Users Guide

a multicast address with the unicast address used as the last 24 bits. Other hosts on the link do not participate
in the process, greatly increasing network bandwidth efficiency.
Figure 50. NDP Router Redirect
IPv6 Neighbor Discovery of MTU Packets
You can set the MTU advertised through the RA packets to incoming routers, without altering the actual MTU
setting on the interface.
The ipv6 nd mtu command sets the value advertised to routers. It does not set the actual MTU rate. For
example, if you set
ipv6 nd mtu to 1280, the interface still passes 1500-byte packets, if that is what is set
with the mtu command.
Configuration Task List for IPv6 RDNSS
This section describes how to configure the IPv6 Recursive DNS Server.
This sections contains the following configuration task list for IPv6 RDNSS:
• Configuring the IPv6 Recursive DNS Server
• Debugging IPv6 RDNSS Information Sent to the Host
• Displaying IPv6 RDNSS Information
IPv6 Routing 450