Yes, that was my original assumption - that the users, mail server and inside interfaces if the ISA servers would all be on the same subnet. What I was referring to in what you highlighted below is if you have multiple subnets behind the 1st ISA server and the mail server needs to communicate all the local subnets, you'll have to manually add routes to the mail server for the other local subnets.
From: Liby Philip Mathew [mailto:lmat...@path-solutions.com] Sent: Thursday, October 08, 2009 10:52 PM To: MS-Exchange Admin Issues Subject: RE: OT - Multiple ISA Tim, Sorry I forgot to mention that both the ISA servers will be in a single subnet referring to the highlight. Is it possible to have 2 ISA servers in a single subnet? Regards Liby From: Tim Evans [mailto:tev...@sparling.com] Sent: Thursday, October 08, 2009 6:05 PM To: MS-Exchange Admin Issues Subject: RE: OT - Multiple ISA You can do that - just make sure that the default gateway on the mail server points to ISA2. If the mail server needs to talk to other local subnets, you'll need to manually add the routing to them, but it should work just fine. My only question is why you can't use the 1st ISA Server for this. It should be able to publish a mail server and handle browsing without any problem. ...Tim From: Liby Philip Mathew [mailto:lmat...@path-solutions.com] Sent: Thursday, October 08, 2009 4:35 AM To: MS-Exchange Admin Issues Subject: OT - Multiple ISA Hi, ISA 2006 Standard edition I have a 3-leg ISA configured (ISA1 - 192.168.0.1) I need to install another ISA 2-leg configuration (ISA2 - 192.168.0.2). My internal network is 192.168.0.0/24 My DMZ is 192.168.200.0/28 DMZ contains Edge and Web server. Internal mail server is 192.168.0.10 I want all the user traffic such as Web browsing and user access from Internal n/w to go through ISA 1 and mail server be published on ISA2. Can I have more than 1 ISA in a network? Is it supported to have more than 1 ISA in a network? I tried googling and couldn't find anything concrete. Appreciate any assistance. Regards Liby ________________________________ Disclaimer [The information contained in this e-mail message and any attached files are confidential information and intended solely for the use of the individual or entity to whom they are addressed. This transmission may contain information that is privileged, confidential or exempt from disclosure under applicable law. If you have received this e-mail in error, please notify the sender immediately and delete all copies. If you are not the intended recipient, any disclosure, copying, distribution, or use of the information contained herein is STRICTLY PROHIBITED. Path Solutions accepts no responsibility for any errors, omissions, computer viruses and other defects.]