IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, IOS XR Releases

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IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, IOS XR Releases

Configure a DHCP relay profile with multiple helper addresses

Updated: August 12, 2026

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This topic describes how to configure a DHCP relay profile with multiple helper addresses on the Cisco 8000 Series Router. You can configure up to 16 IPv4 and IPv6 helper addresses for a DHCPv4 or DHCPv6 relay profile.

Configure the DHCPv6 relay profile with multiple helper addresses and verify the configuration.

Procedure

  1. Enter the DHCPv4 or DHCPv6 configuration mode.

    Example:

    Router(config)# dhcp ipv6

  2. Configure the DHCPv4 or DHCPv6 relay profile.

    Example:

    Router(config-dhcpv6)# profile helper relay

  3. Configure the helper addresses.

    Note

    You can configure up to 16 IPv4 and IPv6 addresses.

    Example:

    Router(config-dhcpv6-relay-profile)# helper-address vrf default 2001:1:1::2

  4. Confirm your configuration.

    Example:

    Router(config-dhcpv6-relay-profile)# show configuration
!! IOS XR Configuration 0.0.0
dhcp ipv6
 profile helper relay
  helper-address vrf default 2001:1:1::2
 !
!
end

  5. Commit your configuration.

    Example:

    Router(config-dhcpv6-relay-profile)# commit

  6. Exit the configuration mode.

    Example:

    Router(config-dhcpv6-relay-profile)# exit
    You have successfully configured the DHCPv6 relay helper address.