DNS problems with two NICS

Hello All, I have a problem connecting my two PC's to the internet and a LAN
simultaneously, both PC's have two NICS , the LAN NIC's have static IP
addresses of 192.168.2.100 and 192.168.2.101 respectively, the internet
NIC's have IP's assigned using the DHCP server of an ADSL modem these are in
the 192.168.1. range, I have the dns addresses and gateways of the internet
NIC's set to the IP address of the ADSL router, the problem is when the PC's
are connected to the LAN (which is all the time ) the internet is
unavailable, as soon as I disable the LAN NIC the internet works perfectly,
what am I doing wrong ? both PC's are XP pro SP2 connected to a Windows 2003
server

Try setting the LAN NICs to not have any DNS listed. Leave the gateway of
the LAN NICs pointing to the ADSL modem, the same as you have it.

Why do you have two NICs in the machines? You can do all this with only one
NIC in each machine using your ADSL modem as the router, as you are. This is
how "everyone else" does it. Why not just disable one of the two NICs in
each machine an use only one?

-Frank

"Jon Holdsworth" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All, I have a problem connecting my two PC's to the internet and a
> LAN
> simultaneously, both PC's have two NICS , the LAN NIC's have static IP
> addresses of 192.168.2.100 and 192.168.2.101 respectively, the internet
> NIC's have IP's assigned using the DHCP server of an ADSL modem these are
> in
> the 192.168.1. range, I have the dns addresses and gateways of the
> internet
> NIC's set to the IP address of the ADSL router, the problem is when the
> PC's
> are connected to the LAN (which is all the time ) the internet is
> unavailable, as soon as I disable the LAN NIC the internet works
> perfectly,
> what am I doing wrong ? both PC's are XP pro SP2 connected to a Windows
> 2003
> server
>
>

After (re)reading your last sentence... about the server... what kind of
services is it running? DNS? DHCP? Domain Controller? Member server? Stand
alone server???? That info could change everything. Do you have two DNS
servers on your network (modem and server)? Do you have two DHCP servers on
your network?

Still don't see why you would need two NICs in the workstations though.

-Frank

"Jon Holdsworth" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All, I have a problem connecting my two PC's to the internet and a
> LAN
> simultaneously, both PC's have two NICS , the LAN NIC's have static IP
> addresses of 192.168.2.100 and 192.168.2.101 respectively, the internet
> NIC's have IP's assigned using the DHCP server of an ADSL modem these are
> in
> the 192.168.1. range, I have the dns addresses and gateways of the
> internet
> NIC's set to the IP address of the ADSL router, the problem is when the
> PC's
> are connected to the LAN (which is all the time ) the internet is
> unavailable, as soon as I disable the LAN NIC the internet works
> perfectly,
> what am I doing wrong ? both PC's are XP pro SP2 connected to a Windows
> 2003
> server
>
>

Frankster wrote:
> Try setting the LAN NICs to not have any DNS listed. Leave the gateway
> of the LAN NICs pointing to the ADSL modem, the same as you have it.
>
> Why do you have two NICs in the machines? You can do all this with only
> one NIC in each machine using your ADSL modem as the router, as you are.
> This is how "everyone else" does it. Why not just disable one of the two
> NICs in each machine an use only one?
>
> -Frank
>
> "Jon Holdsworth" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> Hello All, I have a problem connecting my two PC's to the internet and
>> a LAN
>> simultaneously, both PC's have two NICS , the LAN NIC's have static IP
>> addresses of 192.168.2.100 and 192.168.2.101 respectively, the internet
>> NIC's have IP's assigned using the DHCP server of an ADSL modem these
>> are in
>> the 192.168.1. range, I have the dns addresses and gateways of the
>> internet
>> NIC's set to the IP address of the ADSL router, the problem is when
>> the PC's
>> are connected to the LAN (which is all the time ) the internet is
>> unavailable, as soon as I disable the LAN NIC the internet works
>> perfectly,
>> what am I doing wrong ? both PC's are XP pro SP2 connected to a
>> Windows 2003
>> server
>>
>>
>
The reason I have two NIC's, is, I want to physically seperate the LAN
from the WAN, in fact I have it sorted now, the problem was both of the
NIC's had a gateway pointing to their respective servers
which apparently is a problem, I removed the gateway address from the
LAN NIC's and the problem went away, how could I do this with one NIC ?
, thanks for your time

"Pete Kane" <(E-Mail Removed)> wrote in message
news:gH9Qh.4256$(E-Mail Removed)...
> Frankster wrote:
>> Try setting the LAN NICs to not have any DNS listed. Leave the gateway of
>> the LAN NICs pointing to the ADSL modem, the same as you have it.
>>
>> Why do you have two NICs in the machines? You can do all this with only
>> one NIC in each machine using your ADSL modem as the router, as you are.
>> This is how "everyone else" does it. Why not just disable one of the two
>> NICs in each machine an use only one?
>>
>> -Frank
>>
>> "Jon Holdsworth" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>>> Hello All, I have a problem connecting my two PC's to the internet and a
>>> LAN
>>> simultaneously, both PC's have two NICS , the LAN NIC's have static IP
>>> addresses of 192.168.2.100 and 192.168.2.101 respectively, the internet
>>> NIC's have IP's assigned using the DHCP server of an ADSL modem these
>>> are in
>>> the 192.168.1. range, I have the dns addresses and gateways of the
>>> internet
>>> NIC's set to the IP address of the ADSL router, the problem is when the
>>> PC's
>>> are connected to the LAN (which is all the time ) the internet is
>>> unavailable, as soon as I disable the LAN NIC the internet works
>>> perfectly,
>>> what am I doing wrong ? both PC's are XP pro SP2 connected to a Windows
>>> 2003
>>> server
>>>
>>>
>>
> The reason I have two NIC's, is, I want to physically seperate the LAN
> from the WAN, in fact I have it sorted now, the problem was both of the
> NIC's had a gateway pointing to their respective servers
> which apparently is a problem, I removed the gateway address from the LAN
> NIC's and the problem went away, how could I do this with one NIC ? ,
> thanks for your time

You could do this with one $49 router.

-Frank

"Frankster" <(E-Mail Removed)> wrote in message
news:FJ-(E-Mail Removed)...
>> The reason I have two NIC's, is, I want to physically seperate the LAN from
>> the WAN, in fact I have it sorted now, the problem was both of the NIC's had
>> a gateway pointing to their respective servers
>> which apparently is a problem, I removed the gateway address from the LAN
>> NIC's and the problem went away, how could I do this with one NIC ? , thanks
>> for your time
>
> You could do this with one $49 router.

....like the one that is already there...

--
Phillip Windell
www.wandtv.com

The views expressed (as annoying as they are, and as stupid as they sound), are
my own and not those of my employer, or Microsoft, or anyone else associated
with me, including my cats.
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