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Re: RFC1918 conformance
- From: Brett D. Watson
- Date: Mon Feb 10 18:13:38 1997
> As specified in RFC1918 (ftp://ds.internic.net/rfc/rfc1918.txt) the
> netblocks 10.0.0.0/16, 172.16.0.0/12 and 192.168.0.0/16 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 220.127.116.11
> 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
> *> 10.0.0.0 18.104.22.168 0 90 0 1794 1239 1790 6846 ?
> *> 172.16.0.0/12 22.214.171.124 0 90 0 1794 1239 1790 6846 ?
> *> 192.168.0.0/16 126.96.36.199 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>
> TELEGLOBE CANADA |
> 1000, rue de La Gauchetiere ouest | Tel: +1-514-868-7257
> Montreal, QC H3B 4X5 |
> Canada | fax: +1-514-868-8446
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