edgeadmin@EdgeRouter# show firewall name WAN_LAN
 default-action drop
 description "WAN to LAN"
 rule 10 {
     action accept
     state {
         established enable
         invalid disable
         new disable
         related enable
     }
 }
 rule 20 {
     action drop
     description "Drop invalid"
     state {
         invalid enable
     }
 }