Disabling router advertisement and solicitation messages

Router advertisement and solicitation messages enable a node on a link to discover the routers on the same link. By default, router advertisement and solicitation messages are permitted on the device. To disable these messages, configure an IPv6 access control list that denies them. The following shows an example configuration.

device(config)# ipv6 access-list rtradvert
device(config-ipv6-access-list rtradvert)# deny icmp any any router-advertisement
device(config-ipv6-access-list rtradvert)# deny icmp any any router-solicitation
device(config-ipv6-access-list rtradvert)# permit ipv6 any any