Snort mailing list archives

Active response not working in 2.9.0.4 ?


From: "Tudor Panaitescu" <TPanaitescu () colorcon com>
Date: Fri, 18 Mar 2011 16:15:27 -0500



Hi

Anyone w/ any suggestions here ?

Thanks,
TP

__________________

Hi
I just compiled and installed 2.9.0.4 on RHEL5 and 6 boxes (of course I
have daq, libpcap1, libnet and libdnet on the systems) and I've noticed
that rules configured w/ resp:reset_both,icmp_all don't seem to be
resetting connections as supposed to.

Snort was compiled w/: --enable-ipv6 --enable-gre --enable-mpls
--enable-targetbased --enable-decoder-preprocessor-rules --enable-ppm
--enable-perfprofiling --enable-zlib --enable-active-response
--enable-normalizer --enable-reload --enable-react --enable-flexresp3.

Also in the config file, snort.conf, I have:
....
config response: device <interface> attempts 5
.....
preprocessor stream5_global: max_tcp 8192, track_tcp yes, track_udp yes,
track_icmp no, max_active_responses 5, min_response_seconds 1

Even the log file upon starting up snort says:
......
Send up to 5 active responses
Wait at least 1 seconds between responses
..........

I even put a sniffer on the interface and I didn't see any icmp sent to the
source of the packets that triggered the rule w/ resp

Anyone can help w/ this ?

Thanks in advance
Tudor
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