Question

Please, Describe

1. 1. What is the interface ID in an IPv6 address - Give an example
2. 2. What is the EUI-64 in an IPv6 address - Give an example
   3. Subnetting
   4. Give an example of the prefix of a network that does not need to subnet (do not copy the one in the book, prepare one yourself)
   5. Give an example of the prefix of a larger network with several locations (do not copy the one in the book, prepare one yourself)

Answer 1

IPv6 refers to Internet Protocol version 6. It is a 128 bit alphanumeric string that is used to identify a network node participating in an IPv6 computer network. ora network interface of a computer.

It is represented by eight groups( separated by colons (:)) of four hexadecimal digits, each group representing 16 bits.

Example:

X : X : X : X : X : X : X : X

2001:0db8:85a3:0000:0000:8a2e:0370:7334

a. The interface ID used to identify an interface of a particular node. An interface ID must be unique within the subnet.

Example:

x : x : x : x : x : x : x : x  

Here, last 4 x determine Interface ID.

b. EUI-64 refers to Extended Unique Identifier. It s use to automatically configure IPv6 host addresses.

c. Subnetting an IP network allows a single large network to be broken down into what appear (logically) to be several smaller ones. It was originally introduced before the introduction of classful network numbers in IPv4, to allow a single site to have a number of local area networks. Even after the introduction of classful network numbers, subnetting continued to be useful, as it reduced the number of entries in the Internet-wide routing table (by hiding information about all the individual subnets inside a site). As a side benefit, it also resulted in reduced network overhead, by dividing the parts which receive IP broadcasts.

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