Classless Routing Protocols

In this article we will discuss Classless Routing Protocols, will make brief discussion on Classless Routing Protocols, In last article we discuss about Dynamic Routing Protocol Operation.

Modern networks no longer use classful IP addressing, and therefore, the subnet mask cannot be determined by the value of the first octet.

The classless IPv4 routing protocols (RIPv2, EIGRP, OSPF, and IS-IS) all include the subnet mask information with the network address in routing updates. Classless routing protocols support VLSM and CIDR.

IPv6 routing protocols are classless. The distinction of being classful or classless only applies to IPv4 routing protocols. All IPv6 routing protocols are considered classless because they include the prefix-length with the IPv6 address.

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