2K3 Server - 2 NICS, 1 External, 1 Internl.. Here's my problem...

Here's what I have..

2 Win 2K3 Servers both with 2 NIC Cards...

NIC 1
-------

Plugged directly into the back of the 4 Port DSL Modem from the ISP, serving
the IIS Site (206.126.xxx.xxx).

NIC 2
-------

Plugged directly into the back of the 8-Port Gigabit Router, which is plugged
into the DSL Modem, serving all the local machines in the building. (192.168.
0.xxx)

Problem is, when I have both network cards in the machine, the built-in NICs
which are serving the outside world IIS information, stops responding, and I
get can't be found in IE. If I pull the 2nd card, I can ping the machine,
goto IE all day long, and cruise the website that is on that machine.

Can someone tell me what I am doign wong, please!?

--- Goobz!

Is there one DSL modem or 2? Try posting ipconfig /all results for one of
these machines.

Doug Sherman
MCSE, MCSA, MCP+I, MVP


"Goobz" <u17991@uwe> wrote in message news:5acf8dcb8afea@uwe...
> Here's what I have..
>
> 2 Win 2K3 Servers both with 2 NIC Cards...
>
> NIC 1
> -------
>
> Plugged directly into the back of the 4 Port DSL Modem from the ISP,
serving
> the IIS Site (206.126.xxx.xxx).
>
> NIC 2
> -------
>
> Plugged directly into the back of the 8-Port Gigabit Router, which is
plugged
> into the DSL Modem, serving all the local machines in the building.
(192.168.
> 0.xxx)
>
> Problem is, when I have both network cards in the machine, the built-in
NICs
> which are serving the outside world IIS information, stops responding, and
I
> get can't be found in IE. If I pull the 2nd card, I can ping the machine,
> goto IE all day long, and cruise the website that is on that machine.
>
> Can someone tell me what I am doign wong, please!?
>
> --- Goobz!

Doug...

There is one DSL Modem, which is plugged directly into NIC 1 of both
servers. NIC 2 on both servers, gets plugged into the Gigabit router, so
transfering files between the machines it achived, then the router is plugged
into the DSL Modem, to give all internal machines an outside access...

I am not in the office right now, but I can give you a rough ipconfig all
readout...

NIC1
IP: 206.135.126.143
GW: 255.255.255.0
DNS: 207.182.224.5
DNS: 207.182.224.10

NIC2:
IP: 192.168.0.50
GW: 255.255.255.0
DNS: 192.168.0.1

---------------------------

NIC1
IP: 206.135.126.141
GW: 255.255.255.0
DNS: 207.182.224.5
DNS: 207.182.224.10

NIC2:
IP: 192.168.0.75
GW: 255.255.255.0
DNS: 192.168.0.1

---------------------------

The main reason for the dual NICs, is to be able to serve content through the
DSL Router, and still be able to connect to the machines inside the intranet
to copy files, documents, etc. Our DSL Router (Linksys BEFSR81) only has one
WAN port, so our setup is that router (DHCP), plus a Linksys Gigabit Router
to serve the machines 2nd NIC cards. Our DSL Modem has 4 ports on it, so NIC
1 of each machine, that is serving IIS content, is plugged directy into each
port.


Doug Sherman [MVP] wrote:
>Is there one DSL modem or 2? Try posting ipconfig /all results for one of
>these machines.
>
>Doug Sherman
>MCSE, MCSA, MCP+I, MVP
>
>> Here's what I have..
>>
>[quoted text clipped - 21 lines]
>>
>> --- Goobz!

--
Thanx for any help in advance!

Well, lots of questions about this topology, but I think we need to see an
ipconfig /all first. What I suspect is happening is that both NICs are
winding up on the same subnet and/or you are getting a conflicting default
gateway when the second NIC is enabled. Try:

Right click My Network Places and select Properties. Click
Advanced/Advanced Settings - if the Local Area Connection for the
192.168.0.50 adapter is not at the top of the binding order, move it there.
Manually configure the IP and subnet mask on this adapter and do NOT assign
a default gateway or DNS server IP.

Doug Sherman
MCSE, MCSA, MCP+I, MVP

"Goobz" <u17991@uwe> wrote in message news:5acfe516496ce@uwe...
> Doug...
>
> There is one DSL Modem, which is plugged directly into NIC 1 of both
> servers. NIC 2 on both servers, gets plugged into the Gigabit router, so
> transfering files between the machines it achived, then the router is
plugged
> into the DSL Modem, to give all internal machines an outside access...
>
> I am not in the office right now, but I can give you a rough ipconfig
all
> readout...
>
> NIC1
> IP: 206.135.126.143
> GW: 255.255.255.0
> DNS: 207.182.224.5
> DNS: 207.182.224.10
>
> NIC2:
> IP: 192.168.0.50
> GW: 255.255.255.0
> DNS: 192.168.0.1
>
> ---------------------------
>
> NIC1
> IP: 206.135.126.141
> GW: 255.255.255.0
> DNS: 207.182.224.5
> DNS: 207.182.224.10
>
> NIC2:
> IP: 192.168.0.75
> GW: 255.255.255.0
> DNS: 192.168.0.1
>
> ---------------------------
>
> The main reason for the dual NICs, is to be able to serve content through
the
> DSL Router, and still be able to connect to the machines inside the
intranet
> to copy files, documents, etc. Our DSL Router (Linksys BEFSR81) only has
one
> WAN port, so our setup is that router (DHCP), plus a Linksys Gigabit
Router
> to serve the machines 2nd NIC cards. Our DSL Modem has 4 ports on it, so
NIC
> 1 of each machine, that is serving IIS content, is plugged directy into
each
> port.
>
>
> Doug Sherman [MVP] wrote:
> >Is there one DSL modem or 2? Try posting ipconfig /all results for one
of
> >these machines.
> >
> >Doug Sherman
> >MCSE, MCSA, MCP+I, MVP
> >
> >> Here's what I have..
> >>
> >[quoted text clipped - 21 lines]
> >>
> >> --- Goobz!
>
> --
> Thanx for any help in advance!

My guess is that it fails because you have both the public and private
sides of your network plugged into the same DSL modem. To be frank, the
setup looks a bit of a dog's breakfast. You really need to isolate the
private LAN from the Internet router.

Incidently the values you gave as gateways are in fact netmasks.

I would think that the logical way to set up your network would to have
a public subnet (similar to a DMZ) which contained your web servers and the
public side of your NAT router. The private LAN would be isolated from the
DMZ, but machines on the private LAN should be able to connect to the web
servers through the NAT router (but not vice versa).

eg

Internet
|
DSL router
|
web servers 207.182.224.x dg <DSL router IP>
|
207.182.224.n dg <DSL router IP>
NAT router
192.168.0.1
|
LAN clients
192.168.0.x dg 192.168.0.1

Goobz wrote:
> Doug...
>
> There is one DSL Modem, which is plugged directly into NIC 1 of both
> servers. NIC 2 on both servers, gets plugged into the Gigabit router,
> so transfering files between the machines it achived, then the router
> is plugged into the DSL Modem, to give all internal machines an
> outside access...
>
> I am not in the office right now, but I can give you a rough
> ipconfig all readout...
>
> NIC1
> IP: 206.135.126.143
> GW: 255.255.255.0
> DNS: 207.182.224.5
> DNS: 207.182.224.10
>
> NIC2:
> IP: 192.168.0.50
> GW: 255.255.255.0
> DNS: 192.168.0.1
>
> ---------------------------
>
> NIC1
> IP: 206.135.126.141
> GW: 255.255.255.0
> DNS: 207.182.224.5
> DNS: 207.182.224.10
>
> NIC2:
> IP: 192.168.0.75
> GW: 255.255.255.0
> DNS: 192.168.0.1
>
> ---------------------------
>
> The main reason for the dual NICs, is to be able to serve content
> through the DSL Router, and still be able to connect to the machines
> inside the intranet to copy files, documents, etc. Our DSL Router
> (Linksys BEFSR81) only has one WAN port, so our setup is that router
> (DHCP), plus a Linksys Gigabit Router to serve the machines 2nd NIC
> cards. Our DSL Modem has 4 ports on it, so NIC 1 of each machine,
> that is serving IIS content, is plugged directy into each port.
>
>
> Doug Sherman [MVP] wrote:
>> Is there one DSL modem or 2? Try posting ipconfig /all results for
>> one of these machines.
>>
>> Doug Sherman
>> MCSE, MCSA, MCP+I, MVP
>>
>>> Here's what I have..
>>>
>> [quoted text clipped - 21 lines]
>>>
>>> --- Goobz!

Here's some questions / answers...

Doug Sherman [MVP] wrote:
>Well, lots of questions about this topology, but I think we need to see an
>ipconfig /all first. What I suspect is happening is that both NICs are
>winding up on the same subnet and/or you are getting a conflicting default
>gateway when the second NIC is enabled. Try:

-----------
This is correct! I have both NIC's on 255.255.255.0, both NIC1 (207.126.xxx.
xxx - WAN), and NIC2 (192.168.xxx.xxx - LAN). I didn't even think about
changing NIC2 to say 10.15.20.xxx, SN: 255.0.0.0. Would that be a solution!?
There is no DHCP needed, or expected from either of these servers.
-----------
>
>Right click My Network Places and select Properties. Click
>Advanced/Advanced Settings - if the Local Area Connection for the
>192.168.0.50 adapter is not at the top of the binding order, move it there.
>Manually configure the IP and subnet mask on this adapter and do NOT assign
>a default gateway or DNS server IP.

----------
I will remove the G/W and DNS' from the LAN NIC tomorrow.
---------
>
>Doug Sherman
>MCSE, MCSA, MCP+I, MVP
>
>> Doug...
>>
>[quoted text clipped - 54 lines]
>> --
>> Thanx for any help in advance!

--
Thanx for any help in advance!

Message posted via WinServerKB.com
http://www.winserverkb.com/Uwe/Forum...rking/200601/1

You think that my problem could be because I have them both on 255.255.255.0
Subnet? Should I redo the 2nd NICs to an IP scheme with say 255.255.255.248?

Doug Sherman [MVP] wrote:
>Well, lots of questions about this topology, but I think we need to see an
>ipconfig /all first. What I suspect is happening is that both NICs are
>winding up on the same subnet and/or you are getting a conflicting default
>gateway when the second NIC is enabled. Try:
>
>Right click My Network Places and select Properties. Click
>Advanced/Advanced Settings - if the Local Area Connection for the
>192.168.0.50 adapter is not at the top of the binding order, move it there.
>Manually configure the IP and subnet mask on this adapter and do NOT assign
>a default gateway or DNS server IP.
>
>Doug Sherman
>MCSE, MCSA, MCP+I, MVP
>
>> Doug...
>>
>[quoted text clipped - 54 lines]
>> --
>> Thanx for any help in advance!

--
Thanx for any help in advance!

Message posted via WinServerKB.com
http://www.winserverkb.com/Uwe/Forum...rking/200601/1