Student Name ______________________________
SEC450 Network Vulnerability Case Study—iLab7
Objectives
In this lab, students will examine the following objectives.
• Differentiate the use of IDS and IPS to detect network attacks.
• Design a network with IDS/IPS.
• Justify the use of IDS/IPS for a given network solution.
Scenario
A small company is using the topology shown below to secure its intranet while providing a less-secured environment to its eCommerce DMZ server. The company is concerned that firewalls are not
enough to detect and prevent network attacks. Hence, deployment of sensors to intrusion detection systems (IDS) and/or intrusion prevention systems (IPS) are needed in the network. Your job is to
provide recommendations, including a network design with IDS/IPS, that meet the company’s requirements.
Initial Topology
Company’s Requirements
1. Detect any malicious traffic entering the e-commerce server without performance penalty to traffic getting in the server from revenue-generating customers.
2. Stop any malicious traffic entering the human resources LAN (HR LAN).
3. Detect any malicious traffic entering the computer terminal in the marketing LAN (MKT LAN).
4. Stop any traffic entering the File Server in MKT LAN.
5. Deploy a centralized database and analysis console in the intranet to managing and monitoring both IDS and IPS sensors.
Note: RED text indicates the required questions to answer
Task 1—Layout the New Network Design
Click on the Initial Network Topology link on the iLab page in Week 7, and save in your computer the MS Powerpoint file Initial_Network_Topology_
initial network topology and pictures of all components needed to create the new network design.
Review the documentation provided in the references at the end of these instructions to get more familiar with the implementation of IDS and IPS in network design. You need to find a network
solution that meets the company’s requirements.
#1. Paste below your new network design diagram.
Task 2—IDS/IPS Recommendations
#2. Write an engineering specification document of at least 250 words (e.g., 1 page of full text, double space, and size 12) describing why your network’s design meets each of the company’s
requirements. Justify how each recommendation addresses the company’s needs.
Task 3—Conclusions
#3. Describe in two paragraphs your learning experience in this lab.
References:
1. SANS Institute. “Network IDS & IPS Deployment Strategies“—Webliography
2. Paquet, C. (2012). Implementing Cisco IOS network security (IINS) foundation learning guide (2nd ed.). Indianapolis, IN: Cisco Press.
3. NIST. “Guide to Intrusion Detection and Prevention Systems (IDPS)”—Webliography
