The show commands are very useful Cisco IOS commands. The Cisco Router show commands can be used to examine nearly everything about a Cisco router and its configuration. Following table lists important Cisco Router Show commands and their use.
|Cisco IOS Show Command
||Displays statistics for all interfaces
|OmniSecuR1#show interface fa0/0
||Displays statistics of fa0/0 interface.
You may use other interface also.
|OmniSecuR1#show ip interface brief
||Displays a summary of all IPv4 interfaces, including
status and IPv4 address assigned in router "OmniSecuR1"
|OmniSecuR1#show ipv6 interface brief
||Displays a summary of all IPv6 interfaces, including
status and IPv6 address assigned in router "OmniSecuR1"
|OmniSecuR1#show controllers serial 1/0
||Displays statistics for interface hardware serial 1/0.
Statistics display if the clock rate is set and
if the cable is DCE, DTE, or not attached
||Displays the system clock of the router "OmniSecuR1".
||Displays the configured hostnames and their
corresponding IP addresses of the router "OmniSecuR1"
||Displays all users connected to the router "OmniSecuR1"
||Displays history of Cisco IOS commands used
||Displays info about Flash memory
||Displays info about loaded Cisco IOS software
||Displays the ARP table of the router "OmniSecuR1".
ARP table is the table which contains the
resolved IPv4 address to MAC address mappings.
||Displays status of configured Layer 3 protocols
||Displays configuration saved in NVRAM
||Displays configuration currently running in RAM
|OmniSecuR1#show ip route
||Displays the IPv4 routing table of the router "OmniSecuR1"
|OmniSecuR1#show ipv6 route
||Displays the IPv6 routing table of the router "OmniSecuR1"