+ table filter {
+ chain INPUT {
+ policy ACCEPT;
+ mod state state (ESTABLISHED RELATED) ACCEPT;
+ interface lo ACCEPT;
+ proto icmp ACCEPT;
+ # some of our hosts (e.g. villa and lobos) do ipv6 via tunnels (proto 41)
+ # this requires we allow proto ipv6 to work in all cases.
+ # without this, ipv6 connectivity only works once the host itself
+ # created some ipv6 connectivity to some place.
+ proto ipv6 ACCEPT;
+ mod state state (INVALID) DROP;
+ }
+ }