Double NAT

[Ofloo]

sorry not really good in these drawings tried to be as clear as possible

[mikeisfly]

What ISP are you using, I may be able to help? Why not put your firewall in the DMZ of the ISP NAT device. Most of the time their DMZ will forward all unsolicited traffic to the DMZ IP.

[Ofloo]

The ISP nat is in dmz to 192.168.10.10, .. the target is the router, ..

[Derelict]

Aren't we just wasting time trying to double-NAT SIP?

[mikeisfly]

Who is your ISP?

[Ofloo]

The ISP with the issue is Telenet it's european, .. and no where not wasting time trying to make sip work, sip already works it uses udp. I'm trying to forward a tcp port, with netcat listening on the end, if you want I can make it port 10000, but i don't think this will change the issue, .. why is portforward not working i think it's strange. It shouldn't matter if the traffic before it is NAT it has dmz all is forwarded, .. so why does the traffic stop at the 192.168.10.10 IP

If I setup netcat on IP 192.168.10.10, then I can connect to it, then if I forward the port, it can't connect, I'm pretty sure it's some configuration issue. But I wouldn't know where to start.

# sysctl -a | grep forward
kern.smp.forward_signal_enabled: 1
net.inet.ip.forwarding: 1
net.inet.ip.fastforwarding: 0
net.inet6.ip6.forwarding: 1
# 

nat on vr0 inet from 127.0.0.0/8 to any port = isakmp -> 192.168.10.10 static-port
nat on vr0 inet from 127.0.0.0/8 to any -> 192.168.10.10 port 1024:65535
nat on vr0 inet from 172.16.1.0/24 to any port = isakmp -> 192.168.10.10 static-port
nat on vr0 inet from 172.16.1.0/24 to any -> 192.168.10.10 port 1024:65535
nat on vr0 inet from 192.168.1.0/24 to any port = isakmp -> 192.168.10.10 static-port
nat on vr0 inet from 192.168.1.0/24 to any -> 192.168.10.10 port 1024:65535
rdr on vr0 inet proto tcp from any to 192.168.10.10 port = 5060 -> 192.168.1.40
rdr on vr0 inet proto udp from any to 192.168.10.10 port = 5060 -> 192.168.1.40
rdr on vr1 inet proto tcp from any to 192.168.10.10 port = 5060 tag PFREFLECT -> 127.0.0.1 port 19000
rdr on vr1 inet proto udp from any to 192.168.10.10 port = 5060 tag PFREFLECT -> 127.0.0.1 port 19000

also i can connect to the ssh pfsense from the outside, however I can't forward it to any other ssh

[Ofloo]

I think I know what the problem is, .. however I'm not sure how to solve this

from what i gather

tcp:

SYN =>
<= SYN ACK
ACK =>
connection established

however, ..

WAN2 is a secundairy gateway while WAN1 is the default gateway, .. traffic is comming in through WAN2, however since the WAN1 is the default gateway of the client, it responds through WAN1, connection failed.

Exactly like johnpoz said earlier.

edit:

yes, if i change the route for that specific ip i can connect to the tcp, however now my question how can i make a dynamic route so that when I connect to it that traffic goes through the correct gateway. And that's why UDP works. It all makes sense now.

can this be solved with a routing daemon?