Interfaces and Hardware Component Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

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Interfaces and Hardware Component Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

Configure virtual IPv4 interfaces

Updated: September 8, 2026

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This topic describes how to configure an IPv4 virtual address for the management Ethernet interface on the Cisco 8000 Series Router so that you can access the router from a single virtual address that persists across route processor (RP) failover.

Configure an IPv4 virtual address so that you can access the router from a single virtual address on the management network, without prior knowledge of which RP is active.

Procedure

  1. Enter global configuration mode using the configure command.

    Example:

    Router# configure

  2. Define an IPv4 virtual address for the management Ethernet interface.

    Example:

    Router(config)# ipv4 virtual address 10.3.32.154/8

  3. Save the configuration changes using the end or commit command.

    Example:

    Router(config)# end

    When you issue the end command, the system prompts you to commit changes:

    Uncommitted changes found, commit them before exiting(yes/no/cancel)?
[cancel]:

    • Entering yes saves configuration changes to the running configuration file, exits the configuration session, and returns the router to EXEC mode.

    • Entering no exits the configuration session and returns the router to EXEC mode without committing the configuration changes.

    • Entering cancel leaves the router in the current configuration session without exiting or committing the configuration changes.

    • Use the commit command to save the configuration changes to the running configuration file and remain within the configuration session.