when typing ip addresses, type the digits and periods in sequence. do not use the tab key, arrow key, spacebar, or mouse to jump past the periods. for example, if you are typing the address 172.16.1.10, do not type a space after you type “16” or try to position your cursor past the next period to begin typing “1.” instead, type a period right after “16,” and then type “1.10.”
if your address has a network mask, use slash notation to enter it. in slash notation, a single number indicates how many bits of the ip address identify the network that the host is on. a netmask of 255.255.255.0 has a slash equivalent of 8+8+8=24. for example, writing 192.168.42.23/24 is the same as specifying an ip address of 192.168.42.23 with a corresponding netmask of 255.255.255.0. the following table shows network masks and slash equivalents.
