[Snort-users] stream5 and track_icmp

Joel Esler jesler at ...1935...
Sat Mar 16 16:23:59 EDT 2013


Bottom line is, this feature isn't fully tested.  We see it as experimental.

--
Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire

On Mar 13, 2013, at 8:51 AM, elof at ...6680... wrote:

> 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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