Commands to enable IPv6 routing automatically
Enabling IPv6 routing automatically enables RA transmission on all IP routing interface where it has not been suppressed with one of the following commands:
Global Config Context:
Switch(config)# ipv6 nd suppress-ra
VLAN Config Context:
Switch(vlan-1)# ipv6 nd ra suppress
Tunnel Config Context:
Switch(tunnel-3)# ipv6 nd ra suppress