Best of all is two nics teamed using the hardware vendor's teaming software.
That gives you resilience for a nic failure (and it is inexpensive). Next
best is a spare nic, ready to use, but Disabled.
The whole business about two separate network "connections" (as distinct
from two nics) is from when networking equipment was expensive and Windows
provided a simple Dial-up Remote Access Service. Then windows has to Bridge
the two networks, inside and outside.
The other specialised case for two connections is when you are using the
server as a hardened firewalling or proxy appliance, for example running ISA
server.
Then SBS Premium has configurations with two connections because it is
trying to give you everything in one box.
Now networking equipment is inexpensive and there is little reason to use
the server for remote access, connection sharing etc. Of course you may
still choose to.
Hope that helps,
Anthony
http://www.airdesk.com
"coopfab" <> wrote in message
news:08AA290B-23F1-47C5-B4CA-...
> We're migrating Outlook currently running on our workstations to Exchange.
> In
> our server we have 1 nic and a router between the server and the internet.
> Is
> it better to have 2 nics? As I understand it, you can't run Windows
> Firewall/ICS with ony 1 nic.
> Thanks in advance for your help.
> --
> M. Cooper