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Date:      Fri, 18 Jun 2004 15:53:30 +0100
From:      Robert Downes <>
Subject:   Blocked outbound traffic - what is it?
Message-ID:  <>

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Having set up IPFW for NAT + stateful rules (as posted to this list 
recently, using skipto rules), my firewall setup seems to be doing a 
good job. GRC.COM reports all service ports as stealthed, and I seem to 
have no problem browsing web pages, checking mail, etc.

But calling ` /var/log/security | grep out` gives a lot of reports of 
blocked outbound traffic to port 80 on legitimate websites. And 
occassionally to port 110 on legitimate mail servers.

Seeing as I'm not having a problem with web browsing, and my mail 
*seems* to be collected without complaint from the client, why is so 
much outbound traffic being blocked? What are these packets doing to 
offend the IPFW ruleset?


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