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It ain't the Internet Panama begins blocking IP ports to prevent VoIP
From: Dave Farber <dave () farber net>
Date: Mon, 04 Nov 2002 18:06:15 -0500
------ Forwarded Message From: "David P. Reed" <dpreed () reed com> Date: Mon, 04 Nov 2002 17:45:51 -0500 Subject: Re: <[IP]> Panama begins blocking IP ports to prevent VoIP The Panama "UDP Port block" is interesting from a technical point of view. Routers are not supposed to inspect anything outside the IP header in making their routing decisions. That's what the Internet standard says. If some device looks at the UDP data (which technically means the first few bytes of the data in an IP datagram that has a particular protocol number), it is not a router. It is something that is sometimes called a "middlebox". What Panama is doing is asking for the Internet to be redesigned and rearchitected in order to inflict a policy that relates to competition. The result is not the Internet. It is important for the IAB and IETF to point out to the government of Panama that the service they are asking to be deployed is NOT the Internet. It violates the Internet standards, by incorporating an end-to-end protocol into the routers between adminstrative domains. This is not trivial. The Internet architecture is designed so that the IP transport layer does not need to know, and cannot know, the meaning of the bits contained in the data portion of the datagrams. ------ End of Forwarded Message ------------------------------------- You are subscribed as interesting-people () lists elistx com To unsubscribe or update your address, click http://v2.listbox.com/member/?member_id=125275&user_secret=1aa8f2d6 Archives at: http://www.interesting-people.org/archives/interesting-people/
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- It ain't the Internet Panama begins blocking IP ports to prevent VoIP Dave Farber (Nov 04)