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

PDF

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

Limitations for DHCP relay

Updated: August 12, 2026

Want to summarize with AI?

Log in

This topic lists the limitations that apply to the DHCP relay feature on the Cisco 8000 Series Router.

These limitations apply to the DHCP relay feature:

  • The DHCP relay profile does not support multicast addresses. The helper-address command in a DHCP relay profile submode supports a global unicast IP address only as the helper address.

  • Relay agents add only interface-id and remote-id DHCP option code while forwarding the packet to a DHCP server.

  • DHCP relay profile submode does not support the configuration of DHCP option code.