Jacques Manukyan <mlfree...@streamingedge.com> writes:
> Frederique Rijsdijk wrote:
>> Hello,
>>
>> Is there a way in FreeBSD to combine a number of network interfaces to
>> one virtual interface on which I can tcpdump all the traffic of those
>> interfaces at once?
>>
>
> You're talking about bridging. Look at
> http://www.freebsd.org/doc/en/books/handbook/network-bridging.html
>
> Section 31.5.7.1 is what you're asking for.
I don't think he wants to forward the traffic between those interfaces,
though; just dump them all together. I'm not sure, though.
If I'm right, I don't think tcpdump can do that directly. One idea
might be to run a firewall to choose the packets and to forward a copy
to a dummy interface that can be monitored.
--
Lowell Gilbert, embedded/networking software engineer, Boston area
http://be-well.ilk.org/~lowell/
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