network bridge and firewall

[Mark]

I have two Windows XP PCs. PC 1 connects to PC 2 via a
10/100 cable. PC 2 also has a wireless adapter that
connects to my ADSL modem and hence to the Internet.

I ran the network setup wizard on PC 2 and it bridged the
connection between the 10/100 and wireless adapters.

Because they are bridged I cannot enable the firewall on
the wireless adapter to protect against the Internet
connection.

I need PC 1 to be able to see the shared folders on PC 2
and I want PC 1 to be able to use the Internet connection.

Is there some way I can set up internet connection sharing
on PC 2 so PC 1 can connect to the Internet via PC 2
without a bridge please?

Thanks for any help...

 

[Steve Winograd [MVP]]

I have two Windows XP PCs. PC 1 connects to PC 2 via a
10/100 cable. PC 2 also has a wireless adapter that
connects to my ADSL modem and hence to the Internet.

I ran the network setup wizard on PC 2 and it bridged the
connection between the 10/100 and wireless adapters.

Because they are bridged I cannot enable the firewall on
the wireless adapter to protect against the Internet
connection.

I need PC 1 to be able to see the shared folders on PC 2
and I want PC 1 to be able to use the Internet connection.

Is there some way I can set up internet connection sharing
on PC 2 so PC 1 can connect to the Internet via PC 2
without a bridge please?

Thanks for any help...

Is your "ADSL modem" just a modem, or is it also a broadband router?
If it's a router, it has a built-in firewall function, and you don't
need to firewall PC2's wireless network connection. If in doubt,
check the wireless connection's IP address. If it's 10.x.x.x or
192.168.x.x, you have a router and you don't need to firewall the
wireless connection. In that case, you can use the network bridge.

Otherwise, right-click and delete the network bridge, firewall the
wireless network connection, and enable Internet Connection Sharing on
the wireless network connection. If it asks what to use for the home
network connection, tell it to use the wired connection. I've written
a web page with details:

Windows XP Internet Connection Sharing
http://www.practicallynetworked.com/sharing/xp_ics/
--
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

 

[Mark]

Steve,

You're right, the modem is also a router and firewall but
according to PC World it's best to have "defense in
depth":

http://www.pcworld.com/reviews/article/0,aid,115939,pg,8,0
0.asp

Did what you suggested: deleted the bridge, shared and
firewalled the wireless and then re-ran the network
wizard on PC 1 and all is working fine.

Many thanks for your help. Liked your web page by the
way...

-----Original Message-----

 

[Steve Winograd [MVP]]

Steve,

You're right, the modem is also a router and firewall but
according to PC World it's best to have "defense in
depth":

http://www.pcworld.com/reviews/article/0,aid,115939,pg,8,00.asp

Did what you suggested: deleted the bridge, shared and
firewalled the wireless and then re-ran the network
wizard on PC 1 and all is working fine.

Many thanks for your help. Liked your web page by the
way...

You're welcome, Mark. I'm glad that my suggestions helped and that
you liked my web page. Enjoy your network!
--
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