[Bro] Number of simultaneous pcap_open calls per interface
Jason Chambers
jchambers at ucla.edu
Wed Apr 21 22:28:46 PDT 2010
Hello all,
Can anyone explain the number of, and reasoning behind, multiple
pcap_open calls to the same interface ? Is one used for each type of
analyzer ?
While experimenting with certain hardware I noticed a continuous stream
of errors due to exclusive usage limitations of the capture card.
(And if it's not too confusing I'd be interested to hear if and how the
Zero-copy buffer mode detailed in bpf(4) on FreeBSD might be utilized
within Bro).
Regards,
--Jason
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