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Requested English...
Authored by: macubergeek on Aug 27, '03 10:40:30AM

When you surf the internet, your computer talks to the other computer....
Your computer says:
1. Hi! can I talk to you?
the other computer says:
2. Yeh sure I'm not too busy
Your computer says:
3. Ok I got something important to say
Then your computer sends request for a web page to the other computer and the other computer sends you the web page.

Above was the three-way-handshake of TCP/IP
A firewall keeps information called "state" which is simply...
if I permit #1. above, I'll also let #2 and #3 as part of the pre-existing conversation. The firewall keeps a table of all the ongoing conversations called a State table.

What I was saying was ipfw dosn't do this with icmp.



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