Cisco Interface Range Configuration

During configuration of a new user access switch or other device with a switchport module, it can be beneficial to range all of the ports with a default configuration to ensure uniformity and save time. The following example enters a range configuration for FastEthernet ports 1-48. You may need to modify FastEthernet to your own port type such as GigabitEthernet, and you also may need to modify the port numbers if you have a different amount or are saving some for trunk links.


[tab title=”View Configuration”]
View the configuration:

interface range FastEthernet1 - 48
 description ACCESS-PORT
 switchport mode access
 ! Change the following vlans to match your network.
 switchport access vlan 5
 switchport voice vlan 10
 ! Remove the following 2 lines for any trunk ports.
 spanning-tree portfast
 spanning-tree bpuguard
 ! The following lines are strictly for security purposes and can be removed if desired.
 no cdp enable
 switchport port-security
 switchport port-security mac-address sticky
 switchport port-security maximum 2
 ! Remove the following to keep the ports closed initially.
 no shutdown

[tab title=”Edit Configuration”]
Edit and Use:

[tab title=”Show Commands”]

  • show int status
  • show int status err-disabled
  • show vlan brief (confirm what laye 2 vlans are created)
  • show port-security int f0/4 (show information about a specific port)