Re: How to stop XP from accessing internet through two network car
From: Steve Winograd [MVP] (winograd_at_pobox.com)
Date: 02/10/05
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Date: Thu, 10 Feb 2005 14:37:39 -0700
In article <E9B0F97F-70AE-4259-9AE7-CDDA8284FE35@microsoft.com>,
"Hicklebird" <Hicklebird@discussions.microsoft.com> wrote:
>Yes I double checked the settings. Internet explorer has nothing checked in
>the lan settings. Which means no proxy settings, if this were the case there
>would be NO internet. There is no gateway address in the LAN nic. And yes
>the cards have very different subnets. DSL is like in the 208s and LAN in
>the 190s. (Don't want to be specific for security reasons.
>
>We engineers are stumped here.
>
>Thanks,
>
>Richard
>
>
>> >> >We have a XP computer with two network cards. We are on a Domain NT 4.0
>> >> >server. One card is configured for obtaining internet through a DSL modem.
>> >> >The other network card is configured for internal use for connection to
>> >> >network drives and the Exchange server (DHCP server). We recently got rid of
>> >> >the darn Proxy server and have a hardware firewall for clients on the LAN to
>> >> >have internet. So now the internal card on this XP computer sees the
>> >> >internet that everyone on the LAN uses. But this particular computer needs
>> >> >to only use the DSL becasue this person needs the bandwidth the DSL modem
>> >> >provides. There IS NOT a gateway address on the internal card. Our
>> >> >temporary fix is to disable the internal network card so the software on that
>> >> >XP computer uses to connect to another server will use the proper internet
>> >> >connection. Is there a way to tell IE which network card to use for
>> >> >internet? This is getting old fast.
>> >> >
>> >> >Thanks,
>> >> >
>> >> >Richard
>> >>
>> >> From your description, everything is set up right, and the computer in
>> >> question should only be using the DSL connection for Internet access.
>> >> How do you know that it's using the wrong Internet connection? What
>> >> exactly do you see?
>> >>
>> >> Double check that:
>> >>
>> >> 1. The proxy server settings have been removed from Internet Explorer.
>> >> 2. There's no default gateway specification on the LAN NIC.
>> >> 3. The LAN and DSL connections have IP addresses in different subnets.
>> >>
>> >> If that doesn't solve the problem, please reply to this message in the
>> >> news group (not by E-mail) with more information to help other people
>> >> understand the problem. Include a copy of the output from "ipconfig
>> >> /all" and "route print" on that computer.
>> >>
>> >> To protect the corporate network, make sure that there's a firewall on
>> >> the DSL connection!
>> >
>> >What I'm seeing is: She uses MSN messenger and AOL instant messenger. When
>> >I disable the internal network connection all that disconnects then
>> >reconnects (obviously through the network card to the DSL). Also prior to
>> >disabling the lan card the software she uses to connect to another server
>> >just sits there searching for the server through the internet then times out.
>> > After the lan card is disabled the software finds the server through the
>> >internet after about 30 seconds and the logon to the server appears.
>> >
>> >Thanks Steve,
>> >
>> >Richard
>>
>> You're welcome, Richard. Did you double check the items that I
>> mentioned?
>>
>> Posting a news group reply with the "ipconfig /all" and "route print"
>> output (made when both network connections are active) will help in
>> finding the problem.
>
>Yes I double checked the settings. Internet explorer has nothing checked in
>the lan settings. Which means no proxy settings, if this were the case there
>would be NO internet. There is no gateway address in the LAN nic. And yes
>the cards have very different subnets. DSL is like in the 208s and LAN in
>the 190s. (Don't want to be specific for security reasons.
>
>We engineers are stumped here.
>
>Thanks,
>
>Richard
I'm sorry, but without seeing the output from "ipconfig /all" and
"route print", there's nothing more that I can do.
IP addresses in the 192.168.x.x range are private and non-routeable.
It's safe to post them in a news group.
You can disguise the first one or two octets of the DSL IP address.
Are you 100% sure that traffic is going through the wrong connection?
Double-click both connections to see their status windows, and monitor
the number of bytes/packets sent and received. That will show where
the traffic is going.
-- 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
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