nanog mailing list archives
Re: IPv6 prefix lengths
From: Michiel Klaver <michiel () klaver it>
Date: Thu, 13 Jan 2011 11:09:13 +0100
At 22-07-28164 20:59, Richard Barnes wrote:
Hi all, What IPv6 prefix lengths are people accepting in BGP from peers/customers? My employer just got a /48 allocation from ARIN, and we're trying to figure out how to support multiple end sites out of this (probably around 10). I was thinking about assigning a /56 per site, but looking at the BGP table stats on potaroo.net [1], it looks like this is not too common (only .29% of prefixes). Thoughts? Thanks,
Hi Richard,Most major transit providers with IPv6 support filter at a maximum prefix length of /48 [1]
Also, some guidance in subnetting can be found at several places on the web [2][1] http://en.wikipedia.org/wiki/Comparison_of_IPv6_support_by_major_transit_providers
[2] http://en.wikipedia.org/wiki/IPv6_subnetting_reference
Current thread:
- Re: IPv6 prefix lengths, (continued)
- Re: IPv6 prefix lengths ML (Jan 12)
- Re: IPv6 prefix lengths Mark Andrews (Jan 12)
- Re: IPv6 prefix lengths Randy Carpenter (Jan 12)
- Re: IPv6 prefix lengths Owen DeLong (Jan 12)
- Re: IPv6 prefix lengths William Pitcock (Jan 12)
- Re: IPv6 prefix lengths Cameron Byrne (Jan 12)
- Re: IPv6 prefix lengths Jeff Wheeler (Jan 13)
- Re: IPv6 prefix lengths Owen DeLong (Jan 13)
- Re: IPv6 prefix lengths Mohacsi Janos (Jan 13)
- Re: IPv6 prefix lengths Luigi Iannone (Jan 13)
- Re: IPv6 prefix lengths Owen DeLong (Jan 13)
- Re: IPv6 prefix lengths Michiel Klaver (Jan 13)
- Re: IPv6 prefix lengths Joel Jaeggli (Jan 13)
- Re: IPv6 prefix lengths ML (Jan 12)