The short answer is:  no

The long answer:

You have two options: routing or bridging.

To route traffic from the internet through your linux box to your wife's
pc would require at least 3 ip address on two different subnets.  This
could be done if verizon gave you an address block of static ips that
you could subnet; DHCP won't work because of route table issues.  (This
is how my dsl is set up, BTW)

To bridge, you would need to have some sort of device or code that can
filter/track/block/forward ip traffic that doesn't rely on routing code
(which IPTables/IPChains does).  I don't know if such a beast exists. :)

I'm lazy, so I would just buy a cheap hub and connect your wife's laptop
outside the firewall when she needs to use netmeeting (with BlackIce or
something similar, of course).

>
> I have another laptop from work that I use at home
> sometimes, and I'd hate to firewall and administer all
> my machines.
>
> After putting more thought to this, I realized that if
> my Linux box were to act as a 'real' gateway, since
> that is what I want it to do, I'd need to set both my
> NICs on the Linux box to real IP addresses, but since
> Verizon does DHCP I dont know if I could set my second
> NIC(internal network) to obtain a real IP from
> Verizon, since a DHCP request is only sent out on the
> line that the NIC is connected to...
>
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