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how does the isp provide public ip from where did they get the public ip registerd

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closed as not a real question by Zoredache, Sven, EEAA, DanBig, Scott Pack Mar 16 '11 at 20:33

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

The same way you do it internally, but with public IPs and BGP to other providers... Oh and some really big routers. Except that they have to register their IPs with IANA local registries or another provider known as a LIR(local internet registry.).

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