BGP Exploit

Patrick W.Gilmore patrick at
Wed May 5 18:47:54 UTC 2004

On May 5, 2004, at 2:39 PM, Smith, Donald wrote:

> No. The router stays up. The tool I use is very fast. It floods the 
> to the point that that interface is basically unusable but the router
> itself stays up only the session is torn down. I did preformed these
> tests in a lab and did
> not have full bgp routing tables etc ... so your mileage may vary.

That is DAMNED impressive.  I've never seen a router which can take a 
Gigabit of traffic to its CPU and stay up.  What kind of router was 
this?  You mentioned Juniper and Cisco before, but I know a cisco will 
fall over long before a gigabit and a Juniper either does or drops 
packets destined for the CPU (but keeps routing).

Perhaps it was rate limiting the # of packets which reached the CPU, 
and the session stayed up because the "magic" packet was dropped in the 
rate limiting?


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