Machine B to Machine A to router.

[LB]

Router
WAN 25.97.120.220
LAN 201.201.201.1

Machine A
NIC 1 (201.201.201.101, default gateway 201.201.201.1)
NIC 2 (203.203.203.101, default gateway [what should it be?])

Machine B
NIC 1 (203.203.203.102, default gateway [what should it be?])
{NIC 1 is plugged into NIC 2 on Machine A via crossover cable}

How do I get machine B to go through machine A to access the web?

LB

 

[Marc Reynolds [MSFT]]

Machine B should have a DG of 203.203.203.101
NIC 2 of Machine A should not have a DG.

--

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.

 

[Jeff Cochran]

Router
WAN 25.97.120.220
LAN 201.201.201.1

Machine A
NIC 1 (201.201.201.101, default gateway 201.201.201.1)
NIC 2 (203.203.203.101, default gateway [what should it be?])

Won't matter. Though it *seems* like you can enter one, Windows only
uses a single default gateway. leave it blank.

Machine B
NIC 1 (203.203.203.102, default gateway [what should it be?])

The address it plugs into on Machine A, 203.203.203.101

{NIC 1 is plugged into NIC 2 on Machine A via crossover cable}

How do I get machine B to go through machine A to access the web?

Just like that.

You don't mention operating systems, but you might also want to look
at Internet Connection Sharing. Also, I assume you've made up the
IP's since the 201 and 203 netblocks might get you into trouble when
you hit the folks in Uruguay who actually own that netblock...

Jeff