1. Assignment 3 CSIT 220 Assigned: 9/19/2006 Due: 10/3/2006

2. Exercise for Chapter 4 and 5 This assignment is meant to re-enforce materials from Chapter 4 and 5 This assignment should be prepared in a word document and submitted to WebCT. The first part is a class exercise which will be completed in class. The second part is the homework which you will complete alone. This part is graded.

3. Homework Question 1 (25 points) What are the classes of the following IP addresses? 1. 208.34.54.12 2. 238.34.2.1 3. 114.34.2.8 4. 129.14.6.8 5. 241.34.2.8.

4. Question 2 – 50 points Find the netid and hostid of the following IP addresses from question 1.

5. Question 3 — 25 points For each address class, we know the IP address and subnet (also given). What is the first address for the network. –Class A IP Address: 25.34.12.56 Mask: 255.255.0.0 –Class B IP Address: 125.134.112.66 Mask: 255.255.224.0 –Class C IP Address: 182.44.82.16 Mask: 255.255.255.192