Question

Network Design proposal for a University
Problem:
Suppose you are asked to design of a network infrastructure for a university.
The university has 7 departments namely, IT, Finance, HR, Management, Faculty, students and R&D.
The university also has an ADSL internet connection which is shared for the different departments.
It is required that all the departments should have intercommunication.
The R&D department should not have access to the internet. Each of the department contain 50-100
users.
Explain your design giving importance to the following contents:
1. The network architecture model you will be choosing.
2. The active network components which are required ( Routers , Switches ).
3. The number of switches , routers which are required for the design.
4. The IP Design schema for the department.
5. Explanation of the details required to be configured on the Switch and how to create different
departments with VLAN.
6. Explanation of how to restrict internet connection for R&D Department and allow access for
the other departments with Access control lists on the Router.
7. Identify the feature on the router which is required for sharing the Internet for the users.
8. Identify the TCP/IP adapter parameters ( IP address, Subnet mask, Default Gateway, DNS
Server IP address) for the users.
9. Network Design Diagram.

can someone help me?

Answer 1

1. Tiered netwoking architecture.

2.

• Cables and connectors. These link together the computers, printers, servers and other equipment on your network.
• A router. This manages network traffic, ensuring devices can communicate with each other via both wired and wireless connections, and provides internet connectivity.
• A wireless access point (optional). This will extend your wireless network if the router is incapable of offering coverage in certain parts of the building.
• An internet connection. This could be a faster fibre connection or dedicated leased line.
• A hardware firewall. This creates a secure barrier between your network and the internet, blocking security threats. Networks sometimes include an on-site network server which runs central applications, acts as an email server and provides file storage.

3. Three(3) to four(4) routers will be enough.

4. IPv4 connectivity.

Suppose :

172.16.0.0 is the IP address schema.

Range : 172.16.0.0 - 172.31.255.255

where,

172.16 - This is the network part.

0.0 - This is the host part.

Note: The host part can be different but the network part should remain fixed.

6. The Switch of the R&D Department can be turned off to disconnect the supply.

5, 7, 8 :

Task	Description	For Instructions
1. Prepare your hardware to support IPv4.	Ensure that your hardware can be upgraded to IPv4.	Preparing the Network Topology for IPv4 Support
2. Get an ISP that supports IPv4.	Ensure that your current ISP supports IPv4. Otherwise, find an ISP who can support IPv4. You can use two ISPs, one ISP for IPv4 and one for ISP IPv4 communications.
3. Ensure that your applications are IPv4 ready.	Verify that your applications can run in an IPv4 environment.	How to Prepare Network Services for IPv4 Support
4. Get a site prefix.	Obtain a 48-bit site prefix for your site from your ISP or from the nearest RIR.	Obtaining a Site Prefix
5. Create a subnet addressing plan.	You need to plan the overall IPv4 network topology and addressing scheme before you can configure IPv4 on the various nodes in your network.	Creating a Numbering Scheme for Subnets
6. Design a plan for tunnel usage.	Determine which routers should run tunnels to other subnets or external networks.	Planning for Tunnels in the Network Topology
7. Create an addressing plan for entities on the network.	Your plan for addressing servers, routers, and hosts should be in place before IPv6 configuration.	Creating an IPv4 Addressing Plan for Nodes
8. Develop an IPv4 security policy.	Investigate IP Filter, IP security architecture (IPsec), Internet Key Exchange (IKE), and other Oracle Solaris security features as you develop an IPv4 security policy.	Part IV, IP Security
9. Enable the nodes to support IPv4.	Configure IPv4 in all routers and hosts.	IPv4 Router Configuration (Task Map)
10. Turn on network services.	Make sure that existing servers can support IPv4.	Major TCP/IP Administrative Tasks (Task Map)
11. Update name servers for IPv4 support.	Make sure that DNS, NIS, and LDAP servers are updated with the new IPv4 addresses.	Configuring Name Service Support for IPv4

9.