COMPUTER NETWORKING

Detailed explanation-1: -Rule 1, called Zero Compression, omits a group of consecutive zeros and replaces them with a double colon (::). This can only be applied once per IPv6 address, otherwise, the shortened representation becomes ambiguous. Rule 2 omits leading zeros in a every group of hexadecimal digits.

Detailed explanation-2: -For above example 2001:db8:0:b:0:0:0:1A, we have a series of three consecutive fields of hexadecimal zeros as marked 2001:db8:0:b:0:0:0:1A. We can further simplify and shorten the above IPv6 Address as 2001:db8:0:b::1A.