@rolster said in Multi-Hop OpenVPN:
I have an OpenVPN installation running between my head office for Business "A" and the Head Office for Business "B".
It works really well and does what I want it to do.
In both businesses, I have multiple sites that also need to connect across the OVPN tunnel, but we don't the necessay L3 routing in place to get their traffic to each of the head offices.
In my head, I believe that this should be possible, by installing a PFS OVPN client at each site.
The local traffic can be forwarded into the LAN interface without issue.
I want the traffic to travel via the WAN interface to the LAN interface of the successfully connected installation, then travel through the working inter-site tunnel to the partner business.
I think it should be "do-able", but haven't got it working yet.
Any tips or advice?
So you have a site to site tunnel between A and B?
How are the "multiple sites" connected? Just to A, just to B, between both?
I don't know what PFS is, do you mean pfSense? If so, yes, that would work, but not necessary. Any OpenVPN client would work.
What JKnott means is you just need the correct static routes between sites. The OpenVPN config will add them if done right.