Hello I was wondering if anyone was able to get openswan to work behind a router? meaning openswan -- ROUTER - << Internet >> - ROUTER -- openswan
I have an existing Openswan VPN, all working fairly well with Windows, Mac and Phones.
[Office 192.168.0.0/24]---[VPN A.B.C.D]----[Internet]---[Home Routers (NAT), Dynamic IPs]----[Workstations]
Now I want to run an offsite backup server and connect it to the same VPN, still with a dynamic IP
[Office 192.168.0.0/24]---[VPN A.B.C.D]----[Internet]---[Home Router (NAT), Dynamic IP]----[zfsbackup]
Unfortunately AWS doest support IPSec Ikev2, DH group higher than 2 and AES256. So we are switching to OpenSwan. I was able to setup OpenSwan on a NAT instance on a VPC's public subnet with EIP and it works great.