Configuring IPv6 Routing 1061
ipv6 nd ra-interval 
maximum
 
minimum
Set the transmission interval between router advertisements.
•
maximum
 — The maximum interval duration (Range: 
4–1800 seconds).
•
minimum
 — The minimum interval duration (Range: 3 – 
(0.75 * maximum) seconds).
ipv6 nd ra-lifetime 
seconds
Set the value that is placed in the Router Lifetime field of 
the router advertisements sent from the interface.
The 
seconds 
value must be zero, or it must be an integer 
between the value of the router advertisement transmission 
interval and 9000 seconds. A value of zero means this router 
is not to be used as the default router. (Range: 0-9000).
ipv6 nd suppress-ra Suppress router advertisement transmission on an interface.
ipv6 nd dad attempts 
value
Set the number of duplicate address detection probes 
transmitted while doing neighbor discovery. 
The range for 
value 
is 0–600.
ipv6 nd ns-interval 
milliseconds
Set the interval between router advertisements for advertised 
neighbor solicitations. The range is 1000 to 4294967295 
milliseconds.
ipv6 nd other-config-
flag
Set the 
other stateful configuration
 flag in router 
advertisements sent from the interface.
ipv6 nd managed-
config-flag
Set the 
managed address configuration
 flag in router 
advertisements. When the value is true, end nodes use 
DHCPv6. When the value is false, end nodes automatically 
configure addresses.
ipv6 nd reachable-
time 
milliseconds
Set the router advertisement time to consider a neighbor 
reachable after neighbor discovery confirmation.
ipv6 mtu 
size
(VLAN interfaces only) Set the IPv6 Maximum 
Transmission Unit (MTU) on a routing interface. The IPv6 
MTU is the size of the largest IPv6 packet that can be 
transmitted on the interface without fragmentation. The 
range is 1280–1500 bytes.
ipv6 unreachables  (VLAN interfaces only) Allow the interface to send ICMPv6 
Destination Unreachable messages. 
CTRL + Z Exit to Privileged EXEC mode.
Command Purpose