View source for Ios

=Information about Cisco ios=
==login==
 First mode is called "privileged mode"
==disable paging==
 terminal length 0
 terminal pager 0

==Show information about switch==
 show stack

==Which switches belong to switch stack.==
 show switch

==How can we tell the stackwise cables were properly inserted?==
 show switch stack-ring speed

==List ports==
 show ip int brief
==show vlan information==
 show vlan brief
==show info about port==
 sh int Gi1/0/16 switchport
 sh int Gi4/0/16 switchport

==show arp cache==
 sh ip arp
show arp and grep for
 sh ip arp | i e0db.5514.25e4

==show mac addresses==
 show mac-address-table
or
 show mac address-table
for a vlan
 sh mac address-table vlan 105
==clean mac cache==
 clear mac address-table dynamic

==grep==
search for string
 | i string
exclude string
 | -e string
==access port good example==
 se2-l2-sw01#show run int gig 1/0/15
 Building configuration...
 
 Current configuration : 115 bytes
 !
 interface GigabitEthernet1/0/15
  switchport access vlan 105
  switchport mode access
  spanning-tree portfast
 end
==nat==
 ip nat service gatekeeper
 no ip nat service gatekeeper
=show running static=
 Show static mapping.
=show routes=
 show route    # asa
 show ip route # ios
=config changes=
 config terminal
=show ip addresses=
 show ip               # asa
 sh ip interface brief # ios
=show version=
 show version
=ASP drops=
Accelerated Security Path (ASP) This command gives an overview of packets that the ASA drops with a reason. Let’s have a look:
 show asp drop
 clear asp drop
=look at drops=
 capture ASP_DROPS type asp-drop acl-drop
 show capture ASP_DROPS