MicroSoft amplification?

Thu Aug 2 03:54:32 UTC 2001

The DUP packets resemble WLBS (Windows Load Balancing Service) in action.
What platform did you ping it from? A unix host? Windows ping command does
not show the extra icmp responses.

Just a thought.

-----Original Message-----
From: Steven M. Bellovin [mailto:smb at research.att.com]
Sent: Wednesday, August 01, 2001 8:18 PM
To: Tony Rall
Cc: nanog at merit.edu
Subject: Re: MicroSoft amplification? 

In message <OF3DD9155A.FA5F9232-ON88256A9B.00804F54 at almaden.ibm.com>, "Tony
Ral
l" writes:
>
>I see it too, on that address and on the second of the 3 addresses mapped 
>to www.microsoft.com (the third address doesn't respond at all).
>
>Most likely this is due to a not very smart load distribution system.

I'm told that that is indeed the case.  Well, strike the "not very 
smart" part -- I wasn't told that -- but I was told that it is indeed
because of the load distribution system.

		--Steve Bellovin, http://www.research.att.com/~smb