How to stop XP from accessing internet through two network cards.

[Guest]

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

 

[Steve Winograd [MVP]]

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!
--
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]

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

 

[Steve Winograd [MVP]]

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.
--
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

 

[Steve Winograd [MVP]]

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



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

 

[Guest]

Okay Steve I'll see about posting this information on here tomorrow.

Goodnight,

Richard

 

[Guest]

I fixed it, I fixed it. And I did it without Microsoft's help. I fixed it.

What I did was take the LAN card and took it off DCHP and give that card a
static internal address and now the card DOES NOT have a gateway ip (left it
blank) or know how to properly get a DNS address. Ha ha ha ha ha

 

[Steve Winograd [MVP]]

I fixed it, I fixed it. And I did it without Microsoft's help. I fixed it.

What I did was take the LAN card and took it off DCHP and give that card a
static internal address and now the card DOES NOT have a gateway ip (left it
blank) or know how to properly get a DNS address. Ha ha ha ha ha

So there was a default gateway specification for the LAN card, as I
suspected. The "ipconfig /all" and "route print" outputs that I
requested would have shown that.
--
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]

Not exactly. I think it would be more nearly correct to say that there is a
default gateway specified for the DHCP server. Cause this was not actually
configured in the LAN card (and was blank in the properties window) but was
configured in the firewall for the DHCP server. When DHCP was disabled by
installing the fixed local IP address that severed the cards connection with
DHCP and therefore the DHCP's gateway.

Or am I just being picky?

Thanks for your help Steve,

Richard

 

[Guest]

And I have to mention that I received good news Steve. We are retiring our
old NT4.0 backoffice server. We FINALLY got the okay for Sever 2003. I am
looking forward to an easier time with security issues.

Thanks again,

Richard

 

[Steve Winograd [MVP]]

Not exactly. I think it would be more nearly correct to say that there is a
default gateway specified for the DHCP server. Cause this was not actually
configured in the LAN card (and was blank in the properties window) but was
configured in the firewall for the DHCP server. When DHCP was disabled by
installing the fixed local IP address that severed the cards connection with
DHCP and therefore the DHCP's gateway.

Or am I just being picky?

Thanks for your help Steve,

Richard

You're welcome, Richard. You didn't specify a default gateway in the
LAN card properties. The DHCP server specified a default gateway when
it assigned an IP address to the LAN card. Either way, it would
appear in "ipconfig /all", "route print"

It would also appear if you right click the LAN connection and click
Status | Support. Apparently, I should have specifically asked you to
look there.
--
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

 

[Steve Winograd [MVP]]

And I have to mention that I received good news Steve. We are retiring our
old NT4.0 backoffice server. We FINALLY got the okay for Sever 2003. I am
looking forward to an easier time with security issues.

Thanks again,

Richard

Good deal!
--
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 Steve I'll remember that switch. Actually it has come in handy for
troubleshooting network problems this week so far. Thanks for you help.

Richard