Snort mailing list archives

max bpf filter size?


From: Jason Haar <Jason.Haar () trimble co nz>
Date: Mon, 19 Jul 2010 12:03:50 +1200

 Hi there

Simple question: I have a large-and-growing BPF filter, and am getting
nervous I'm going to hit some maximum size at some time. I'm already
doing it by putting the filter into a file (ie it's not shell-bound),
but I'm guessing there's some limit? Also, I'm doing this with both
snort and daemonlogger, so don't know if there are application-specific
limits that are different from pcap library limits?

Any help appreciated :-)

-- 
Cheers

Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1


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