interface eth1.21 { AdvSendAdvert on; MinRtrAdvInterval 3; MaxRtrAdvInterval 15; AdvDefaultPreference low; AdvHomeAgentFlag off; prefix 2001:67c:21bc:30::/64 { AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; RDNSS 2001:67c:21bc:30::1 { AdvRDNSSLifetime 30; }; }; interface eth1.22 { AdvSendAdvert on; MinRtrAdvInterval 3; MaxRtrAdvInterval 15; AdvDefaultPreference low; AdvHomeAgentFlag off; prefix 2001:67c:21bc:31::/64 { AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; RDNSS 2001:67c:21bc:31::1 { AdvRDNSSLifetime 30; }; };