So here's the scenario,

I have a network at my job with a T1 connection. I have the T1 line going to a Linux box with 2 Network cards which does NAT and IP Masquerading. The external card has our public IP address and the second is on the internal subnet 192.168.1.0. Everything works great. I am using an IPTABLES script as a firewall (Network A).

Here is the deal. We just recently acquired a new office on the other side of town. Our ISP will be dropping another T1 line there with another public IP address. I would like to set up a similar box there with 2 NICs and have it on an internal subnet say 192.168.2.0.(Network B)

I would then want to be able to get into Network A from any machine in Network B and access all the services like Samba, email, etc. from Network B.

Is this feasible and has anyone done this? And if this is not the way to go can anyone give me some advise as to the best way to get this to work?

Thanks a bunch.

use a vpn server like OpenVPN to connect the two sites securely.

//moderator.note: ...and dont make duplicate post please.