ENTERPRISE NETWORK DESIGN ONLY need to answer C i thanks so

ENTERPRISE NETWORK DESIGN

ONLY need to answer C (i) thanks so much :)

EuroMotor is a well-established reputable company in Europe. The company wants to set up a regional headquarter in Singapore, selling all types of vehicles and accessories from Europe. The regional HQ will consist of seven departments Administration (AD) Finance (FI Accounts (AC) MarketingNewVehicles (MN) MarketingUsedVehicles (MU) Services (SV) Logistics (LG The company wants to set up of a new enterprise network to facilitate the communications of the departments. It has acquired a new building for the purpose. A drafted network design is shown in Figure1 (Page 2). All departments are conveniently located in the same building. Each department is supported by a local area network (LAN). The LANs are connected by routers as shown in Figure1 (Page ) As a network engineer, you are requested to consider the proposal and complete the design, and make appropriate recommendation for the new enterprise network

Solution

Here i am giving you the necessary theory required for the construction of IPv6 adress so understand this and apply on your network.

IPv6 uses 16 bytes addresses compared to 4 byte addresses in IPv4. IPv6 address syntax and types are described in RFC 4291.

There are multiple IPv6 address types, that can be recognized by their prefix. RouterOS distinguishes the following:

One difference between IPv6 and IPv4 addressing is that IPv6 automatically generates a link-local IPv6 address for each active interface that has IPv6 support.

Address Expression

IPv6 addresses are represented a little bit different than IPv4 addresses. For IPv6, the 128-bit address is divided in eight 16-bit blocks, and each 16-bit block is converted to a 4-digit hexadecimal number and separated by colons. The resulting representation is called colon-hexadecimal.

In example above IPv6 address in binary format is converted to colon-hexadecimalrepresentation

IPv6 address can be further simplified by removing leading zeros in each block:

As you can see IPv6 addresses can have long sequences of zeros. These contiguous sequence can be compressed to ::

Prefix

IPv6 prefix is written inaddress/prefix-length format. Compared to IPv4 decimal representation of network mask cannot be used.

Prefix examples:

Most important multicast aspects are:

A single IPv6 multicast address identifies each multicast group. Each group\'s reserved IPv6 address is shared by all host members of the group who listen and receive any IPv6 messages sent to the group\'s address.

Multicast address consists of the following parts:

Here is the table of reserved IPV6 addresses for multicasting:

Address	Description
FF02::1	The all-nodes address used to reach all nodes on the same link.
FF02::2	The all-routers address used to reach all routers on the same link.
FF02::5	The all-Open Shortest Path First (OSPF) routers address used to reach all OSPF routers on the same link.
FF02::6	The all-OSPF designated routers address used to reach all OSPF designated routers on the same link.
FF02::1:FFXX:XXXX	The solicited-node address used in the address resolution process to resolve the IPv6 address of a link-local node to its link-layer address. The last 24 bits (XX:XXXX) of the solicited-node address are the last 24 bits of an IPv6 unicast address.