Snort mailing list archives

Re: tcpdump and snort report 2 different TTL values


From: Chris Green <cmg () snort org>
Date: Wed, 27 Mar 2002 06:52:26 -0500

Safka <safka () triad rr com> writes:

When I read the file back in using tcpdump, i see the ttl value of 128
(both hosts are on the same segment). 

When I read the file using Snort I get 2 alerts - one with the tool's
TTL value of 255 and one with the w2k ttl of 128. I can live with this
however I was wondering why this behavior is occuring.

Any thoughts ?

Smells like a unsigned/signed bug in readback though not sure.  Would
you send me the pcap for the packet?


-- 
Chris Green <cmg () snort org>
"I'm beginning to think that my router may be confused."

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