Snort mailing list archives
Re: Snort 1.8.7b6 not listen to BPF filters
From: "Andrew R. Baker" <andrewb () snort org>
Date: Fri, 19 Jul 2002 16:28:46 -0400
Michael Scheidell wrote:
Ok, had to try. :)/usr/local/bin/snort -doDI -m 022 -z \ -c /usr/local/etc/snort.conf -i rl0 -l /var/log/snort \ not src host 10.1.1.10 does not record tcp attacks.Ok, correct me if I'm wrong: But that's what you want, right? If that's the case then it the failure must be in the -F option.source of attack was 216.241.67.74. Destination was 10.1.1.10 If I do this from .74: lynx http://scanner.secnap.net/scripts/cmd-exe?dir+c../../c WITHOUT BPF filter, it loggs attack. If I do it WITH bpf filter, it ignores it (and 100% of the TCP attacks worldwide) didn't used to do that, used to work bpf filter is not new!Ping thought, but does TCPdump show the same behavior when passing it a 'file' of filters?snort fails if I have not src host on command line at end as well as -F option.
Try running Snort without the "-z" commandline option. You are telling Snort to ignore packets that are not part of an established session, but are only letting it see half the conversation you want to see alerts for.
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Current thread:
- Snort 1.8.7b6 not listen to BPF filters Michael Boman (Jul 18)
- Re: Snort 1.8.7b6 not listen to BPF filters Michael Scheidell (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Erek Adams (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Michael Scheidell (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Erek Adams (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Michael Scheidell (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Erek Adams (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Andreas Östling (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Michael Scheidell (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Andrew R. Baker (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Erek Adams (Jul 19)
- Re: Snort 1.8.7b6 not listen to BPF filters Michael Scheidell (Jul 19)