What is IP and what wildcards can be used?

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Question

What is IP and what wildcards can be used?

Answer

IP is a connectionless protocol, which means that there is no continuing connection between the end points that are communicating. Each packet that travels through the Internet is treated as an independent unit of data without any relation to any other unit of data. (The reason the packets do get put in the right order is because of TCP, the connection-oriented protocol that keeps track of the packet sequence in a message.)

Below are ways in which IP addresses are recognised in GMS Mail.

a.b.c.d
(A specific whole IP address)
I.E = 255.255.255.255

a.b.c.* = .255
(This gives the last octet of the IP, a range of up to 255)
I.E – 194.194.194.0 – 194.194.194.255

!a.b.c.d = not
(The ! at the beginning simply means ‘NOT’)
I.E !194.194.194.194 = Not 194.194.194.194

See Also:

Keywords:IP address ipaddress

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