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Re: radical solutions
> However, GSE can be seen as a compromise that could constrain
> present-day NATs to a very limited interference with an in-flight
> v6 packet. OTOH, market forces alone may arrive at that; after
> all there is nearly no need for address-compression in IPv6,
> and it's that aspect of NAT in v4 that is the hardest to deal with.
I understand how GSE-like (and NAT-like) technology helps a lot with
renumbering for a site that only initiates communication.
But I fail to see how this helps the other end; if a site
has N RGs then the DNS would return N different addresses for a given
node each having a different RG (but the same identifier).
In order to provide good redundancy we would need some mechanism
for the initiating party to quickly find a working RG from that set.
(unless we want to update the DNS each time a customer<-> isp link fails, or
unless we want rfc 2260 style local repair between the isps serving