You are the network administrator for RouterSim.com. A user cannot reach the corporate server from their remote office. The IP address of the host is 192.168.254.10/24, the default gateway of the host is 192.168.254.1, and the server is 192.168.10.10/24. You have the user type the following from a DOS prompt: ping 127.0.0.1; this is successful. You then have the user type ping 192.168.254.10; this is also successful. However, a ping to the default gateway is unsuccessful. What could the problem be?