nanog mailing list archives

Re: Dreamhost hijacking my prefix...


From: Jeroen Wunnink | Atrato IP Networks <jeroen.wunnink () atrato-ip com>
Date: Fri, 11 Jan 2013 17:01:12 +0100

Here at/as AS5580 I no longer see it announced as a /20, only your own /18:

#sh ip bgp routes 150.182.192.0 255.255.192.0 longer-prefixes
Number of BGP Routes matching display condition : 4
Searching for matching routes, use ^C to quit...
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH
       S:SUPPRESSED F:FILTERED s:STALE
       Prefix             Next Hop        MED        LocPrf Weight Status
1      150.182.192.0/18   80.94.64.10                400 0      BMI
         AS_PATH: 11164 10490 3450 14209
2      150.182.192.0/18   80.94.64.10                400 0      MI
         AS_PATH: 11164 10490 3450 14209
3      150.182.192.0/18   80.94.64.10                400 0      MI
         AS_PATH: 11164 10490 3450 14209
4      150.182.192.0/18   80.94.64.10                400 0      MI
         AS_PATH: 11164 10490 3450 14209


On 1/11/13 4:49 PM, Jeff Kell wrote:
Robtex would beg to differ... you show peered with AS42861, perhaps
someone (else) is looping their advertisements?

_R_egistered
_O_ther side
_B_GP visible   Peer
OB      AS174 COGENT /PSI
B       AS4323 TWTC Autonomous system for tw telecom .
B       AS4826 VOCUS-BACKBONE-AS Vocus Connect International Backbone Vocus
Communications Level 2, Vocus House 189 Miller Street North Sydney NSW 2060
B       AS5580 ATRATO-IP / Atrato IP Networks
B       AS6461 MFNX MFN - Metromedia Fiber Network
B       AS6939 HURRICANE Electric
B       AS7575 AARNET-AS-AP Australia's Research and Education Network (AARNet3)
B       AS7922 COMCAST-IBONE Comcast Cable Communications, Inc. 1800 Bishops
Gate Blvd Mt Laurel, NJ 08054 US
B       AS8359 MTS Dummy description for
B       AS10912 INTERNAP-BLK Internap Network Services
B       AS10913 INTERNAP-BLK Internap Network Services
B       AS12989 HWNG Eweka Internet Services B.V.
B       AS36351 SOFTLAYER Technologies Inc.
B       AS42861 PRIME-LINE-AS Dummy description for



On 1/11/2013 10:42 AM, Kenneth McRae wrote:
Jeff,

We are not announcing the prefix in question nor do we peer with AS42861.


--
Best Regards,



Kenneth McRae
*Director, Network Operations*
kenneth.mcrae () dreamhost com
Ph: 818-447-2589
www.dreamhost.com



On Fri, Jan 11, 2013 at 7:23 AM, Jeff Kell <jeff-kell () utc edu> wrote:

     Not sure how widespread their "leakage" may be, but Dreamhost just
     hijacked one of my prefixes...

     > ====================================================================
     > Possible Prefix Hijack (Code: 10)
     > ====================================================================
     > Your prefix:          150.182.192.0/18:
     > Update time:          2013-01-11 14:14 (UTC)
     > Detected by #peers:   11
     > Detected prefix:      150.182.208.0/20
     > Announced by:         AS26347 (DREAMHOST-AS - New Dream Network,
     LLC)
     > Upstream AS:          AS42861 (PRIME-LINE-AS JSC "Prime-Line")
     > ASpath:               8331 42861 42861 42861 26347

     Anyone have a contact there?  ASinfo gives netops () dreamhost com
     where I
     have submitted a report, but so far no joy...

     Jeff






--
Best Regards,



Kenneth McRae
*Sr. Network Engineer*
kenneth.mcrae () dreamhost com
Ph: 323-375-3814
www.dreamhost.com





--

Jeroen Wunnink
Network Engineer
Atrato IP Networks
jeroen.wunnink () atrato-ip com
Phone: +31 20 82 00 623



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