Hiroki,
> The motivation for this use case is to restrict the use of site-local
> addresses to communication inside of the site and insure that they
> are less likely to be used for any site to site communication.
I cannot understand what this sentence means. I believe that any
site-to-site communication is supposed to be done via global addresses.
Site local addresses MUST not be used for inter-site communication.
Or am I misunderstanding?
That is what the draft is trying to say. The draft is attempting to define
rules/guidelines that insure that site-local addresses will not be used for
site to site (inter-site) communications.
> Using limited scope addresses for site to site communication, while
> possible (i.e., via tunneling or VPN technologies), is problematic
> and makes it hard to debug problems. Overall it is simpler to use
> global addresses.
Does it include configured IPv6-over-IPv4 tunnels?
Many IPv6 networks are built using IPv6-over-IPv4 tunnels.
This is a good point to cover. I think the answer depends on what is being
connected with IPv6-over-IPv4 tunnels. Is a single site? If not, then
site-local addresses should not be used.
I am in favor of this document for site-local usages.
This document appropriately limits the use of site-local addresses,
and still leaves the room for future usage of them (which we don't know).
Thanks. The draft attempts to define a use case where site-locals are only
used where specifically configured. This will permit their use for
situations where the site desires to use them, but limit their use otherwise.
Personally, I would like to have Margaret's
draft-wasserman-ipv6-sl-impact-00.txt as a document on the issues
associated with site-local addressing (w/o recommendations section)
and Bob's draft-hinden-ipv6-sl-moderate-00.txt as a site-local usage
document. I know that many people have different opinions. :-)
That would be a reasonable approach. Yes, opinion do vary on this topic!
Thank you and A Happy New Year,
Happy New Year,
Bob
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