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Date:      Mon, 06 Aug 2001 15:57:47 +0200
From:      sthaug@nethelp.no
To:        henry@techiebod.com
Cc:        freebsd-net@freebsd.org
Subject:   Re: BPF does not pick up loopback activity
Message-ID:  <13956.997106267@verdi.nethelp.no>
In-Reply-To: Your message of "Mon, 6 Aug 2001 14:35:38 %2B0100 (BST)"
References:  <20010806140314.O37365-100000@localhost>

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> Note that the packets sent to the local IP address are not picked up by
> tcpdump.  This can be tried with any traffic type, I have just used ping
> as an example.
> 
> Is this the correct/desired behaviour?  If it is, is there any other way
> to capture these packets?

This is the expected behavior, because these packets never touch the
Ethernet. Try capturing the traffic via lo0.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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