North American Network Operators Group

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Re: IPv6 news

  • From: Michael.Dillon
  • Date: Mon Oct 17 09:37:22 2005

> Many people pick this up and twist it into ~the network has to be 
> application agnostic~ and then use this against NATs or firewalls, 
> which is simply a misuse of the principle.

Personally, I think that NAT's interference with the
communication between hosts is similar to the way in
which error-detection and retransmission interfere
with realtime voice communication, as described in
Saltzer's end-to-end paper:

It seems that the end-to-end principle is more
of a metaphor for how to look at the design problem
rather than a hard and fast rule.

--Michael Dillon