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IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, IOS XR Release 25.1.x, 25.2.x, 25.3.x, 25.4.x

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Updated:: December 17, 2025

Chapter: New and Changed IP Addresses and Services Features

New and Changed IP Addresses and Services Features
IP Addresses and Services Features Added or Modified in IOS XR Release 25.x.x

New and Changed IP Addresses and Services Features

This table summarizes the new and changed feature information for the IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, and tells you where they are documented.

IP Addresses and Services Features Added or Modified in IOS XR Release 25.x.x

IP Addresses Features Added or Modified in IOS XR Release 25.x.x

Table 1. New and Changed Features
Feature	Description	Changed in Release	Where Documented
Suppression of IPv6 ND RA messages and enabling unicast RA messages	This feature was introduced.	Release 25.4.1	Suppression of IPv6 ND RA messages and enabling unicast RA messages
Egress hybrid ACL support to A100-based and K100-based ASICs	This feature was introduced.	Release 25.4.1	Hybrid ACLs
Extend support for ACLs on BVI to K100-based ASICs	This feature was introduced.	Release 25.4.1	ACLs for Bridged Virtual Interfaces
Enhanced ICMP error messages fortraceroute	This feature was introduced.	Release 25.4.1	Enhanced ICMP error messages for traceroute
ICMP PROBE Utility	This feature was introduced.	Release 25.4.1	ICMP probe utility
Unified CEF error counters	This feature was introduced.	Release 25.4.1	Unified CEF error counters
Configure DHCPv6 relay source address	This feature was introduced.	Release 25.1.1	Configure DHCPv6 relay source address
Displaying TCAM for source prefixes	This feature was introduced.	Release 25.1.1	Hybrid ACLs
Extending egress hybrid ACL support to P100-based ASICs	This feature was introduced.	Release 25.1.1	Hybrid ACLs
Option 82 support in DHCP packets	This feature was introduced.	Release 25.1.1	Configuring Relay Agent Option 82 Per Ethernet Flow Points
Support for DHCP Client	This feature was introduced.	Release 25.1.1	DHCP Client

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