RRAS problem

  • Thread starter msnews.microsoft.com
  • Start date


I would like to get RRAS working on a win 2k server with two network cards.

I have two subnets

The win2k server has IP

I can see all the machines on 0.xxx from 1.xxx
I can see all the machines on 1.xxx from 0.xxx

I need to be able to route to 2.xxx which goes through
I can see from all of 2.xxx

On the gateway I have a route to send 2.xxx to

I have a routing table on the win2k server

IPv4 Route Table
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 02 b3 0b 35 18 ...... Intel(R) PRO/100+ Management Adapter
0x10004 ...00 d0 b7 85 37 5c ...... Intel(R) PRO/100+ Management Adapter #2
Active Routes:
Network Destination Netmask Gateway Interface Metric 1 1 20 20 20 1 1 1 1 20 1 1 1
Default Gateway:
Persistent Routes:

I would like to know why this is not working and if there is an example of
what to do.
thank you

Sharoon Shetty K [MSFT]

Can you post a simple network diagram to understand the setup better?
Also, specifically, its not clear where the machine is located
in the network?


There are three subnets


All three subnets have separate connections to the Internet through their

There is a VPN tunnel from to
There is a server that is multi-homed (two network cards) at and
This server has RRAS working and is successfully routing traffic between
0.xxx and 1.xxx

I would like traffic from 2.xxx to be able to get to 0.xxx by going through
1.6 and 0.6

Does this help? I'm not sure how to draw a diagram suitable in a text

Bill Grant

Routing is a two-way process, so there are really two things you need to
check. The machines in need to know how to reach .
But more importantly the machines in need to know how to reach ! If it is across a VPN tunnel, then they must send the traffic
for through the tunnel to first.

So the clients in must send traffic for both and to the RRAS router (to prevent it going to the Internet
gateway). Then the RRAS router must forward traffic for across
the VPN link (to prevent it going to that subnet's Internet router by
default). This is the bit you have done.

At the other end, clients in must send traffic for both and through the VPN tunnel. Then the tunnel endpoint
router must forward traffic for to the RRAS router.


Hi Bill,

I thank you for your thoughts, though this does not give me the detail I
need to identify what the problem is.
As far as I can tell I have done what you outline. I need help from someone
with more specific detail.


Bill Grant

There is no way to give you specific advice when we do not know what the
network looks like. That is why Sharoon asked for more detail about it. We
need to know how the subnets are interconnected and what default gateways
the routers and client machines have.

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