Command Show IP NAT Translation Use This command shows information about NAT translations that are active on the router. Syntax Router#show ip nat translation Example In the below example we configure R2 to translate addresses from 10.1.1.0/24 to 10.2.2.0/24. R2(config)#access-list 25 permit 10.1.1.0 0.0.0.255 R2(config)#ip nat inside source …

Command show ip route Use Allows you to see just the EIGRP routes installed in the routing table. Syntax R1#show ip route eigrp Example In the below example of show ip route R2(config-if)#do sh ip route Codes: C – connected, S – static, R – RIP, M – mobile, B …

Command Show IP OSPF Database Use Allows users to view the LSA database on the router. Syntax Router#show ip ospf database Example Here is the lsa database on R2. R2#show ip ospf databaseOSPF Router with ID (2.2.2.2) (Process ID 1)Router Link States (Area 0) Link ID ADV Router …

Command Show IP OSPF Inferface Use Displays the OSPF protocol information for the interfaces on the router. Syntax Router(config)#show ip ospf interface Example Here is the interface OSPF information on R2. R2#show ip ospf interface FastEthernet1/0 is up, line protocol is up Internet Address 10.2.2.2/24, Area 0 Process …

Command Show IP EIGRP Interface Use This command shows which interfaces are running the EIGRP process. Syntax Router#show ip eigrp interface Example In the below example we see the EIGRP interface information on R2 R2(config)#do show ip eigrp interface IP-EIGRP interfaces for process 100 Xmit Queue Mean Pacing …

Command Show IP DHCP Conflict Use This command shows information about IP conflicts that are detected during the DHCP negotiation. IP conflicts occur when hosts have statically assigned IP addresses that are within the DHCP configured range, but are not excluded. Syntax Router#show ip dhcp conflict Example Below …

Command Show Tech-Support Use This command is mostly used when you are speaking with Cisco TAC. It displays a lot of information about your device. Syntax Router#show tech-support Example Below is an example of show tech-support. R2#show tech-support —————— show version —————— Cisco IOS Software, 3600 Software (C3640-JK9S-M), Version …

Command Show IP Interface Use This command displays a summary of the IP information on an interface. It is useful for quickly verifying configurations. Syntax Router#show ip interface  OR Router#show ip interface <interface> Example In the below example we use show ip interface to quickly see how interfaces are configured. R2#show …

Command Show Frame-Relay LMI Use This command displays any LMI information the router has learned about. Syntax Router#show frame-relay lmi Example In this example, we use show frame-relay lmi to display any LMI information the router has learned. R4(config)#do sh frame lmi LMI Statistics for interface Serial0/0 (Frame Relay DTE) …

Command Show Debug Use Shows which debugging commands are active on the router. It is important to not leave unnecessary debugging on as it will eat up the CPU. Syntax Router#show debug Example In this example, we use the show debug command to see what debugging is enabled on the …