creating socket connection on a PC with 2 nic cards

[Darren Lenick]

I need some clarification:

Do you have both NICS (public and private IP's) plugged
into the same router? If so, you have a configuration
problem unless your router is port programmable for
different IP networks. NIC2 should be left in the
router, but NIC1 needs to be plugged directly into the
Public side. If you are using Broadband, you should plug
a hub into the broadband device, then plug your VPN
device into the router as well as NIC1. NIC2 stays in
the router.

BETTER IDEA: use only NIC2 in the router and use Port
mapping to properly route the packets. That way, your
server is 100% behind a firewall. I have this
configuration setup at multiple clients using the
Symantec VPN/Firewall appliance with a VPN connection to
a remote site and IIS and Exchange on the local server
with access to the Internet via T1 line.

 

[Erica]

I currently have both nics public and private IP's plugged
into the same swith the ports are not programmable. I
could connect the public of the vpn directly to nic2. No
I'm not using broadband, my internet source is a
fractional T-1. Should it or would it make a difference
if I put the public side of the vpn to the pc with a
crossover cable and leave nic1 in the switch going out to
the Lan.