address range of cidr
This address range includes addresses from 224.0.0.0 to 239.255.255.255. Class E. 1111: This class defines addresses between 240.0.0.0 and 255.255.255.255. Any address that begins with four 1 bits is included in this class. Class D addresses are reserved for multi-casting protocols, which allow a packet to be sent to a group of hosts in one movement. One of the most useful reserved ranges is the loopback range specified by addresses from 127.0.0.0 to 127.255.255.255. This range is used by each host to test networking to itself. Typically, this is expressed by the first address in this range: 127.0.0.1. For instance, for class A addresses, the addresses from 10.0.0.0 to 10.255.255.255 are reserved for private network assignment. For class B, this range is 172.16.0.0 to 172.31.255.255. For class C, the range of 192.168.0.0 to 192.168.255.255 is reserved for private usage. IPv4 Addresses Classes and Reserved Ranges. IP addresses are typically made of two separate components. The first part of the address is used to identify the network that the address is a part of. The part that comes afterwards is used to specify a specific host within that network. Here is a translation table that defines the addresses based on their leading bits: 1  Class A. 2  Class B. 3  Class C. 4  Class D. 5  Class E. Classless inter-domain routing (CIDR) is a set of Internet protocol (IP) standards that is used to create unique identifiers for networks and individual devices. The IP addresses allow particular information packets to be sent to specific computers. The idea is that you can add a specification in the IP address itself as to the number of significant bits that make up the routing or networking portion. For example, we could express the idea that the IP address 192.168.0.15 is associated with the netmask 255.255.255.0 by using the CIDR notation of 192.168.0.15/24. This means that the first 24 bits of the IP address given are considered significant for the network routing. In CIDR notation, IP addresses are written as a prefix, and a suffix is attached to indicate how many bits are in the entire address. The suffix is set apart from the prefix with a slash mark. For instance, in the CIDR notation 192.0.1.0/24, the prefix is 192.0.1.0, and the total number of bits in the address is 24. CIDR Blocks The ability to group blocks of addresses into a single routing network is the hallmark of CIDR, and the prefix standard used for interpreting IP addresses makes this possible. CIDR blocks share the first part of the bit sequence that comprises the binary representation of the IP address, and blocks are identified using the same decimal-dot CIDR notation system that is used for IPv4 addresses. The CIDR address we specified indicates that the first 23 bits are used for the network block we are referencing. This is equivalent to a netmask of 255.255.254.0, or: 1111 1111 - 1111 1111 - 1111 1110 - 0000 0000
255.255.254.0