Site to Site VPN

[Snipergod87]

So i was wondering if there is some way I can setup a site to site VPN between two buildings, on different ISP's. One of the routers supports VPN (its a Firebox (Dont remember the model X?)). My other router is a D-Link DGL-4100 doesnt support VPN if it does it is well hidden, So I was wondering if this is even possible, but is there some software that I could install on a computer thats DMZ'ed to allow a site to site VPN?

 

[Snipergod87]

If its not possible let me know

 

[GhislainG]

Having different ISPs isn't an issue, but both routers should support VPN and either be the same or at least compatible. It looks like the Firebox doesn't have Branch Office VPNs by default; it probably is an option. I've never tried to setup a site to site VPN using software, but this might be of interest to you: http://openvpn.net/

 

[Snipergod87]

Best answer selected by Snipergod87.