Re: [Sip] draft-petithuguenin-sip-outbound-fragmentation-01

[Marc Petit-Huguenin <petithug at acm.org>]

Frank W. Miller wrote:
> Do you honestly think that there wouldn't be NAT if the world were
> completely IPv6?  NAT may have originally been put in place to alleviate the
> IPv4 address exhaustion problem but separation of address spaces is more
> useful than that, no matter how big the address spaces are.  

What about distributed firewall?

http://www.cs.columbia.edu/~smb/papers/distfw.html

> While I would
> luv for the public Internet to be purely end-to-end wrt IP addresses, this
> just is never going to happen again.  

I agree, but it is not a reason to not try to improve things.  NAT,
firewalls, load balancers, B2BUA and SBC are the cancer of Internet.

> The early days of a few hundred VAXs
> all happily talking to each other directly are long gone.  The days of trust
> are gone forever and NAT is just one reflection of that.
> 

So, how do you solve the problem of using a SIP endpoint behind a NAT? a
SIP endpoint been defined as running on UDP AND TCP.  Because this is
the problem here.

-- 
Marc Petit-Huguenin
Home: marc at petit-huguenin.org
Work: marc at 8x8.com

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