet connectors The hub acts as a bit level repeater There is logically one Ethernet communications interface and one single collision domain H All DSL routers have an Ethernet interface with a...

Страница 23: ...cal network than the hosts Actions required to configure the DSL router interfaces in this scenario H Assign IP address to Ethernet interface e0 H Assign IP address to DSL interface d0 H Assign upstre...

Страница 24: ...rk environments The following sections provide descriptions of some of the DSL router features H Address Resolution Protocol ARP H Proxy ARP H Network Address Translation NAT Basic NAT Network Address...

Страница 25: ...ES When Basic NAT is enabled the DSL d0 interface must have Proxy ARP enabled if the d0 interface address is part of the Basic NAT global IP network address Proxy ARP and NAPT cannot be enabled at the...

Страница 26: ...han 254 clients can use Basic NAT but not simultaneously Network Address Port Translation NAPT NAPT allows multiple clients in a local network to simultaneously access remote networks using a single I...

Страница 27: ...ust be enabled H The DHCP server domain name can be configured This is optional H The Domain Name Server DNS IP address can be configured This is optional H The minimum and maximum lease time settings...

Страница 28: ...ddresses IP packets can be filtered based on H Destination IP Address H IP Protocol Type H Source and Destination Port Number if applicable H Source IP Address H TCP Filter prevents the receipt of dow...

Страница 29: ...amples include H Basic Configuration H Basic NAT H NAPT H Unnumbered DSL Interface with Proxy ARP H DHCP Relay with Proxy ARP H DHCP Server with Basic NAT H Downstream Router Refer to Appendix A Comma...

Страница 30: ...tatically assigned public IP addresses configured on the Ethernet side of the DSL router H The IP addresses of the clients are contained within the subnet specified by the configured Ethernet IP addre...

Страница 31: ...NAT example H NAT is used for one to one mapping of addresses H There are four private IP addresses configured on the Ethernet side of the DSL router with NAT static mappings to four public IP addres...

Страница 32: ...rt n 10 1 3 3 155 1 3 2 Port n 10 1 3 n In this NAPT example H The DSL router is configured for NAPT using a single public IP address H When using NAPT the DSL d0 interface must be numbered because th...

Страница 33: ...r as the next hop router in order to create the LAN extension configuration H The DSL interface is unnumbered in this configuration H If Basic NAT is enabled the DSL d0 interface must have Proxy ARP e...

Страница 34: ...IP address assignment and use the core router as the next hop router in order to create the LAN extension configuration H The DSL d0 interface is unnumbered in this configuration H The clients the Eth...

Страница 35: ...le H The clients are using dynamic IP address assignment and use the Ethernet e0 interface of the DSL router as the next hop router H The DSL d0 interface must be numbered H The DSL router is configur...

Страница 36: ...ort Connection DSL Core Router d0 155 1 3 2 WAN 155 1 3 1 e0 120 26 7 5 Ethernet In this downstream router example H There are clients statically configured and connected to the DSL router H There are...

Страница 37: ...outer can detect and report problem conditions and the user can perform diagnostic tests The DSL router offers a number of indicators to alert you to possible problems H LEDs provide status Refer to S...

Страница 38: ...hernet LED MAC address xx xx xx xx xx xx proxy ARP e0 enabled disabled ifn e0 1 ip addr x x x x mask x x x x ifn e0 2 ip addr x x x x mask x x x x ifn e0 3 ip addr x x x x mask x x x x ifn e0 4 ip add...

Страница 39: ...frames discarded for each specific Discard Reason Refer to Table 5 1 Discard Reasons for the Ethernet Interface e0 Information displayed for show statistics d0 H Service Domain Statistics end user tr...

Страница 40: ...atistics e0 List of Discard Reasons The Discard Statistics represents the number of frames or packets discarded The display includes the reason for the discard The following tables list discard reason...

Страница 41: ...Unsupported SNAP Network Protocol Unsupported TypeII Network Protocol Table 5 2 Discard Reasons for the DSL Interface d0 1 of 2 Discard Reasons for the DSL Interface d0 Alignment Error Mgmt Domain Ph...

Страница 42: ...easons for IP Discard Reasons for IP Bad Port to Destination Bad Port to Source DSL Receive Packets Filtered DSL Transmit Packets Filtered Ethernet Receive Packets Filter Ethernet Transmit Packets Fil...

Страница 43: ...ice Restart The DSL router can be restarted locally or remotely From the Command Line Interface type Restart and press Enter The DSL router reinitializes itself performing a power on self test and res...

Страница 44: ...LOG is cleared upon restart Events are classified by severity level and the system administrator can specify the minimum severity to be logged show syslog Displays the current status of system as enab...

Страница 45: ...lays the contents of the local system error log The 100 most recent SYSLOG entries are kept locally The user specifies how many entries they wish to view Entries are displayed in reverse order from mo...

Страница 46: ...tem started INFO Informational ti ARP table entry created due to packet arrival reporting ARP table entry created for DHCP address assignment ARP table entry deleted due to time out Device information...

Страница 47: ...device to PING source ip The source IP address to be used The default source address is from the service domain in which the test is being done The IP address is validated to verify that it is an inte...

Страница 48: ...source IP address used The default source address is from the service domain in which the test is being done The IP address is validated to verify that it is an interface IP address bytes Bytes of dat...

Страница 49: ...by setting configuration values H Restore all configuration values to the initial factory defaults H Display DSL router hardware and identification information H Display system status including DSL li...

Страница 50: ...ll changes entered by the Administrator are made on top of the current running configuration When finished entering the commands needed to configure the DSL router the save command must be input to sa...

Страница 51: ...ne whose IP address will be used as a Router ID If no interface is defined as Primary the last numbered interface created will become the Primary IP Address unnumbered Specifies that the DSL interface...

Страница 52: ...laced in the table by the DHCP server the DHCP relay or manually entered static entries NOTE An interface route is created automatically when an address and mask are assigned to an Ethernet interface...

Страница 53: ...router used to reach the remote destination NOTE When the DSL interface is configured for numbered mode the next hop router IP address must fall into one of the service domain IP subnets configured f...

Страница 54: ...Config create Create an ARP table entry delete Delete an ARP table entry ip address The IP address of the ARP entry to be created or deleted mac address MAC address valid for create command Examples a...

Страница 55: ...128 1 1 102 nat timeout time Specifies the NAT timeout values for mapping set up dynamically Minimum access level Administrator Config time The timeout value in minutes Default 60 minutes Example nat...

Страница 56: ...delete udp tcp port Deletes static mapping entries which identify a local server Minimum access level Administrator Config udp tcp Specify the protocol used port The port number associated with the se...

Страница 57: ...e DHCP address range is changed all binding entries and dynamic routes are removed Minimum access level Administrator Config Example dhcp server address 132 53 4 2 132 53 4 350 dhcp server leasetime m...

Страница 58: ...ress Use this command to specify the DHCP server to forward DHCP requests to Minimum level access Administrator Config Example dhcp relay address 132 23 4 2 IP Packet Processing IP multicast enable di...

Страница 59: ...RP d0 enabled disabled NAT disabled or NAT enabled basic NAT NAPT DHCP server enabled disabled DHCP relay enabled disabled IP multicast enabled disabled IP processing enabled disabled show ip route ip...

Страница 60: ...ries show arp timeout ARP timeout for completed ARP table entries nn minutes ARP timeout for incomplete ARP table entries nn seconds show nat basic Sample show nat basic display NAT basic disabled ena...

Страница 61: ...er ip addr x x x x upper ip addr x x x x DHCP server leasetime minimum minutes xxxx maximum minutes xxxx DHCP server bindings ip addr MAC address leasetime minutes x x x x xx xx xx xx xx xx nnnn show...

Страница 62: ...Command Line Interface A 14 6371 A2 GB20 00 March 2000 This page intentionally left blank...

Страница 63: ...tion Factory Default Setting ARP cache entries purged ARP timeout for complete entries 20 minutes ARP timeout for incomplete entries 5 seconds console access locally enabled d0 interface IP address DS...

Страница 64: ...ed NAT basic static IP address mappings purged NAT IP address purged NAT NAPT static port mappings purged NAT timeout 20 minutes password abc123 ping data size 64 bytes ping time out 10 seconds proxy...

Страница 65: ...relay disable enable dhcp relay address ip addr dhcp server disable enable dhcp server address lower ip upper ip ip mask dhcp server leasetime min time max time dhcp server name name dhcp server names...

Страница 66: ...enable nat napt map udp tcp server ip port nat purge nat timeout time password admin operator password ping dest ip mgt x source_ip l bytes w time proxy arp d0 e0 disable enable restart save show ala...

Страница 67: ...set to 8 H Parity set to None H Stop bits set to 1 H Flow control set to Off or None Accessing the List Command Output Use the list confg command to output command strings needed to restore the curren...

Страница 68: ...n to VT100 5 Select the Terminal Setup button and set to 132 column mode 6 Select OK to exit Terminal Setup 7 Select the ASCII Setup button Set Line delay to 50 ms Set Character delay to 2 ms 8 Select...

Страница 69: ...3 customer system identity 2 3 D d0 DSL interface 3 1 DSL interface statistics 5 2 daemon for SYSLOG 6 2 data rates for DSL routers 1 3 delete ip route A 4 destination IP address 3 8 A 4 device resta...

Страница 70: ...em events 6 2 login ID 2 3 logout automatically 2 6 M MAC address in ARP table A 6 mapping NAT function 4 3 A 7 messages from SYSLOG 6 3 monitoring DSL router 5 1 N nameserver DHCP server A 9 NAPT 3 6...

Страница 71: ...ervice subscriber 1 3 shortcuts for command line B 3 show alarms 6 1 commands A 11 SYSLOG 6 2 source IP address 3 8 statistics 5 1 clearing 5 4 status of interfaces 5 2 Symmetric DSL 6341 6342 DSL rou...

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