<div dir="ltr"><div>I actually found the thread a couple of weeks ago and went back to read it! That's really awesome that everything is working now! Thanks for the update (success stories are always motivating :))<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Mar 17, 2019 at 3:14 PM Greg Grasmehr <<a href="mailto:greg.grasmehr@caltech.edu">greg.grasmehr@caltech.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello All,<br>
<br>
Some of you may remember in early-mid 2018 I was essentially pulling my<br>
hair out trying to figure out why Suricata was apparently missing alert<br>
traffic on our 10G wire. Network claimed everything was hunky dory on<br>
their end, and I spent countless hours testing different configs and<br>
rule sets trying to determine what was going on.<br>
<br>
Fortunately I attended Zeekcon last October and one of the presentations<br>
got me looking at our Zeek data and then to thinking.<br>
<br>
Long story short - one of the SPANS feeding our Arista switch turned out<br>
to be saturated and dropping packets on the edge switch feeding the<br>
Arista. Once that was rectified Suricata was finally receiving all<br>
network data and with Hyperscan enabled easily handling the traffic,<br>
even during micro bursts exceeding 10G, and this is with more than 57000<br>
rules enabled. As far as I can tell it doesn't miss a thing now. w00t!<br>
<br>
-- <br>
Sincerely,<br>
<br>
Greg Grasmehr<br>
Lead Information Security Analyst<br>
California Institute of Technology (Caltech)<br>
GPGMe: 38E2 F9BD A95E 9824 20AB 331A 9E29 D1A1 AAEE 5F42<br>
<a href="http://pgp.mit.edu:11371/pks/lookup?op=vindex&search=0x9E29D1A1AAEE5F42" rel="noreferrer" target="_blank">pgp.mit.edu:11371/pks/lookup?op=vindex&search=0x9E29D1A1AAEE5F42</a><br>
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