Hi, I must connect an odd online banking software through ISA-Server. The folks at the bank told me to open port 866. So I set up a packet filter on port 866 (TCP) with the following settings: Mode: Allow Filter Type: IP-Protocol: TCP Direction: Both Local Port: Fixed Port Local Port Number: 866 Remote Port: Fixed Port Remote Port Nr: 866 Local Computer: This ISA Server's external IP Address: xxx.xxx.xxx.xxx (IP of NIC linked to our DSL router) Remote Computer: All Remote Computer If I try to open a telnet connection on xxx.xxx.xxx.xxx with port 866, I fail. A port scan with superscan fails also.. Online banking doesnt work. Packet Filtering is enabled. IP routing is enabled. ? Regards Christian Jean Weiland best solutions AG Germany E-mail christian.weiland@xxxxxxxxxxxxxxxx http://www.bestsolutions.ag