WELL WRC5020N User’s Manual
225
B
IP Addresses, Network Masks, and
Subnets
IP Addresses
Note
This section refers only to IP addresses for IPv4 (version 4 of the
Internet Protocol). IPv6 addresses are not covered.
This section assumes basic knowledge of binary numbers, bits,
and bytes.
IP addresses, the Internet's version of telephone numbers, are
used to identify individual nodes (computers or devices) on the
Internet. Every IP address contains four numbers, each from 0
to 255 and separated by dots (periods), e.g. 20.56.0.211. These
numbers are called, from left to right, field1, field2, field3, and
field4.
This style of writing IP addresses as decimal numbers
separated by dots is called dotted decimal notation. The IP
address 20.56.0.211 is read "twenty dot fifty-six dot zero dot
two-eleven."
Structure of an IP address
IP addresses have a hierarchical design similar to that of
telephone numbers. For example, a 7-digit telephone number
starts with a 3-digit prefix that identifies a group of thousands of
telephone lines, and ends with four digits that identify one
specific line in that group.
Similarly, IP addresses contain two kinds of information:
•
Network ID
Identifies a particular network within the Internet or intranet
•
Host ID
Identifies a particular computer or device on the network
The first part of every IP address contains the network ID, and
the rest of the address contains the host ID. The length of the
network ID depends on the network's class (see following
section). The table below shows the structure of an IP address.
Field1
Field2
Field3
Field4
Class A
Network ID
Host ID
Class B
Network ID
Host ID
Class C
Network ID
Host ID
Here are some examples of valid IP addresses:
Class A: 10.30.6.125 (network = 10, host = 30.6.125)
Class B: 129.88.16.49 (network = 129.88, host = 16.49)
Class C: 192.60.201.11 (network = 192.60.201, host = 11)
Network classes
The three commonly used network classes are A, B, and C.
(There is also a class D but it has a special use beyond the
Summary of Contents for WRC5020N
Page 1: ...WELL WRC5020N User s Manual 1 WELL WRC5020N User s Manual ...
Page 15: ...WELL WRC5020N User s Manual 15 3 Double click on Internet Protocol TCP IP ...
Page 25: ...WELL WRC5020N User s Manual 25 4 Double click on Internet Protocol Version 4 TCP IPv4 ...
Page 28: ...WELL WRC5020N User s Manual 28 2 Click on Control Panel ...
Page 30: ...WELL WRC5020N User s Manual 30 5 Single RIGHT click on Ethernet then click Properties ...
Page 31: ...WELL WRC5020N User s Manual 31 6 Double click on Internet Protocol Version 4 TCP IPv4 ...
Page 36: ...WELL WRC5020N User s Manual 36 4 Click Wireless Configuration ...
Page 47: ...WELL WRC5020N User s Manual 47 2 Double click Network Connections ...
Page 126: ...WELL WRC5020N User s Manual 126 7 Click on Turn on network discovery and file sharing ...
Page 128: ...WELL WRC5020N User s Manual 128 9 AP s icon will show up Double click on it ...
Page 130: ...WELL WRC5020N User s Manual 130 11 Enter AP s Self PIN Number and click next ...
Page 132: ...WELL WRC5020N User s Manual 132 13 Enter the Passphrase and then click Next ...
Page 215: ...WELL WRC5020N User s Manual 215 ...
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