Provider
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... subnet basis. Likewise, a router within a
provider need not keep detailed routing information about individual
subnets ...
... subscriber basis. Moreover, a router
within a provider need not keep detailed routing information about
stub (single home) subscribers ...
... aggregation. Also,
when a site uses addresses obtain from its provider, but then later
switches to a different provider ...
... provider, but then later
switches to a different provider (while continuing to use the same
addresses), the route ...
... policy by an Internet Registry that is not associated with a
provider.
...
... address lending" policy is used
by an Internet Registry associated with a provider, the provider is
responsible for arranging aggregation ...
... by an Internet Registry associated with a provider, the provider is
responsible for arranging aggregation of these addresses ...
... address lending" policy is used
by an Internet Registry associated with a provider, the terms and
conditions of the loan would be coupled to the service agreement ...
... subscribers. That is, if the subscriber
moves to another provider, the loan would be canceled.
...
... grace period. This provision
would allow a subscriber that disconnects from its provider a certain
grace period after the disconnection. During this grace period ...
... subscriber borrows its addresses from its
provider's block, then the provider can advertise a single address
prefix. This reduces the routing information ...
... addresses from its
provider's block, then the provider can advertise a single address
prefix. This reduces the routing information that needs to be carried
...
... 5.3.1 of RFC1518hist). As the subscriber changes its provider, the loan
from the old provider would be returned, and the loan from the new
...
... subscriber changes its provider, the loan
from the old provider would be returned, and the loan from the new
provider would be established. As a result, the subscriber ...
... from the old provider would be returned, and the loan from the new
provider would be established. As a result, the subscriber would
renumber to the new addresses ...
... addresses. Once the subscriber renumbers into the
new provider's existing blocks, no new routes need to be introduced
into the routing system.
...
... Organizations connecting to the Internet should be aware that even if
their current provider, and the provider they switch to in the future
...
... Internet should be aware that even if
their current provider, and the provider they switch to in the future
do not require renumbering, renumbering may still be needed to
...
... IP connectivity. For example, an organization
may now receive Internet service from some provider and allocate its
addresses out of the CIDR ...
... addresses out of the CIDR block associated with the provider. Later
the organization may switch to another provider ...
... provider. Later
the organization may switch to another provider. The previous
provider may still be willing to allow the organization to retain
...
... switch to another provider. The previous
provider may still be willing to allow the organization to retain
part of the provider's CIDR ...
... provider may still be willing to allow the organization to retain
part of the provider's CIDR block, and accept a more specific prefix
...
... CIDR block, and accept a more specific prefix
for that organization from the new provider. Likewise, the new
provider may be willing to accept that organization without
...
... for that organization from the new provider. Likewise, the new
provider may be willing to accept that organization without
renumbering and advertise the more specific prefix (that covers
...
... However, if one or more other providers exist, that are unwilling or
unable to accept the longer prefix advertised by the new provider,
then the organization would not have IP connectivity to part of the
...
... The above shows that the absence of an explicit "address lending"
policy from a current provider in no way ensures that renumbering
will not be required in the future when changing providers.
Organizations should be aware of this fact should they encounter a
...
... will not be required in the future when changing providers.
Organizations should be aware of this fact should they encounter a
provider making claims to the contrary.
...
... the case where the organization takes its addresses out of its direct
provider's block and the organization changes its direct provider.
This may also apply to the case where the organization takes its
...
... addresses out of its direct
provider's block and the organization changes its direct provider.
This may also apply to the case where the organization takes its
addresses ...
... This may also apply to the case where the organization takes its
addresses out of its indirect provider's block, and the organization
changes its indirect provider, or the organization's direct provider ...
... addresses out of its indirect provider's block, and the organization
changes its indirect provider, or the organization's direct provider
changes its provider ...
... provider's block, and the organization
changes its indirect provider, or the organization's direct provider
changes its provider.
...
... IP connectivity (e.g., with all the subscribers of
its direct provider) by limiting the distribution scope of its
routing information to its direct provider ...
... provider) by limiting the distribution scope of its
routing information to its direct provider. Connectivity to the rest
of the Internet can be handled by mediating gateways ...