2 NIC card. Which oe is connected to LAN?

[Bob Beers]

On 12/23/05, Dick Middleton <dick at lingbrae.com> wrote:
> Neena M.S wrote:
>
> >  i have two ethernet card .. one is connected to internet and other is
> > in intranet. how will i identify the intranet NIC ? checking the iup? is
> > there any other way to do the same?
>
> If it's configured you can look at its IP address.  Otherwise looking at
> its MAC address is probably the best way.  The MAC address is normally
> written on the interface card should you be looking for positive
> identification.

How about:
ping an internet address and see which card blinks its activity light.

-Bob