Configure IPv6 Router Advertisement Preference

IPv6 router advertisement preference improves the ability of IPv6 hosts to select an appropriate router for a remote destination.

About this task

An IPv6 host uses the preference value in an advertisement to determine the default router to use to reach a destination. A preference value can be low, medium, or high.

Procedure

Access global configuration mode.
```
device# configuration terminal
```
Access interface configuration mode.
```
device(config)# interface ethernet 0/1
```
Configure router advertisement preference for the IPv6 router.
```
device(conf-if-eth-0/1)# ipv6 nd router-preference medium
```