COMPUTER NETWORKING

Detailed explanation-1: -::/128-The address with all zero bits is called the unspecified address (corresponding to 0.0. 0.0/32 in IPv4). This address must never be assigned to an interface and is to be used only in software before the application has learned its host’s source address appropriate for a pending connection.

Detailed explanation-2: -Unspecified address You can abbreviate the address with two colons ( :: ). The unspecified address indicates the absence of an address, and it can never be assigned to a host. It can be used by an IPv6 host that does not yet have an address assigned to it.

Detailed explanation-3: -It is an internal address that routes back to the local system. The loopback address in IPv4 is 127.0. 01. In IPv6, the loopback address is 0:0:0:0:0:0:0:1 or ::1.

Detailed explanation-4: -0.0 represents the default route. The same concept is also applied to IPv6, address 0:0:0:0:0:0:0:0 with netmask all 0s represents the default route. After applying IPv6 rule, this address is compressed to ::/0. Loopback addresses in IPv4 are represented by 127.0.