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From: Chuck Swiger <cswiger@mac.com>
To: Damian Weber <dweber@htw-saarland.de>
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Date: Thu, 10 Apr 2008 16:07:25 -0700
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Cc: freebsd-stable@freebsd.org
Subject: Re: RELENG_6_3 ping and DUP packets
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On Apr 10, 2008, at 1:58 PM, Damian Weber wrote:
> But here is the problem, pinging the machine from remote gives
>
> A.B.C.X$ ping A.B.C.D
> PING A.B.C.D (A.B.C.D): 56 data bytes
> 64 bytes from A.B.C.D: icmp_seq=0 ttl=64 time=0.272 ms
> 64 bytes from A.B.C.D: icmp_seq=0 ttl=255 time=0.391 ms (DUP!)

Please run "tcpdump -e icmp" on this box and repeat your testing.  It  
will be most interesting to know whether you're seeing the same MAC  
address....

-- 
-Chuck