Project 2 (Part C – Network Design and Implementation) Case Study WEEKS XXXXXXXXXXCONTENTS Project – Designing and Developing a network solution for a medium sized organization Victorian Institute of...

Packet Tracer 3 Lab – VLSM 2 – Solution
Background / Preparation
SSM Australia maintains, hires out, buys and sells new and used premium
anded motor vehicles in Australia. The head office of the company is situated in Sydney. It has
anches in Melbourne, Perth and Brisbane. Company wants to implement a network which supports potential growth over the next five years and they have hired AusNet to layout the network with an expectation of 50% growth of cu
ent IP requirements. At present, there are 125 employees at department of Sales and Hire, 45 employees in department of Marketing,20 employees in department of Vehicle Maintenance, 25 employees in the department of Business Administration and 5 employees at department of Site Security providing their service to the head office which is stationed in Sydney. All members of department of Site Security require access to all the network via a wireless LAN at each site. Company has 20 employees working for the Technical Support Group, 5 employees at each site. Sydney head office also hosts the server farm for the network. These servers contain web servers and file servers which ca
y company sensitive information.
Sydney head office is spread across 2 major buildings which are 5km apart from each other. Building A is a three storied building with 50 Sales and Hire employees on 2nd and 1st flow. Rest of the Sales and Hire Department employees and Site Security Group is stationed in the ground floor. Building B is a two-storied building with 1st flow for department of Marketing and Technical support group and the ground flow for the other departments and as a network designer designing a network that connects with geographically different office s, for access to the Web Server departments have their own LAN, to the corporate headquarters. For this network design according to network requirement connection will be made through a Cloud representing an ISP / Internet network connection at each site. According proposed network design to the configure IP addresses cloud represent to the border routers.
The service provider has assigned a portion of Specification Number 3.4
Class A -Internal Network Address 33.64.0.0 / 18
Class B -NAT Pool Public Address 133.4.0.0 / 23
Class C- ISP Network Connection Address 230.3.4.0 / 30
Class B -ISP Internet Web Server Address 133.19.3.0 / 30
Specification Number 4.4
Class A -Internal Network Address 42.62.0.0 / 18
Class B -NAT Pool Public Address 136.4.0.0 / 23
Class C- ISP Network Connection Address 240.4.6.0 / 30
Class B -ISP Internet Web Server Address 145.22.5.0 / 30 to work with and must make the best use of the address space while minimizing wasted addresses. This network proposal will develop an IP addressing scheme using Variable Length Subnet Masks (VLSM) to allocate IP addresses to the LANs and WAN links in the network. We apply the addresses to the routers and workstations in the simulated network and then test to ensure that it works.
For this network proposal find routes to remote networks automatically we use Routers simulated with Packet Tracer use RIP version 2. A router advertises all networks that its ports belong to, which is specified by the IP address and subnet mask. RIP version 2 supports VLSM. RIP keeps a routing table of remote networks. The routing table associates a network (network ID and subnet mask or network bits) to the port that is closest to the network. A router can have one default port.
A Cloud simulated with Packet Tracer has multiple borders. All other cloud functions are entical to router functions. A cloud does not have a default port.
Each border is a WAN port that has an IP address. The cloud provides the DCE clocking for each of its border interfaces by default.
Step 1. Design an IP Addressing Scheme Using VLSM
Address: 33.64.0.0 00100001.01000000.00 000000.00000000
Netmask: 255.255.192.0 = 18 11111111.11111111.11 000000.00000000
Wildcard: 0.0.63.255 00000000.00000000.00 111111.11111111
=
Network: 33.64.0.0/18 00100001.01000000.00 000000.00000000
Broadcast: 33.64.63.255 00100001.01000000.00 111111.11111111
HostMin: 33.64.0.1 00100001.01000000.00 000000.00000001
HostMax: 33.64.63.254 00100001.01000000.00 111111.11111110
Hosts/Net: 16382
Starting with the Class B sub network address of 33.64.0.0 / 18, create subnets to allocate IP addresses to the Ethernet LANs and WAN links in the network topology in picture. Use...