I would suggest putting a second nic in the SQL server and the Exchange
server and put them on the internal LAN and not go through the Linux server.
Make sure that IP routing is turned off when adding the second NIC. It's
very easy to do. Besides's you can turn off a lot of services on the
external nics on the NT boxes to help secure them from outside threats
because you have public IP addresses on them.
Lyle
-----Original Message-----
From: James Lewis [mailto:[EMAIL PROTECTED]]
Sent: Sunday, February 27, 2000 4:44 PM
To: [EMAIL PROTECTED]
Subject: [expert] problems with masquerading and NT services
I have 3 NT workstations on an internal LAN, going through ipmasq (on
2.2.13) which is providing NAT. General services such as web browsing, FTP
etc, are working fine but we are experiencing very annoying problems with
Microsoft Outlook 2000 (running in 'Corporate Workgroup mode) running on
the 'Internal' machines connecting to an External Exchange server with a
public IP.
The problems seem to be because the exchange server is seeing requests from
3 different machines coming from the single IP address of the NAT machine
(the problems more or less go away when there is only one machine running
internally). The same problem is arising with Visual Interdev running
internally, connecting to an external SQL server.
Anyone had the same problem? Is there a way around it, that doesn't involve
moving the exchange server to the Internal LAN?
Many thanks
JL.
