Site A to B to third party C requiring NAT
I have an existing, functioning site to site IPSec tunnel from our site B to a third party Site C.
Our internal subnet:
We NAT this to a public IP:
Their network (single public-range IP):
So, all traffic from our private subnet on 10.177.140.0/24 goes to their public (but only accessible via VPN) IP of 184.108.40.206 and presents as 220.127.116.11 to them. This works and is stable.
We now have a third site, site A, which is controlled by us. We need it to talk to Site C, but without building a tunnel to it, as they will only support one tunnel per customer. We also must still present this traffic as coming from 18.104.22.168
Our internal IP range there at site A: 10.177.150.0/24
How can we accomplish this in PFSense, if it's possible at all?
Thanks for any input!