IPv6 Routing Commands 785
The ipv6 nd prefix command will allow you to preconfigure RA prefix values
before you configure the associated interface address. In order for the prefix
to be included in RAs, you must configure an address that matches the prefix
using the ipv6 address command. Prefixes specified using ipv6 nd prefix
without an associated interface address will not be included in RAs and will
not be committed to the device configuration.
Example
The following example sets the IPv6 prefixes to include in the router
advertisement.
console(config)#interface vlan 11
console(config-if-vlan11)#ipv6 nd prefix 2020:1::1/64
ipv6 nd ra-interval
Use the ipv6 nd ra-interval command in Interface Configuration mode to set
the transmission interval between router advertisements.
Syntax
ipv6 nd ra-interval
maximum
minimum
no ipv6 nd ra-interval
•
maximum
— The maximum interval duration (Range: 4–1800 seconds).
•
minimum
— The minimum interval duration (Range: 3 – (0.75 *
maximum) seconds).
Default Configuration
600 is the default value for
seconds
.
Command Mode
Interface Configuration (VLAN, Tunnel, Loopback) mode
User Guidelines
The minimum interval cannot be larger than 75% of the maximum interval.
