[outages] Fwd: AS3549 Level3/GBLX carrying routing for 10.0.0.0/8

[Jay Ashworth]

>From NANOG: If you're connected to AS3549, and you do *not* have
inbound BGP filters (you really, really should), this might bite you
or your customers.

Cheers,
-- jra

----- Forwarded Message -----
> From: "Yang Yu" <yang.yu.list at gmail.com>
> To: "NANOG list" <nanog at nanog.org>
> Sent: Sunday, July 21, 2013 12:26:20 AM
> Subject: AS3549 Level3/GBLX carrying routing for 10.0.0.0/8
> It appears AS3549 is announcing 10.0.0.0/8. I noticed it from an
> AS3549 customer.
> 
> From GBLX looking glass, ATL1
> 
> traceroute
> Protocol [ip]: ip
> Target IP address: 10.0.0.1
> Source address:
> Numeric display [n]: n
> Timeout in seconds [3]: 1
> Probe count [3]: 2
> Minimum Time to Live [1]: 1
> Maximum Time to Live [30]: 30
> Port Number [33434]:
> Loose, Strict, Record, Timestamp, Verbose[none]:
> Type escape sequence to abort.
> Tracing the route to 10.0.0.1
> VRF info: (vrf in name/id, vrf out name/id)
> 1 te3-1-10G.par9.CTA1.GRU.gblx.net (67.16.142.26) 120 msec 124 msec
> 2 122.5.125.189.static.impsat.net.br (189.125.5.122) 120 msec 120 msec
> 3 10.0.0.1 [AS 262487] 124 msec 120 msec
> 
> Apparently the customer didn't have proper inbound filter......
> Reply from 10.0.0.1: bytes=32 time=132ms TTL=61

-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274