[j-nsp] IPv6 subnetting

[Mark Kamichoff]

On Fri, Feb 01, 2008 at 01:32:49PM +0700, a. r.isnaini. rangkayo sutan wrote:
> Yes, you cannot assign 10::14/126 which 4 I believe is network ID for
> /126  (/30 in ipv4), before 10::14/126 there should 10::/126.

The first address in any IPv6 subnet is reserved for subnet-router
anycast.  Section 2.6.1 of RFC 2373 defines this.

This also includes the first address of /127's.  Reading RFC 3627 (Use
of /127 Prefix Length Between Routers Considered Harmful) is probably
worthwhile.

- Mark

-- 
Mark Kamichoff
prox at prolixium.com
http://prolixium.com/
Rensselaer Polytechnic Institute, Class of 2004
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