Hi Simon, You can accomplish all three, it'll take a little bit of tweaking. The trust relationships should not be an issue, but depending on what you want to accomplish, you will need to enter the same accounts and passwords in each domain. However, I don't recommend putting enterprise Groupware products on a firewall. Its like putting your wallet out on the front yard before you go to bed at night and expect it to be there in the morning :-) HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: Simon Weaver [mailto:Simon.Weaver@xxxxxxxx] Sent: Saturday, June 28, 2003 11:23 AM To: [ISAserver.org Discussion List] Subject: [isalist] Site Connectivity with ISA / VPN http://www.ISAserver.org Hello everyone I would like an opinion on this matter and am grateful for any advice. I have the potential to get a client on SBS2k. They have 3 offices where they would like teh following requirements: 1) Email anywhere they go at each site 2) VPN connectivity, so someone at site 1, can access site 2 or site 3 from their PC, and Visa Versa 3) Web Based Email Now with SBS2k, I dont believe Point 1 is going to be easy, but if they were to go for Web Based Email then in my eyes, point 3 and point 1 will do the job. Point 2, I am unsure about :o( I know ISA has VPN Wizards, but now sure how this connectivity would work in SBS2000. In my eyes, I would look at connecting Site1 to Site2 and then Site2 to Site3. But as SBS does not support Trust Relationships I think I am going to be running into authentication issues here. Does anyone have any advice on this matter, and whether SBS2k would be able to do this? Opinions and feedback is great :o) Simon Weaver Technical Consultant MCSE+Internet / MCSE Windows 2000 Integrated Solutions Corp. Ltd http://www.iscl.net <http://www.iscl.net/>