Cisco Systems OL-14361-01 manual Configuring Additional Router Features, Contents

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C H A P T E R 5

Configuring Additional Router Features

This chapter contains instructions and information for entering basic configurations using the command-line interface (CLI).

Contents

Configuring the Domain Name and Domain Name Server, page 5-103

Configuring Telnet, HTTP, and XML Host Services, page 5-106

Managing Configuration History and Rollback, page 5-108

Configuring Logging and Logging Correlation, page 5-114

Creating and Modifying User Accounts and User Groups, page 5-117

Configuring Software Entitlement, page 5-121

Configuration Limiting, page 5-121

Configuring the Domain Name and Domain Name Server

Configure a domain name and domain name server (DNS) for your router to make contacting other devices on your network more efficient. Use the following guidelines:

To define a default domain name that the Cisco IOS XR software uses to complete unqualified hostnames (names without a dotted-decimal domain name), use the domain-namecommand in global configuration mode.

To specify the address of one or more name servers to use for name and address resolution, use the domain name-servercommand in global configuration mode. If no name server address is specified, the default name server is 255.255.255.255 so the DNS lookup can be broadcast to the local network segment. If a DNS server is in the local network, it replies. If not, there might be a server that knows how to forward the DNS request to the correct DNS server.

Use the show hosts command in EXEC mode to display the default domain name, the style of name lookup service, a list of name server hosts, and the cached list of hostnames and addresses.

 

 

Cisco IOS XR Getting Started Guide

 

 

 

 

 

 

 

OL-14361-01

 

 

5-103

 

 

 

 

 

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Contents Contents Configuring Additional Router FeaturesConfigure Command or Action PurposeExample 104105 Related Topic Document TitleEnd CommitPrerequisites Configuring Telnet, HTTP, and XML Host Services106 Telnet ipv4 server max-servers limit 107Telnet ipv6 server max-servers limit Http serverRP/0/RP0/CPU0routerconfig# telnet ipv6 server max-servers Managing Configuration History and Rollback108 Displaying the CommitIDs Displaying the Configuration Changes Recorded in a CommitID109 Rolling Back the Configuration to a Specific Rollback Point Previewing Rollback Configuration ChangesRP/0/RP1/CPU0router# show configuration rollback changes to 110RP/0/RP0/CPU0router# rollback configuration last RP/0/RP1/CPU0router# rollback configuration to111 112 RP/0/RP1/CPU0router# show configuration commit changes ?113 Deleting CommitIDsLogging Destination Command Global Configuration Mode Configuring Logging and Logging CorrelationLogging Locations and Severity Levels Level DescriptionConfiguring Basic Message Logging Alarm Logging Correlation115 Logging trap severityLogging console severity 116Show logging 117 Disabling Console Logging118 Command DescriptionCreating Users and Assigning Groups Configuring User Accounts119 Secret 0 5 password Password 0 7 password120 Username user-nameConfiguration Limiting Configuring Software Entitlement121 IS-IS Configuration Limits Static Route Configuration Limits122 Description Limit Router Configuration Mode Exec Mode OSPFv2 and v3 Configuration Limits123 124 Maximum Interfaces for Each Ospf Instance Example125 BGP Configuration Limits126 Maximum paths127 Routing Policy Language Line and Policy Limits128 Default Absolute Maximum Show Current Settings Multicast Configuration LimitsLimit Configuration Command Command Exec Mode 129Other Configuration Limits Mpls Configuration Limits130