The assessment covers troubleshooting methodology, triage, resources, and tools. Another example for the subnet between R4 and R6, R4 has 10.10.46.4/24 and R6 has 10.10.46.6/24. Pix 515E firewalls running v8 of the CLI, Cisco routers, switches and. The third octet of the subnet is in the form of. OSPF is standards-based which means it is available on routers by Cisco as well. For instance, the loopback address of R6 is 6.6.6.6/32 as you can also see on the diagram.Įach subnet between the routers is written on the topology and every router is using as the last octet its router number. The default gateway of the PC is the router’s IP address.įor instance, on the subnet with PC4: PC1 has the IP address of 10.10.40.100/24 and R1’s interface IP address is 10.10.40.1/24.Įach router has a loopback address in the form of x.x.x.x/32, where x is the router number. As 80 of the Internets routers are Cisco, the CCNA certification is an. In this scenario, the two end users are User A and User B. technologies, troubleshooting, network device security, and much more Includes. Now lets troubleshooting the hardware failure. Below diagram illustrates a successful gateway-to-Cisco SIP IP phone call setup and call hold. The second type is software failure, which is a problem inside the switch. 1 and last octet of the PC’s IP address is. Call flow between Gateway-to-Cisco SIP IP Phone CallSuccessful Call Setup and Call Hold. Regarding the topology, on every subnet where a PC is connected, the router’s interface has an IP address whose last octet is. Just issuing a ping from PC1 towards PC2, PC3 and PC4 and receiving a reply should be enough as a confirmation that you successfully solved all the problems.

Cisco router troubleshooting