Name: ____________________

CS 326e Pre-Lab 2, Edmondson-Yurkanan, Spring 2004

Router Configuration, Static Routing, and Access Lists

PLEASE SIGN UP TODAY for a LAB2 time slot 4/26 – 4/29

A completed pre-lab needs to be turned in at the beginning of the lab session.
Required Reading

A. It’s important that you study the lab handout to do the pre-lab. (especially Part A & D’s Introductions)

B. Routing vs forwarding. Security 7.1, Firewalls 7.6.1

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1. For this lab, (a) which one of the three subnets is subnet 192.168.100.0 and where is it? (b) What is LAN A’s subnet number and what is its subnet mask (using the /x format)?
   
   
   
   
   
   
   
2. How would you set up a static routing table entry in Group A’s router (give the complete ip route command) so that Group A can access Group B? (Refer to Part B – Step 5 of lab handout).

3. Is this a routing table (or really a forwarding table)? Explain your answer.

4. Write an access list rule that disallows users on PC1 in the lab to browse web servers outside of LAN A. Assume that LAN B is connected to the Internet. (Refer to Part D of the lab handout)
   
   
   
   
   
   
5. Read www.caida.org/analysis/security/sapphire/ and then write the firewall rule specifically filter only the “slammer” worm packets from coming into your home network.