2. You have decided that while the help desk needs to be able to ping client computers to verify that they are responsive, general users do not need the ability to ping other systems. In this lab, you are going to enable the firewall rules to allow pinging of client computers and to prevent all clients, except the helpdesk computer (LON-CL2), from generating pings. Objectives Test ping in the network. Create an inbound firewall rule. Create an outbound firewall rule. Test firewall rules.

Task 1. Test ping in the network.

You must implement a firewall rule on LON-CL1. The rule must allow inbound ICMPv4 traffic.
The main tasks for this exercise are as follows:
1. Test ping connectivity.
2. Configure an inbound rule.
3. Test the inbound rule.

Task 1: Test ping connectivity
1. Log on to LON-CL2 as Adatum\Administrator.
2. Open a command prompt, and ping LON-CL1.

Task 2: Configure an inbound rule
1. Log on to LON-CL1 as Adatum\Administrator.
2. Open Control Panel, and then open Windows Firewall.
3. Enable File and Printer Sharing (Echo Request – ICMPv4-In) for the domain profile.

Task 3: Test the inbound rule
• Change to LON-CL2, and ping LON-CL1.

 At the end of this exercise, you will have configured and tested an inbound firewall rule.

Task 2. Creating an Outbound Firewall Rule

You must implement a firewall rule on LON-CL1 that blocks outbound ICMPv4 traffic.
The main tasks for this exercise are as follows:
1. Test ping connectivity.
2. Configure an outbound rule.
3. Test the outbound rule.

Task 1: Test ping connectivity
1. Change to LON-CL1.
2. Open a command prompt, and ping LON-DC1.

Task 2: Configure an outbound rule
1. On LON-CL1, restore the Windows Firewall with Advanced Security window.
2. Enable an outbound rule that blocks ping on the Domain profile for LON-CL1.

Task 3: Test the outbound rule
• Restore the command prompt, and then ping LON-DC1.