Glossary

NOTE: If a neighboring node does not have an IPv6 address assigned, it must be manually pinged to allow the IPv6 device
to determine the relationship of the neighboring node.
NOTE: To avoid problems with network discovery, Dell EMC Networking recommends configuring the static route last or
assigning an IPv6 address to the interface and assigning an address to the peer (the forwarding router’s address) less than
10 seconds apart.
With ARP, each node broadcasts ARP requests on the entire link. This approach causes unnecessary processing by uninterested
nodes. With NDP, each node sends a request only to the intended destination via 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 61. 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
Configuring the IPv6 Recursive DNS Server
You can configure up to four Recursive DNS Server (RDNSS) addresses to be distributed via IPv6 router advertisements to an
IPv6 device, using the ipv6 nd dns-server ipv6-RDNSS-address {lifetime | infinite} command in
INTERFACE CONFIG mode.
IPv6 Routing
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