tcpdump filter not functioning correctly with igb on FreeBSD 11.1

Alarig Le Lay alarig at swordarmor.fr
Wed Feb 7 09:43:57 UTC 2018


On mar.  6 févr. 22:49:54 2018, David Athay wrote:
> 
> 
> > On 6 Feb 2018, at 22:47, Eugene Grosbein <eugen at grosbein.net> wrote:
> > 
> > Well, that explains everything. You should use "vlan and not port
> > 22" and "vlan and host X.X.X.X" (same without "not") when filtering
> > vlan-tagged traffic as documented in the pcap-filter(7) manual page
> > or else you get wrong results. "Works as intended".
> > 
> > Deinstall extra tcpdump/libcap packages, if you do not need them.
> > 
> > 
> 
> That worked, thanks!

If you want to use only 'host' or 'port', you could also tcpdump on the
tagged interface.

-- 
alarig
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