... output used in this lab is produced from 1 - 5 CCNA 2: Routers and Routing Basics v 3.0 - Lab 4 .2. 2 Copyright 20 03, Cisco Systems, Inc. 1 721 series routers. Any other router used may produce ... signal Are the keepalive messages being received? 2 - 5 CCNA 2: Routers and Routing Basics v 3.0 - Lab 4 .2. 2 Copyright 20 03, Cisco Systems, Inc. Step 7 Enter privileged EXEC mode ... previous steps, logoff by typing exit. Turn the router off. 3 - 5 CCNA 2: Routers and Routing Basics v 3.0 - Lab 4 .2. 2 Copyright 20 03, Cisco Systems, Inc. Erasing and reloading the router Enter...