Winfix1
asked on
Dual ADSL Router to Win2003 Server with Single NIC
Hi
I have a client who has had a 2nd ADSL installed with their SINGLE NIC Windows 2003 server behind.
They now have 2 Netgear DG834 routers configured as
Router1
Public IP 80.14.x.x
LAN IP 192.168.180.1
Router2
Public IP 85.20.x.x
LAN IP 192.168.180.5
SBServer
LAN IP 192.168.180.2
Gateway IP 192.168.180.1
This works fine to send incoming SMTP, Web and RAS traffic IN through Router1.
The problem occurs when I send traffic in through Router2. I get no response back from the server? I can see that the traffic is hitting the router from its logs and being forwarded to the Server.
Is this because the Server NIC has a gateway of 192.168.180.1 and is sending the response traffic out to Router 1?
I have tried setting a static route on Router 1 to Router 2 as follows:
Destination IP 85.20.x.x (Router2 Public IP) Gateway 192.168.180.5
but that doesn't work.
I have tried setting a second gateway on the server NIC of 192.168.180.5 and that seems to break everything!
Can someone please advise.
M
I have a client who has had a 2nd ADSL installed with their SINGLE NIC Windows 2003 server behind.
They now have 2 Netgear DG834 routers configured as
Router1
Public IP 80.14.x.x
LAN IP 192.168.180.1
Router2
Public IP 85.20.x.x
LAN IP 192.168.180.5
SBServer
LAN IP 192.168.180.2
Gateway IP 192.168.180.1
This works fine to send incoming SMTP, Web and RAS traffic IN through Router1.
The problem occurs when I send traffic in through Router2. I get no response back from the server? I can see that the traffic is hitting the router from its logs and being forwarded to the Server.
Is this because the Server NIC has a gateway of 192.168.180.1 and is sending the response traffic out to Router 1?
I have tried setting a static route on Router 1 to Router 2 as follows:
Destination IP 85.20.x.x (Router2 Public IP) Gateway 192.168.180.5
but that doesn't work.
I have tried setting a second gateway on the server NIC of 192.168.180.5 and that seems to break everything!
Can someone please advise.
M
ASKER
M3rc74
I want incoming SMTP, Web and other traffic to be able to come in and out through both routers. ie to use the second ADSL as a failover incoming route for SMTP traffic once a second MX record is setup.
I want incoming SMTP, Web and other traffic to be able to come in and out through both routers. ie to use the second ADSL as a failover incoming route for SMTP traffic once a second MX record is setup.
SOLUTION
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With this scenario, can do manually, changing default gateway. But adding a second gateway not work.
ASKER
I want to use the existing Routers and don't want manual intervention. Surely its a simple thing achieve. Maybe I need to add a static route to the IP config of the server?
SOLUTION
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ASKER CERTIFIED SOLUTION
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or from Client to Server and Server to routers?