[Snort-users] snort 1.8.3 splicing packets
scottn at ...4526...
Thu Jan 10 09:17:04 EST 2002
Anyone had strange behaviour out of Snort 1.8.3? I've had two really
strange incidents being:
1. Snort seems to be splicing packets - i.e. If I nmap a machine and
surf the web at the same time, I get ICMP/HTTP spliced packets in my
MySQL DB. At first it looked really scary, like ICMP tunnelling or
something to that effect, but when I realised that I controlled what
went into the ICMP packet, I dropped a Trinux box on the network and
dumped the packets alongside snort. The result was astounding - no HTTP
data in my ICMP packets after all :)
2. A friend of mine has just installed 1.8.3 and seems to be having some
difficulty reading some of the tcpdump format log files with tcpdump ||
snort. It seems that it has some difficulties with the pcap.
tcpdump: pcap_loop: bogus savefile header
This is very strange to me as both the tcpdump and the snort were
compiled with a fresh 0.6.2 pcap from tcpdump.org. What's even stranger
is he can read SOME of the files that snort writes, but not others!!!
Any ideas, questions, comments?!
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