RE: Several networks segments behind a NIC

  • From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 4 Oct 2005 22:11:54 -0700

I love how folks can figure out how to post here, but can't use the
search function in the isaserver.org page to find the articles they
need:
http://www.isaserver.org/articles/2004netinnet.html 

:-p

-----Original Message-----
From: Wilmar Perez [mailto:ewdpb@xxxxxxxxx] 
Sent: Tuesday, October 04, 2005 8:03 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Several networks segments behind a NIC

http://www.ISAserver.org 
Hello everybody.
 
This is my first post to  the list, so I'll try to make it as clear as
possible.
 
I've got a ISA Server 2004 running on a W2003 Server box with 2 NICs.
As you may guess one is looking to the Internet whilst the other faces
my LAN.  The thing is that I've got the following network segments in my
LAN:
 
192.168.98.0/24 this one is in VLAN 1
172.30.200.2/22 this one is in VLAN 2
 
The ISA Internal NIC has got the IP 192.168.98.2/24.  Both VLANs are
routed by my core switch without any problem.
 
The problem is that clients connected to the 192 network can surf the
Internet without any problem at all but those connected to the 172
network are completely banned to the Internet.  Both networks are
defined as Local Trusted Networks in the ISA.
 
I have strugled for 3 weeks now with this problem without much success.
I'd highly appreciate any help you guys may be willing to give me.
 
Thanks a lot.
 
Regards,
 
Wilmar.

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