I published my exchange 5.5 server, using the secure amil wizard in ISA. In the protocol rule that the wizard created i deselected every protocol, except the ones that Exchange needs, like SMTP, POP3, HTTP. ect, ect. I publsih POP3, POP3S, SMTP, SMTPS, IMAP4, IMAPS, and RPC. What i cant understand is when i look at the firewall log, i see a ton of traffic, that looks like this. 169.254.15.255, is not an ip that i use on our network, we are all 192.168.0.0/24. Someone please help me to understand what is going on here. 192.168.0.2 N 2002-08-25 00:08:31 fwsrv SENTINAL 169.254.15.255 2685 60998 2685 UDP UdpMap 0 2 9154