nanog mailing list archives

Re: Level3 routing issues?


From: "Scott Granados" <scott () wworks net>
Date: Fri, 24 Jan 2003 23:54:18 -0800


also seeing some udp 6667 irc is usually tcp 6667 so this looks odd.

----- Original Message ----- 
From: "Todd A. Blank" <todd.blank () ipoutlet com>
To: <scott () wworks net>
Cc: <nanog () merit edu>
Sent: Friday, January 24, 2003 11:10 PM
Subject: RE: Level3 routing issues?


It's 1434 and I also see 137 138 551.  Big DDOS.  It's hitting
everything on our network coming from lots of different places...

-----Original Message-----
From: Scott Granados [mailto:scott () wworks net] 
Sent: Saturday, January 25, 2003 1:41 AM
To: Alex Rubenstein
Cc: hc; nanog () merit edu
Subject: Re: Level3 routing issues?


We just had a box inside one of my customers networks start sending tons
of small packets not sure what kind yet.


On Sat, 25 Jan 2003, Alex Rubenstein wrote:



I dunno about that. But, I am seeing, in the last couple hours, all
kinds
of new traffic.

like, customers who never get attacked or anything, all of a sudden:


http://mrtg.nac.net/switch9.oct.nac.net/3865/switch9.oct.nac.net-3865.ht
ml


We are seeing this on ports all across out network -- nearly 1/2 our
ports
are in delta alarm right now.

Anyone else?

I will dig more to look at the traffic.




On Sat, 25 Jan 2003, hc wrote:


Anyone seeing routing problems with Level3 at this hour? I just
witnessed tons of prefixes behind level3's network withdraw. Any
information on what is happening (if you know) would be great.
Thanks!

-hc




-- Alex Rubenstein, AR97, K2AHR, alex () nac net, latency, Al Reuben --
--    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --








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