What kind of communication do you mean? Kerberos authentication? I believe that uses udp port 88. Ray at home > -----Original Message----- > From: windows2000-bounce@xxxxxxxxxxxxx > [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Berry > Does anyone know what port/protocol AD uses to communicate? > I have a remote site that's connected by VPN and uses a > seperate AD Forest. I'm building a machine for that site, > and it would be handy if we could have it join that domain > from here in the workshop. Right now it doesn't work, and > I'm thinking it's probably a firewall issue. ******************************************************** This Weeks Sponsor StressedPuppy.com Games Feeling stressed out? Check out our games to relieve your stress. http://www.StressedPuppy.com ******************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm