Shows port-security details for an interface

Shows port-security details for an interface

Router#show version

 

·         View version information

 

Router#show running-config

 

·         View current configuration (RAM)

 

Router#show startup-config

 

·         View startup configuration (NVRAM)

 

Router#show flash

 

·         View Flash file directory

 

Router#show ip interface brief

 

·         Quick overview of all ports, ip addresses and statuses
administratively down = port is disabled (enable port)
up/up = port is operational
down/down = layer 1 issue (check cabling)
up/down = layer 2 issue (check protocols)

 

Switch#show port-security

 

·         Shows how many mac-addresses are allowed and if any are in violation

 

Router#show cdp neighbours

 

·         Shows connected cisco devices
Local Interface = Interface on router issuing the command
Port ID = Interface on the neighbor router that connects to you

 

Router#show cdp neighbors detail

 

·         Shows details about connected cisco devices

 

Switch#show spanning-tree

 

·         Shows priority, mac-address, whether the switch is the root bridge for a given VLAN, port roles (can be used to tell if RSTP is in use), hello timers

 

Switch#show interfaces trunk

 

·         Shows trunking and encapsulation information

 

Switch#show vlan brief

 

·         Shows configured VLANs and which ports belong to which VLANs. If port is missing, most likely is a trunk. Trunking ports do not show up here.

 

Switch#show vlan

 

·         Same as Switch#show vlan brief, but also includes per-vlan spanning-tree information.

 

Router#show flash

 

·         Shows IOS image name; Shows available flash memory

 

Switch#show vtp status

 

·         Shows the VTP information: Domain name, Client/Server/Transparent, Configuration Revision #

 

Router#show ip eigrp neighbours

 

·         Shows the eigrp neighbor table

 

Router#show access-list

 

·         Shows all access-lists configured

 

Router#show ip protocols

(for rip)

·         Shows routing protocols (RIP), updates information, version information, and networks being advertised

 

Router#show ip protocols

·        
(for EIGRP)

·         Shows routing protocols (EIGRP), Automatic summarization status, networks being advertised. If metric variance = 1, equal cost paths being used; if > 1, unequal cost paths being used

 

Router#show ip eigrp topology

 

·         Shows all routes currently part of he EIGRP database, including routes installed in the routing table and potential backup routes.

 

Router#show ip eigrp topology all-links

 

·         Shows all routes currently part of he EIGRP database, including routes installed that do not meet the feasibility condition.

To meet be a Feasible Successor:
Advertised Distance < Feasible Distance

 

Switch#show port-security interface fa0/2

 

·         Shows port-security details for an interface -- port status, last source mac address