I have 1 x server with exchange 2000 on it this runs DHCP / DNS / Etrust Innoculate ver 6.0 I have another server with 2 nics runing ISA server 1 nic has fixed internal address the other has a fixed external address connected to our ADSL router the version of ISA server I am running is the Standard edition the is not intergrated into the Active Directory the problem i have is that i cannot ping or telnet from the Exchange server to the external nic or our ISP i do not want to publish our mail server i only want it to send and recieve mail through the ISA Server how can this be achieved Also our Anti Virus software on the Exchange server uses FTP access to donwload the updates how can this be achieved through ISA server Any help would be appreciated Rob