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North American Network Operators Group
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Re: IPv6 Deployment for the LAN
- From: Perry Lorier
- Date: Thu Oct 22 20:00:53 2009
trejrco@gmail.com wrote:
WRT "Anycast DNS"; Perhaps a special-case of ULA, FD00::53?
You want to allow for more than one for obvious fault isolation and load
balancing reasons. The draft suggested using <prefix>:FFFF::1 I
personally would suggest getting a well known ULA-C allocation assigned
to IANA, then use <prefix>::<protocol assignment>:1 <prefix>::<protocol
assignment>:2 and <prefix>::<protocol assignment>:3, where <protocol
assignment> could be "0035" for DNS, and "007b" for NTP, and if you're
feeling adventurous you could use "0019" for outgoing SMTP relay.
... Heck, start a registry (@IANA) and add in FD00::101, etc. ... Maybe reserve FD00::/96 for this type of "ULA port-based anycast allocation". (16bits would only reach 9999 w/o hex-conversion (if hex-converted could reserve FD00::/112 ... But would be less obvious))
Easily identified, not globally routable, can be pre-programmed in implementations/applications ... ?
Exactly, seems easy, straight forward, robust, reliable and allows for
things like fate sharing and fail over.
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