ietf
[Top] [All Lists]

Re: Reality (was RE: Stupid NAT tricks and how to stop them.)

2006-04-11 02:27:01
On 11-apr-2006, at 4:39, Anthony G. Atkielski wrote:

It is worth about the same as a postal address that comes
naturally when they build a new house. In a similar way when a new
device comes to existence it gets an address out of infinite
universe of 0 and 1.

Maybe in some part of the universe addresses are infinite, but in the part where I live it's mostly 32 bits.

That would only be true if IP addresses were geographically assigned,
which they aren't.

You know, you could assign IPv6 addresses in a strictly geographic way
and you'd have more than enough for everyone, everywhere, with very
simple routing.  But of course that won't be done.

No, routing would be more complex. Routing is the art and science of getting to a place, which is a lot harder than simply knowing where a place is.

However, geographic addressing could give us aggregation with provider independece. If you examine European routes in the routing table of a router on the American west coast, you'll see that the vast majority of those routes point towards the same next hop. So if you could express an aggregate that encompasses all those routes and point that aggregate towards that next hop, you could filter out all those specific routes and the routing table in that one router would be a lot smaller. At each hop the number of routes that have a different next hop than the aggregate increases, until at some point the aggregate doesn't serve a useful purpose anymore. But by then you're in Europe or at least on the American east coast, where you can heavily aggregate Asia.

_______________________________________________
Ietf mailing list
Ietf(_at_)ietf(_dot_)org
https://www1.ietf.org/mailman/listinfo/ietf

<Prev in Thread] Current Thread [Next in Thread>