nanog mailing list archives

Re: using "reserved" IPv6 space


From: Jeroen Massar <jeroen () unfix org>
Date: Fri, 13 Jul 2012 16:41:41 +0200

On 2012-07-13 16:38, -Hammer- wrote:
OK. I'm pretty sure I'm gonna get some flak for this but I'll share this
question and it's background anyway. Please be gentle.

In the past, with IPv4, we have used reserved or "non-routable" space
Internally in production for segments that won't be seen anywhere else.

There is this very nice concept called ULA (RFC4193), use it.
If you want to be more sure about uniqueness, use
 http://www.sixxs.net/tools/grh/ula/
or you can also just use a chunk of your 'global' prefix and don't
announce a route for it and firewall it off properly.

Greets,
 Jeroen


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