Netgear PS110 PS110 Reference Manual - Page 156
B-1, network number and a 16-bit node number. Class B addresses are in this range
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Installation and Reference for the Model PS104/PS105/PS110 Print Server There are five standard classes of IP addresses. These address classes have different ways of determining the network and host sections of the address, allowing for different numbers of hosts on a network. Each address type begins with a unique bit pattern, which is used by the TCP/IP software to identify the address class. After the address class has been determined, the software can correctly identify the host section of the address. The three main address classes are illustrated in Figure B-1, which shows the network and host sections of the address for each address type. Class A Network Class B Node Network Class C Node Figure B-1. Network Node 7261 Three Main Address Classes Class A addresses can have up to 16,777,214 hosts on a single network. They use an 8-bit network number and a 24-bit node number. Class A addresses are in this range: 1.x.x.x to 126.x.x.x. Class B addresses can have up to 65,354 hosts on a network. Class B addresses use a 16-bit network number and a 16-bit node number. Class B addresses are in this range: 128.1.x.x to 191.254.x.x. Class C addresses can have 254 hosts on a network. Class C addresses use 24 bits for the network address and 8 bits for the node. They are in this range: 192.0.1.x to 223.255.254.x. Class D addresses are used for multicasts (messages sent to many hosts). Class D addresses are in this range: 224.0.0.0 to 239.255.255.255. B-2 Understanding IP Addresses