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Answer Posted / sonu singh
CIDR stand for Classless Inter Domain Routing, is also known
as supernetting .CIDR is a new addressing scheme for the
Internet which allows for more efficient allocation of IP
addresses than the old Class A, B, and C address scheme.
FOR EXAMPLE :--
In router we get :- 192.168.1.0/24
192.168.2.0/24
192.168.3.0/24
192.168.4.0/24 routes.
CIDR aggregate these routes to 192.168.1.0/23 route ,one
route that represent the all four /24 route..
cidr as very importent for internet routers because it
reduce the routing table space.
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