Complicated NAT setup

[Paul Webster]

Thank you for the fast reply mark, here is a list of interfaces with there
relative ips:

GW1(local lan gateway):
 lo0: 127.0.0.1 ::1
 igb0: 86.5.192.180 (public_ip)
 igb1: 172.31.33.1/24 (private lan)
 msk0: unused/192.168.0.1
 tun0: 172.19.20.2
 gre0: 10.0.0.1 (via igb0)

GW2(vps remote gateway):
 lo0: 127.0.0.1 ::1
 vio0: 185.157.232.30
 gre0: 10.0.0.2 (via vio0)

Xbox1 ( GW1[igb1->gre0] -> GW2[gre0->vio0] ):
 lo0: 127.0.0.1 ::1
 vtnet0: 172.31.33.254

NOTE: xbox1 in this case is really freebsd 12-current with the forced ip
172.31.33.254, because xbox really is to restrictive for debug purposes,
all it requires is that I set the correct dhcp-host on GW1 to make the
xbox1 172.31.33.254 though.

Also the $localnet is really { 172.31.33.2-200 } so when the XBOX is
172.31.33.254
it is not going out via primary NAT rule it is instead getting caught by

pass in quick on $int_if from $josh_xbox rtable 1       # Swap packets from
the xbox to fib1 routing table

and the corresponding NAT further up the ruleset, the 'default route' of
'fib 1' is 10.0.0.2