Suspecious anycast prefixes

Bill Woodcock woody at pch.net
Thu May 5 07:35:23 UTC 2011


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256


On May 4, 2011, at 8:23 PM, Yaoqing(Joey) Liu wrote:

> Hi NANOG,
> 
> I manually extracted the origins and their org info for the announced
> block of prefixes. All these prefixes were observed being originated
> by at most four ASNs simultaneously. I suspect they provide anycast or
> IXP service, but not positive. Please confirm my conjecture if you
> know them. 

The IXP subnets are here:

http://www.pch.net/ixpdir/ip_city_country.pl

                                -Bill




-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (Darwin)

iQIcBAEBCAAGBQJNwlM7AAoJEG+kcEsoi3+HXD8P/0Ufpu3KDRZsAzbV6PVcUjIU
HtGl2aTTkPntLcaEZgItRA1m9GBbiIdDBRsQrR2IDU9K9py5MEhnllmC+JojJpJ9
xtrxEnisLNiZfCHhy0AHHhHZfbvu9UWpXbHVTuezL1HyRTCscmdyQWJtGYug59p6
beI9kVlP7laOY6pyrb2rXCDPs0zaVqof4XwWlD5HQMQJcdw5GyyON9ddz7WXROk5
Q4be9G7w79L164r4nkDDTreZ7yWGqUFSGwXYTRpkItbBgHQtW3fnWKIrVbRl5a3X
t/3og2OmysYY5g05IjP7Afg0+IPopyS9Kwa1SvgVe+Qu0SX8nZAjhOcSKtMgmPwP
CdzyK6Mv20+CkwcmAejG44dZ4NWY/Zog8iJ4fDDmgX8CxqGduoG0cLmvXPg9iqz9
qpxuD6EpqYOXKVFYRy3BOao72PJJgURpd2JGYHw2OiWkOTBP/KkJkOWb4pawDR2B
q06Zt/XyHqQhFwu4oUq63wOFcsUHn3poEjEtG2kPyYH4R4gUsZJvdXGOXpw3kq52
z3437Nf0fMnGeu+SKpINQ14GXKWzpxTtwRxDrDBlxyweLsA8ZTgzDxgCljkmO4wc
XF67uAGlHdu3eXCFHslW8tTrizjWl4fe95qej5oDuNi4okmkU6E6po6ohfphvxPP
Uu2gSRvFtzCmZGUypu9P
=BV20
-----END PGP SIGNATURE-----





More information about the NANOG mailing list