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Re: comment on unmanaged analysis presentation/doc



>I'm very concerned about trying to fully automate tunnel setup (whether
>over IPv4 NATs or just plain old IPv4) due to the trust and security issues.
>Thus I think it makes sense to have an authenticated and properly authorizable
>tunnel establishment method that can work whether or not there is an
>IPv4 NAT in the path. 

	in that case, what is your comment to 6to4 routers?  they accept
	tunnelled packet from anyone, with no authentication whatsoever.
	i raised the concern in draft-itojun-ipv6-transition-abuse-*.txt.

itojun