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Date:      Tue, 3 Aug 1999 20:25:12 -0300 (ADT)
From:      Michael Richards <026809r@dragon.acadiau.ca>
To:        Darren Reed <avalon@coombs.anu.edu.au>
Cc:        security@FreeBSD.ORG
Subject:   Re: Odd ICMP packets being logged
Message-ID:  <Pine.GSO.4.10.9908032020430.11002-100000@dragon>
In-Reply-To: <199908032242.IAA27809@cheops.anu.edu.au>

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On Wed, 4 Aug 1999, Darren Reed wrote:

> > I'm seeing some odd packets being logged via my ipf. I've looked around
> > but not really found any good resources on ipfilter/ipnat. I can't find
> > this documented:
> > 03/08/1999 17:03:03.370491 vx0 @0:5 b ###.###.###.### -> 10.23.3.2 PR icmp
> > len 20 43 icmp 8/0
> 
> Date Time interface group:rule block sourceIP -> destip PR protocol len
> ip-header-length ip-length icmp type/code
> 
> It's actually coming from rule #5.  Type 8 is ECHO so it's a ping packet.

Hrm. That's kinda odd...
Rule #5 is: block return-rst in log quick on vx0 proto tcp from any to any
port = 25

Can't see why that would be logging an ICMP...

-Michael



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