Cisco Interface Range Configuration

Description:
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.

[divider]
[tabs]

[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
end

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

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
end

[/tab]
[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)

[/tab]
[/tabs]