Review

The following questions are intended to reinforce key information presented in the chapter. If you are unable to answer a question, review the appropriate lesson and then try the question again.

Your network configuration consists of an ISA Server installed on a DMZ. The address space behind the ISA Server consists of the 192.168.0.0/24 subnet, and the DMZ in front of the ISA Server computer has been configured with the 192.168.1.0/24 subnet. The ISA Server computer has an internal address of 192.168.0.1 and an external address of 192.168.1.99. The external gateway has an address of 192.168.1.1.

You are unable to access the Internet from any client computer behind ISA Server. On the ISA Server computer, you run the Route print command at the C:> prompt and receive the output shown in Figure 10.5.

Figure 10.5 Routing Table – Question 1

What is the error in the routing table? How can you fix the problem by using the Route command?

After you reboot the server specified in Question 1, you find that the problem returns. How can you avoid reconfiguring the routing table every time the computer reboots?
With what tool could you spot a SYN attack in progress? What is the telltale sign of a SYN attack?
What is the purpose of attempting to Telnet to a specific TCP or UDP port?
If you run the Local ISA Server VPN Configuration wizard and specify L2TP as the authentication protocol, how many IP packet filters will be created? Which ports will be opened statically by these IP packet filters?