Step 9 – Configure a Firewall ACL.
The outside server (Web/DNS server) should be able to ping www.xyzcorp.com.
Implement a basic firewall ACL. Configure a named ACL called FIREWALL to achieve the following:
a. Allow inbound HTTP requests to the [login to view URL] server.
b. Allow only established TCP sessions from ISP and any source beyond ISP.
c. Allow only inbound ping replies from ISP and any source beyond ISP.
d. Explicitly block all other inbound access from ISP and any source beyond ISP.
The outside server should not be able to ping the server at [login to view URL] but should be able to request a web page from it.
Step 10 – Test overall connectivity and examine the configuration.
Perform a final connectivity test to make sure that everything is functioning as expected. Verify the routing tables on all routers and check to see that all PCs can ping other PCs as well as the Web server. Comment on any observations.