nanog mailing list archives
Re: Upstreams blocking /24s? (was Re: How Not to Multihome)
From: "Justin M. Streiner" <streiner () cluebyfour org>
Date: Mon, 8 Oct 2007 21:28:53 -0400 (EDT)
On Mon, 8 Oct 2007, Jon Lewis wrote:
adopted /24 as the cutoff point. If you make the cutoff point smaller, what is the new point... /26? /32?Anything longer than /24 is unlikely to propogate far on the internet. You can all check your filters to see. I just checked mine, and neither Level3 nor Time Warner has tried to send me anything longer than /24 in recent history. If they did, it'd show up as hits on a distribute-list deny rule.
I realize that - I was posing a rhetorical question to the previous poster :)
This is actually in the ARIN "rules". Multihoming is justification (regardless of utilization) for one of the multihomed network's providers to assign them a /24.
Been down that road a few times too, both as a provider and a customer. jms
Current thread:
- Re: How Not to Multihome, (continued)
- Re: How Not to Multihome Valdis . Kletnieks (Oct 09)
- Re: How Not to Multihome Joe Provo (Oct 08)
- Re: How Not to Multihome Andy Davidson (Oct 09)
- Re: How Not to Multihome Leo Vegoda (Oct 09)
- Re: How Not to Multihome Andy Davidson (Oct 09)
- Re: How Not to Multihome Leo Vegoda (Oct 09)
- Re: How Not to Multihome Scott Weeks (Oct 08)
- Upstreams blocking /24s? (was Re: How Not to Multihome) David Conrad (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Steven M. Bellovin (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Justin M. Streiner (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Jon Lewis (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Justin M. Streiner (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) David Conrad (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Patrick W. Gilmore (Oct 08)
- Re: Upstreams blocking /24s? (was Re: How Not to Multihome) Keegan . Holley (Oct 09)
- Easy and hard multihoming (was: Re: Upstreams blocking /24s) David Barak (Oct 10)
- Upstreams blocking /24s? (was Re: How Not to Multihome) David Conrad (Oct 08)