Re: 2 NICs and routing

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Dusty Harper {MS} (DHarper_at_Online.Microsoft.com)
Date: 08/16/04 

Date: Mon, 16 Aug 2004 13:54:59 -0700

The router doesn't need routes added. It has routes already because it is
directly connected to each network segment.

On the client machines, they need either a specific, subnet, or default
route in order to know where to send the packet for further processing.

[A]-------------------[ Router ]---------------------[B]
                192.168.2.102 172.18.6.102

[Router]
just needs IP Forwarding enabled. Windows already has routes for each
network setup in the IP stack because the router has interfaces on each
subnet ( so the router already knows how to get to each )

[A]
Route add 172.18.6.0 mask 255.255.255.0 192.168.2.102

[B]
Route Add 192.168.2.0 mask 255.255.255.0 172.18.6.102

Also note that if you are going from a Private address scheme into a public
one, then you need to NAT the packets.

( 172.18.6.102 is a public address scheme ) 

-- 
-- 
Dusty Harper
Microsoft Corporation
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"bucrepus" <bucrepus@hotmail.com> wrote in message
news:OaTi8F9gEHA.3148@TK2MSFTNGP10.phx.gbl...
> I reduced this question for easier reading...
> I have 2 NICS on two sep. networks (w2k3 svr) and one wrkstation on each
> cable connected to the server.
> On the SERVER:
> NIC1 192.168.2.102   255.255.255.0
> NIC2 172.18.6.102    255.255.255.0
>
> On WrkStation1:
> NIC 192.168.2.55
> On WrkStation2:
> NIC 172.18.6.55
>
> I need to route info from one to the other network. (ping the wrkstation
IP
> on the other network. (Ex Ping 192.168.2.55 from the workstation
172.18.6.55
> and get reply..)
> I setup 2 static routes on server.
> INTERFACE NIC1
> Dest: 172.18.6.0   NM:255.255.255.0 Gate:192.168.2.102  Metric 1
> INTERFACE NIC2
> Dest: 192.168.2.0  NM:255.255.255.0 Gate:172.18.6.102 Metric 1
>
> Doesnt work.. any ideas.. Thanks...
>
>

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