Topic: SME VPN Server behind a firewall win 1 NIC, possible?

[albatroz]

I have 2 SMEs in my location, one is a firewall
and VPN server, and the other is an email server.

I would like to replace the firewall by more firewall
like distro, something like IPCOP or Smoothwall.

And then turn the SME email server in a VPN server too.

Will it work with only 1 NIC?

[cc_skavenger]

Sure, as long as the correct ports / protocols are forwarded to the SME server.