"ICS" ping works from second computer, ie doesn't

[Cade]

Hi, I am having a problem with networking my home computers. The
first computer is running XP Home Edition, the second computer is
running XP Professional Edition. I have 2 NICS in the 1st computer, 1
nic has a public ip address, the other nic has an address of
192.168.0.1; everything on that computer is working fine (ping, ie,
email). The second computer is connected to the 1st computer via a
x-over cable and it has received an ip address via DHCP of
192.168.0.179. Ping works great from the second computer, I can ping
a hostname (cnn.com), as well as an ip address outside of my LAN. For
some reason I cannot get internet explorer to work - I keep getting
the error that states the web page cannot be displayed, or internet
explorer could not open the search page. Any ideas why? I have run
the wizard on both computers several times, I have manually configured
DNS on both computers. I have turned on and off the firewall on the
first NIC of the 1st computer, nothing seems to work. If anyone could
help, I would appreciate it a ton.

[Steve Winograd [MVP]]

In article <72614624.0307141942.4c13242a@posting.google.com >,
[email]cadeabeck@hotmail.com[/email] (Cade) wrote:

>Hi, I am having a problem with networking my home computers. The
>first computer is running XP Home Edition, the second computer is
>running XP Professional Edition. I have 2 NICS in the 1st computer, 1
>nic has a public ip address, the other nic has an address of
>192.168.0.1; everything on that computer is working fine (ping, ie,
>email). The second computer is connected to the 1st computer via a
>x-over cable and it has received an ip address via DHCP of
>192.168.0.179. Ping works great from the second computer, I can ping
>a hostname (cnn.com), as well as an ip address outside of my LAN. For
>some reason I cannot get internet explorer to work - I keep getting
>the error that states the web page cannot be displayed, or internet
>explorer could not open the search page. Any ideas why? I have run
>the wizard on both computers several times, I have manually configured
>DNS on both computers. I have turned on and off the firewall on the
>first NIC of the 1st computer, nothing seems to work. If anyone could
>help, I would appreciate it a ton.

Are you sharing a DSL connection that uses PPP Over Ethernet (PPPoE)?
If so, you've hit a bug in Windows XP. Here are some possible fixes.
Any one of them should solve the problem:

1. Install Windows XP Service Pack 1 on the ICS host computer.

2. Find the right MTU setting on the client computers, as shown here:

[url]http://www.annoyances.org/exec/show/article04-107[/url]

and then make the setting manually on the client computers, or use
DrTCP to make it:

[url]http://www.dslreports.com/front/drtcp.html[/url]

3. Download the free RASPPPoE program and install it on the host
computer. Use it instead of XP's PPPoE program. Details at these
sites:

[url]http://www.wown.com/j_helmig/adslpoe2.htm[/url]
[url]http://user.cs.tu-berlin.de/~normanb/[/url]

See these sites for more information:

Connectivity Problems on ICS Clients When You Use a PPPoE Connection
on a Windows XP ICS Host
[url]http://support.microsoft.com/default.aspx?scid=kb;en-us;319661[/url]

Troubleshooting MTU Size in PPPoE Dialin Connectivity
[url]http://www.cisco.com/warp/public/794/router_mtu.html[/url]
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

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