I Have a 64 k line which i am using for
connecting to the internet so that poeple
can send and receive mail through microsoftexchange server 5.5. I have implemented NAT
and access-list to permit mail through the
NAT interface. What stratles me is that the
64 k line seems to be at peak use all the time
and I dont believe this is the mail traffic
which is causing this. How can I check traffic typeS
passing through this interface and their port numbers
so i can block them? i.e only accept pop3 and smtp and probably www.