ICS Problem

[Guest]

I access the internet through a primary desktop PC with a wireless USB
device (Netgear Wireless USB Adapter). No porblem there. I am trying to
gain access to the web with a second desktop PC which is wired by a crossover
LAN cable to an internel NIC card in the primary PC. Both PCs communicate
with no problem with each other. I can successfully set up ICS on both PCs
which are running XP. No problem still. Everything seems perfect until I
enable the crossover link between the two PCs. At that point they can both
communicate with each other but the internet link to either PC dies. I can't
figure out why. As soon as I disable the crossover connection the internet
link is restored. The primary PC is sharing it's wireless connection as the
internet access point and connects to a router. I have tried turning off the
routers DHCP server function to no avail. What am I missing?

 

[Robert L [MVP - Networking]]

Is possible that you setup two default gateways on multihomed computer? Posting the result of ipconfig /all may help.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I access the internet through a primary desktop PC with a wireless USB
device (Netgear Wireless USB Adapter). No porblem there. I am trying to
gain access to the web with a second desktop PC which is wired by a crossover
LAN cable to an internel NIC card in the primary PC. Both PCs communicate
with no problem with each other. I can successfully set up ICS on both PCs
which are running XP. No problem still. Everything seems perfect until I
enable the crossover link between the two PCs. At that point they can both
communicate with each other but the internet link to either PC dies. I can't
figure out why. As soon as I disable the crossover connection the internet
link is restored. The primary PC is sharing it's wireless connection as the
internet access point and connects to a router. I have tried turning off the
routers DHCP server function to no avail. What am I missing?

 

[Steve Winograd [MVP]]

I access the internet through a primary desktop PC with a wireless USB
device (Netgear Wireless USB Adapter). No porblem there. I am trying to
gain access to the web with a second desktop PC which is wired by a crossover
LAN cable to an internel NIC card in the primary PC. Both PCs communicate
with no problem with each other. I can successfully set up ICS on both PCs
which are running XP. No problem still. Everything seems perfect until I
enable the crossover link between the two PCs. At that point they can both
communicate with each other but the internet link to either PC dies. I can't
figure out why. As soon as I disable the crossover connection the internet
link is restored. The primary PC is sharing it's wireless connection as the
internet access point and connects to a router. I have tried turning off the
routers DHCP server function to no avail. What am I missing?

I suspect that the wireless connection has an IP address in the same
192.168.0.x subnet that ICS uses, causing a conflict when both
connections are enabled. If so, the solution is to configure your
wireless router to use a different subnet, such as 192.168.1.x.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Guest]

Thanks for all the advice. Steve, your suspicion was correct. I followed
your advice and everything worked as it should. Thanks again.

 

[Steve Winograd [MVP]]

Thanks for all the advice. Steve, your suspicion was correct. I followed
your advice and everything worked as it should. Thanks again.

You're welcome. I'm glad that my suggestion helped you solve the
problem. Thanks for reporting the result.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com