Subject: Routing from and to the internet

This is from my working ER4 (Ubiquity EdgeRouter)
-----------------------------

firewall modify SOURCE_ROUTE {
         rule 10 {
             action modify
             description "traffic to ampr"
             modify {
                 table 5
             }
             source {
                 address 44.131.252.64/28
             }
         }
     }

firewall  name 44Net_IN {
         default-action drop
         description "44Net in"
         rule 10 {
             action accept
             description "Allow established/related"
             log disable
             state {
                 established enable
                 related enable
             }
         }
         rule 20 {
             action accept
             description ICMP
             log disable
             protocol icmp
         }
         rule 30 {
             action drop
             description "Drop invalid state"
             state {
                 invalid enable
             }
         }
     }

interfaces ethernet eth3 {
         address 44.131.252.65/28
         description 44.131.252.65/28
         duplex auto
         firewall {
             in {
                 modify SOURCE_ROUTE
             }
             local {
             }
             out {
             }
         }
         ip {
         }
         speed auto
     }

interfaces tunnel tun0 {
         description "Tunnel to AMPRNet"
         encapsulation ipip
         firewall {
             in {
                 name 44Net_IN
             }
         }
         ip {
         }
         local-ip 80.235.222.210
         multicast disable
         remote-ip 169.228.34.84
         ttl 255
     }

protocols static {
         table 5 {
             interface-route 0.0.0.0/0 {
                 next-hop-interface tun0 {
                 }
             }
         }
        }

Shout if you get stuck!

Regards
Andy - M0MUX