Re: Routing

From: "Souko souko" <ssouko@xxxxxxxxxxx>
To: isalist@xxxxxxxxxxxxx
Date: Wed, 09 Jan 2002 23:03:53 +0000


Hi Chris,

I've got exactly the same problem. Haven't found the solution yet and I'm going nuts.

What I found out is that using network monitor on ISA I got the following.

192.168.10.x network not working
10.101.x.x network working ok

When an internal host from 192 tries eg to do a dns lookup I can see the request coming on ISA's internal 192 card but it isn't leaving the external card to a external dns server and nothing returns.

Packets from the internet follow the rules and are passed correctly to the 192 network but from the 192 outwards nothing can pass. The packets seem to be lost inside ISA.

I don't know whats going on. I've checked the routing tables all seems to be ok.

Could a solution be to use a router under ISA connect the two subnets on the router and use it as the default gateway and then pass the packets to ISA (would that stop ISA beeing confused?).

Any help guys?

From: "Chris Bond" <chris@xxxxxxxxxxxxx>
Reply-To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Subject: [isalist] Routing
Date: Wed, 9 Jan 2002 15:26:58 -0000

http://www.ISAserver.org

Hi,

I have an ISA Server with 3 networks cards in, on external interface to
the internet.  The second for subnet1 (192.168.1.x), the third for
subnet2 (192.168.2.x).

At the moment from the 192.168.1.x side you can ping its own subnet1 and
192.168.2.x (subnet2).

From the 192.168.2.x side you ping its own subnet2 but not 192.168.1.x
(subnet1).

How can I get ISA/RRAS to route the packets on the subnet2 to subnet1?

ISA is configured so that the external network has a gateway address of
our internet router, the subnet1 and subnet2 gateways are both blank.

Can anybody shed any light to this matter?

Kind Regards,
Chris Bond

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Re: Routing

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