Hi Tom That doesn't explain why, if I have a vpn between isa and a linksys with the allow all protocol rules going both ways does it?? I don't have exchange on a dmz...in fact I don't have a dmz...yet. Steve -----Original Message----- From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Sunday, August 15, 2004 9:26 PM To: Isa Weblist Subject: [isalist] RE: Microsoft CIFS Port TCP 445 and VPN's http://www.ISAserver.org Hi Steve, Check the ISA 2004 Exchange Kit article on how to make the FE Exchange Server in the DMZ support intradomain communcations between the DMZ segment and the BE Exchange Server on the Internal network. The protocols required are listed there is a nice table :-) Tom www.isaserver.org/shinder Get the book! Tom and Deb Shinder's Configuring ISA Server 2004 http://tinyurl.com/3xqb7 MVP -- ISA Firewalls -----Original Message----- From: Steve Moffat [mailto:steve@xxxxxxxxxxxxxxxxxxxxxxxxxx] Sent: Sunday, August 15, 2004 7:21 PM To: [ISAserver.org Discussion List] Subject: [isalist] Microsoft CIFS Port TCP 445 and VPN's http://www.ISAserver.org Just managed to dcpromo a server across an ipsec vpn between a linksys router, (here) and my domain in Scotland. Hah easy peasy you would think....mmmmmmm...let me tell you, I was tearing my hair out...couldn't do it....kept getting to the create ntds object bit, then it would fail with a cannot find the domain controller for this domain.....arrgggh. The only protocol being blocked by the remote ISA 2004 was ms cifs on tcp 445...so i went looking and found this little titbit... "Author Topic: Microsoft CIFS Port 445 TonyR Junior Member Member # 11867 Rate Member posted July 24, 2004 09:34 AM ------------------------------------------------------------------------ -------- ISA is denying a connection to VPN clients on port 445 What is this used for and what is the 'fix' Thanks ------------------------------------------------------------------------ -------- Posts: 10 | Registered: Jan 2003 | IP: Logged tshinder Moderator Member # 11 Member Rated: posted July 24, 2004 07:22 PM ------------------------------------------------------------------------ -------- Hi Tony, VPN doesn't use TCP or UDP 445. HTH, Tom" Ahh I hear you say...another beginner who doesn't know what he's doing.......well, I created an ms cifs protocol....and allowed it from here to internal...guess what, the dcpromo ran without a hitch from start to finish....answer that one Dr Shinder.......:>)) Steve This E-Mail is confidential. It is not intended to be read, copied, disclosed or used by any person other than the recipient named above. Unauthorised use, disclosure, or copying is strictly prohibited and may be unlawful. Optimum IT Solutions disclaims any liability for any action taken in connection of this E-Mail. The comments or statements expressed in this E-Mail are not necessarily those of Optimum IT Solutions or its subsidiaries or affiliates. administrator@xxxxxxxxxxxxxxxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: steve@xxxxxxxxxxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx