Hi Everyone! I'm setting up a VPN over ADSL between 3 remote sites using PIX501 Firewalls. All 3 sites have their own Windows NT4.0 Domains. I can ping all 3 PDC's remotely (From the other LAN's) but if I try to ping any WIndows 9x clients from a remote LAN I get Request Timed Out. (All Windows 9x clients can ping the other two servers not on their LAN!) For a short term fix I have installed IIS on all Servers and everyone is transferring data over FTP but I think I'm right in saying that I should be able to get this working over SMB. DO I need to establish trusts between the domains? or am I barking up the wrong tree? Any help would be appreciated. Thank you in advance