Computer NetworksNETWORKS

Class D & Class E IP Address

Class D and Class E IP addresses are two types of IP address classes in the IPv4 address scheme. They have specific purposes and characteristics:

### Class D IP Addresses:
– **Range:** 224.0.0.0 to 239.255.255.255
– **Purpose:** Used for multicast groups.
– **Explanation:** Class D addresses are designed for multicast, which allows a single packet to be sent to a group of destinations. This is useful for streaming media and other applications where the same data needs to be transmitted to multiple receivers simultaneously.
– **Characteristics:**
– Multicast addresses are not assigned to individual hosts. Instead, hosts can join multicast groups to receive the data sent to these addresses.
– No subnetting is used in Class D.

### Class E IP Addresses:
– **Range:** 240.0.0.0 to 255.255.255.255
– **Purpose:** Reserved for experimental use and future purposes.
– **Explanation:** Class E addresses are reserved for experimental use and are not intended for general use on public or private networks.
– **Characteristics:**
– Not used for regular network communication.
– Often ignored or blocked by most network equipment.

These address classes are part of the historical classful network design, which has largely been replaced by Classless Inter-Domain Routing (CIDR) due to its flexibility and efficiency in IP address allocation.

source

ipv4

Alice AUSTIN

Alice AUSTIN is studying Cisco Systems Engineering. He has passion with both hardware and software and writes articles and reviews for many IT websites.