One of the most intimidating but extremely important subjects on the CCENT/CCNA or ICND1 exam is subnetting. We were all taught to think in decimal but computers think in binary and the idea of all those ones and zeros are just a bit overwhelming for most of us. A subnetwork, or subnet, is a subdivision of an IP network address providing multiple smaller networks. Subnetting is the practice of dividing a network IP address into two or more networks.
This lab covers a range of problems and requires that you make use of your troubleshooting skills to resolve the routing and switching problems introduced. This lab focuses on routing and switching connectivity issues related to EtherChannel, STP, OSPF, EIGRP, and ACLs.
Continue reading “CCNP Lab Troubleshooting Complex Environments” »
In This Free Cisco Lab we will configure Open Shortest Path First (OSPF) authentication using MD5 authentication to allow the authenticate OSPF neighbors. You can enable authentication in OSPF in order to exchange routing update information in a secure manner. OSPF authentication can be implemented in one of three methods. Continue reading “Free Cisco GNS3 Lab OSPF MD5 Authentication” »
