The basic idea of the plan is to allocate one or more blocks of
Class C network numbers to each network service provider.
Organizations using the network service provider for Internet
connectivity are allocated bitmask-oriented subsets of the
provider's address space as required. It is also worthwhile to
mention that once inter-domain protocols which support classless
network destinations are widely deployed, the rules described by
this plan generalize to permit arbitrary super/subnetting of the
remaining class A and class B address space (the assumption
being that classless inter-domain protocols will either allow
for non-contiguous subnets to exist in the system or that all
components of a sub-allocated class A/B will be contained within
a single routing domain). This will allow this plan to continue
to be used in the event that the class C space is exhausted
before implementation of a long-term solution is deployed. This
alternative is discussed further below in section 6.
Hierarchical sub-allocation of ad