but how do you know that? peering is hop by hop. you can only announce to your peers. you have zero control over who they talk to or how they forward on reachability to your prefix roughly speaking, once packets cross my policy boundary (BGP?) then for all intents, I'm on the Internet... even if your prefixes aren't visible on/in my part of the universe. --bill On Mon, Jun 01, 2009 at 05:32:06PM +0400, poty@iiat.ru wrote:

As already mentioned - to the shared network - the Internet. Opposing the internal network - how big and ugly it might be!

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-----Original Message----- From: bmanning@vacation.karoshi.com [mailto:bmanning@vacation.karoshi.com] Sent: Monday, June 01, 2009 5:12 PM To: Potapov Vladislav Cc: michael.dillon@bt.com; address-policy-wg@ripe.net Subject: Re: [address-policy-wg] RE: Private address space in IPv4 and IPv6 [was something irrelevantly titled]

On Mon, Jun 01, 2009 at 04:24:52PM +0400, poty@iiat.ru wrote:

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Is Network X on the Internet? Is the Radianz network on the Internet? There is a simple answer. If your address block is interacting with

at

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least one announced prefix, then you should have globally unique addresses, otherwise - not.

announced to whom?

--bill