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To: freebsd-questions@freebsd.org
From: Ksenia Marasanova <ksenia@ksenia.nl>
Date: Mon, 8 Mar 2004 19:06:46 +0100
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Subject: tcpflow and lo0
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Hi list,

Just want to make sure this is not a FreeBSD issue:
Is anyone using tcpflow to sniff packets on loopback interface? When I 
try

# tcpflow -c -v -i lo0
(-v to get all possible debug messages)

and then ping localhost for example, I always get:

tcpflow[31634]: warning: received non-AF_INET null frame (type 33554432)

I am using FreeBSD -stable.

Thanx
Ksenia.