PF Blocking VPN Traffic

[plexter]

Hello all,

I am having difficulty allowing VPN traffic to pass through my firewall.

I have tried various combination's with the below being my latest.

pass on $ext_if proto esp from any to any
pass on $ext_if proto udp from any to any port {isakmp, ipsec-nat-t}
pass on $int_if proto esp from any to any
pass on $int_if proto udp from any to any port {isakmp, ipsec-nat-t}

Basically all I am trying to do is allow any traffic that is connected to my VPN (not setup on PF machine) to pass through my firewall (PF).

Hope someone can assist.

Thanks!