[558] in North American Network Operators' Group
Re: filtering long prefixes
daemon@ATHENA.MIT.EDU (Willi Huber)
Tue Sep 26 05:19:20 1995
To: smd@icp.net (Sean Doran)
Date: Tue, 26 Sep 1995 10:11:30 +0100 (MET)
Cc: GeertJan.deGroot@ripe.net, smd@sprint.net, nanog@MERIT.EDU
In-Reply-To: <95Sep21.062548-0400_edt.20696+1126@chops.icp.net> from "Sean Doran" at Sep 21, 95 06:25:46 am
From: Willi Huber <huber@chx400.switch.ch>
Resent-From: nanog@MERIT.EDU
>
>
> Yes, Geert Jan, but if you look at the list I prepared,
> you'll note that the only chunks of old style Bs that are
> 18-bits long all come from one home-AS and most are in a
> pair of old-style class Bs which easily could be aggregated
> into a single /15 with the loss of some routing specificity
> (which is lost anyway when that provider's internal metrics
> don't propagate to its external peers).
>
> The remainder of the 'chunks' of old style Bs are
> all longer than 18 bits, and most are /24s or /26s,
> and I see none at all that appear difficult to aggregate,
> or which look like anything other than leaks due to
> misconfiguration.
>
> If you get to the point where someone needs to have a /18
> in the old-style class B space and it can't be aggregated,
> we can return to this.
>
> Sean.
>
>
Hallo,
the Municipality of Zuerich has got assigned 1/2 class B in April this year
after a long discussion with RIPE NCC. They will soon get onto Internet.
I need to be sure that this address space is routed on the Internet.
Sean, Geert-Jan, could you comment, please.
Regards,
Willi Huber
inetnum: 131.117.0.0 - 131.117.127.255
netname: ZUERI-NET
descr: Municipality of Zuerich
descr: Zuerich. Switzerland
country: CH
admin-c: BM16-RIPE
tech-c: BM16-RIPE
changed: huber@switch.ch 950412
source: RIPE
person: Beat Morf
address: Organisation & Informatik der Stadt Zuerich
address: Wilhelmstrasse 10
address: CH-8022 Zuerich
phone: +41 1 279 92 62
phone: +41 1 279 91 11
fax-no: +41 1 279 93 85
e-mail: beat.morf@oiz.stzh.inet.ch
nic-hdl: BM16-RIPE
changed: huber@switch.ch 950601
source: RIPE
