[Snort-users] defragmentation issue

Joel Esler (jesler) jesler at ...589...
Wed Dec 21 12:24:00 EST 2016

We’re going to need some more info here:


Joel Esler | Talos: Manager | jesler at ...589...<mailto:jesler at ...589...>

On Dec 21, 2016, at 12:19 PM, Nouar Ismail <nouaresmail at ...11827...<mailto:nouaresmail at ...11827...>> wrote:

I have pcap file of 450 icmp fragmented packets.
when i pass it to snort with only icmp rules ..i get no alerts. when i add an ip rule i get exactly 450 alerts.
i set up the frag3_global: memcap 67108864, max_frags 131072
frag3_engine: : policy last detect_anomalies
does anybody have any idea of what is the problem ?!
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