I've recently installed as ISA 2000 Server on a SmallBusiness 2000 Server (Windows 2000 SP4/AC/Exchange/ISA in one server). I have 2 NIC's in the server, the "external" NIC is directly connected to a ADSL modem, and has a defined IP.
The local clients can ping the "internal" interface, but i cant ping the external interface on the server, from another computer on the internet, ex. my own machine at my home. I can port scan the server, but my scanner says it a dead "ping dead" server, and once in a while it detects port 80, even if i havent published a web server :-| When the ISA wasnt installed i could easily ping the server, even port scan the server (dont worry, its experimental, and its my own server).
All outgoing traffic is almost blocked. My exchange POP3 connector cant retrieve mail, and my SMTP connector can send mail. My Real player cant stream anymore. And my symantec antivirus, and sybari antigen can update their virus definitions and scanners.
What am i doing wrong?