The overall CIDR architecture is described in [1].

Hence this document considers routing exchanges where one of the peers is CIDR-capable and the other is CIDR-incapable.

This initial assignment plan for these unicast addresses is similar to assignment of IPv4 addresses under the CIDR scheme [CIDR].

Specifically, the CIDR capable provider is expected to aggregate only the information the other side (the CIDR-incapable provider) requests.

The document assumes that the CIDR deployment in the Internet will proceed as a three phase process.

Applicability of CIDR The CIDR architecture is applicable to any group of connected domains that supports IP version 4 [6] [7].

IPv4 and CIDR Calculator gives you a breakdown of Hosts and IP Range for any Given Mask/CIDR and reverse.

Routing protocols supporting CIDR are OSPF and BGP4.

The CIDR architecture is applicable to any group of connected domains that supports IP version 4 [6] [7].

RFC 1467 Status of CIDR Deployment in the Internet August 1993 supported by BGP-4 and IDRP.

In other words, the aggregation shall be done by the CIDR- capable provider (the receiver) and only when agreed to by the CIDR- incapable provider (the sender).

CIDR aggregation is expected to help this problem.

It is expected that CIDR reachability information will first appear in the Internet upon transition of all Type 1 service providers to CIDR.

Demonstrate an understanding of network masks and CIDR notation

CIDR helps extend the amount of available addresses.