North American Network Operators Group
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Re: Possible New type of DOS attack

  • From: Mike Lewinski
  • Date: Mon Mar 25 16:53:50 2002 
It was probably a large packet flood to random destination ports. Some of
them happened to hit rshell. What really took out your routing procs was
likely a huge packet flood, but due to volume you may not have been able to
access normal interface counters (i.e. MRTG doesn't get any SNMP packets
back when OSPF goes bye-bye).

Mike

----- Original Message -----
From: "Vinny India" <[email protected]>
To: <[email protected]>
Sent: Monday, March 25, 2002 2:44 PM
Subject: Possible New type of DOS attack


>
> Anyone out there ever witness an attack were you received several RSHPORT
> attempts (5 per second) on a cisco router from different spoofed source
> addresses. It was capable of taking out BGP and OSPF sessions on the
router.
>
>