RFC1918 conformance

As specified in RFC1918 (ftp://ds.internic.net/rfc/rfc1918.txt) the
netblocks, and have been
allocated for "Private Internets". Consequently, these netblocks
should not be routed over the Internet.

As shown below, they are currently advertised from AS6848 and these
advertisements are carried to us (AS6453) through various AS's of the
SprintLink system.

  while what you say is absolutely true (people shouldn't adversite
them) i would say that it's as much your responsibility to block them
at your edge routers.


>sh ip bgp reg _6846$
BGP table version is 9335417, local router ID is
Status codes: s suppressed, d damped, h history, * valid, > best, i -
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 0 90 0 1794 1239 1790 6846 ?
*> 0 90 0 1794 1239 1790 6846 ?
*> 0 90 0 1794 1239 1790 6846 ?

AS6846 responsibles should take immediate action to remove these
announcements. SprintLink, as any conscientious operator, should take
action to filter out these announcements from any of its peers.


Pierre Thibaudeau | e-mail: <prt@Teleglobe.CA>
1000, rue de La Gauchetiere ouest | Tel: +1-514-868-7257
Montreal, QC H3B 4X5 |
Canada | fax: +1-514-868-8446


After several recent incidents involving obviously incorrect
advertisements from several of the 'big name' companies, I've concluded
that it's as important to filter their advertisements for sanity as it
is for one's own customers.

  David Schwartz