Snort mailing list archives

stream5 and track_icmp


From: elof () sentor se
Date: Wed, 13 Mar 2013 13:51:52 +0100 (CET)

Stream5 track_icmp is disabled by default in snort. Why?

README.stream5:
"ICMP messages are tracked for the purposes of checking for unreachable 
and service unavailable messages, which effectively terminate a TCP or UDP 
session."

Isn't this a good thing, to let snort bail early on TCP/UDP streams that 
are terminated and this is informed via an ICMP message?

/Elof

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