nanog mailing list archives
Re: filtering long prefixes
From: John Bradley <jbradley () westel com>
Date: Thu, 21 Sep 1995 15:02:09 -0700 (PDT)
On Thu, 21 Sep 1995, Sean Doran wrote:
reject BGP announcements which: -- are in the range of 206.0.0.0/8 to 239.0.0.0/8 with a mask longer than 18 bits -- has a mask longer than 24 bits - --
Unfourtunatly the Canadian IP registrar has been handing out addresses in the 206.12.0.0/16 range to anyone applying for a IP address in Canada. Sprint has several Canadian customers Sprint Canada, Cyberstore, and Hookup that are anouncing routes to you in this block. example route: 206.12.112.0/24 descr: TRIN-NET origin: AS3609 advisory: AS690 1:3830(11) 2:3830(147) mnt-by: MAINT-AS3609 changed: ejw () cyberstore ca 950811 source: RADB The following are the addresses of my customers that would be filterd by this policy. None of these people were told that these addresses could only be routed to CA*net.
[206/8 more-specifics] [ prefix as-path ] 206.12.202.0/23 3561 5071 206.12.206.0 3561 5071 206.12.208.0 3561 5071 206.12.237.0 3561 5071 206.12.238.0/23 3561 5071
Thanks for the warning. I understand your reasons for this, unfourtunatly the Canadian IP registrar may have been unclear on the concept. John ============================================================= John Bradley | Office Phone (604) 990-2158 WesTel Telecommunications Ltd | Fax (604) 990-2020 Vancouver, BC Canada | Cell (604) 240-8478 John_Bradley () westel com | Autonomous System 5071
Current thread:
- filtering long prefixes Sean Doran (Sep 21)
- Re: filtering long prefixes Geert Jan de Groot (Sep 21)
- filtering long prefixes Mark Kent (Sep 21)
- Re: filtering long prefixes Hans-Werner Braun (Sep 21)
- Re: filtering long prefixes Nick Williams (Sep 21)
- Re: filtering long prefixes John Bradley (Sep 21)
- <Possible follow-ups>
- Re: filtering long prefixes Sean Doran (Sep 21)
- Re: filtering long prefixes Sean Doran (Sep 21)
- Re: filtering long prefixes Willi Huber (Sep 26)
- Re: filtering long prefixes Sean Doran (Sep 21)
- filtering long prefixes Mark Kent (Sep 21)
- Re: filtering long prefixes Dave Siegel (Sep 22)
- filtering long prefixes Mark Kent (Sep 21)
- Re: filtering long prefixes Sean Doran (Sep 21)
- Re: filtering long prefixes Michael Dillon (Sep 21)
- Re: filtering long prefixes bmanning (Sep 24)
- Re: filtering long prefixes Michael Dillon (Sep 21)
- Re: filtering long prefixes Kai (Sep 21)
(Thread continues...)