Internet Service Provider Address Coalitions (ISPACs)

Document Type Expired Internet-Draft (individual)
Author Tony Li 
Last updated 1996-11-25
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Expired & archived
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The introduction of CIDR [1, 2] substantially changed the way that address allocation was performed in the Internet. The result is that address allocation is provider-based: the address used by a host depends on which service provider is used by the host. One of the unfortunate implications is that if a host changes provider, it must renumber. In many cases this is awkward, expensive, and difficult.


Tony Li (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)