Wholesale Internet Access Addressing
• Customers get address space from the ISP that they connect to.
• When using dynamic addresses, the wholesale Internet access provider has to use a different address pool for every upstream service provider.
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Regardless of the business model used in the wholesale Internet access service, the addressing requirements are always the same: the upstream ISP allocates a portion of its address space to the end users connected to the Internet access backbone. The wholesale Internet access provider consequently has to use a different address pool for every upstream ISP.
Continue reading here: Limitations of Separate internet Access
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