[Oisf-users] Modifying a rule

James Moe jimoe at sohnen-moe.com
Mon Apr 27 23:55:25 UTC 2015


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Hello,
  suricata 2.0.7
  linux 3.16.7-21-desktop x86_64

  One of the contributors to fast.log is a VLAN alert. It is a
broadcast emitted every two seconds from our Dish TV receiver. I
decided to modify the rule so that it would ignore packets from that
device.
  Because it is a broadcast (I guess), there is no IP address in the
packets, just the MAC address.

  How do I rewrite the rule to ignore a particular MAC address?

  This is the rule slightly modified to somewhat limit its scope:
alert pkthdr [$EXTERNAL_NET] any -> $HOME_NET any (msg:"SURICATA VLAN
unknown type"; decode-event:vlan.unknown_type; sid:2200067; rev:1;)

- -- 
James Moe
moe dot james at sohnen-moe dot com
520.743.3936
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