RE: Port numbers and IPv6(was: I-D ACTION:draft-klensin-iana-reg-policy-00.txt)

[Stephen Kent <kent at bbn.com>]

Phil,

>  > layered defenses are a good notion, but mostly when the layers are
> >  under the same administrative control. all too often people forget
> >  that relying on the security provided by someone else is a risky
> >  proposition, as in your example of ISPs providing ingress filtering.
>
> I would restate your assertion:
>
> It is a bad idea to rely on another party that cannot be held
> accountable to you.
>
> We all rely on other parties, the Internet is an example of extended
> interdependency. The critical issue is accountability.
>
> So in the question of ingress filtering what I am looking at is
> mechanisms to create accountability.

the Internet is composed of Autonomous Systems, and they take the 
first word of the name very seriously. I suspect ISP accountability 
in China, for example, may be as successful as copyright enforcement 
in that region.

>  > If it weren't a good analogy I don't think I would have received so
> >  many private responses congratulating me for it :-)
>
> This forum is very much wedded to a security architecture based on a
> particular set of academic theories. It is no surprise that you find
> support here, any more than the original pontifex maximus would no doubt
> receive congratulations on his correct determinationof the auspices from
> the entrails of a goat.

I'm more a fan of goat cheese than entrails, but to each his own.

Maybe we would all be happier if you decided to not waste your time 
arguing with the folks in "this forum," since we are so out of touch 
and irrelevant to the future of network security, at least as defined 
by the practitioners who appear to emphasize the appearance of 
security over security per se.

Steve


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