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#What is the default subnet mask for Class B IP addresses?
The default subnet mask for class b IP address is 255.255.0.0.
(1) The first and second bytes of the Class B address are the network address, and the other two bytes are the host address. The first 2 of the other 1 byte are fixed at 10.
⑵ Class B address range: 128.0.0.0 to 191.255.255.255.
⑶ Reserved addresses in Class B addresses
169.254.0.0 to 169.254.255.255 are reserved addresses. If your IP address is obtained automatically and you do not find an available DHCP server on the network, you will temporarily obtain an IP address from 169.254.0.1 to 169.254.255.254.
Class B Private Address
In Class B addresses, 172.16.0.0 to 172.31.255.255 are private addresses.
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