How to disable and re-enable a firewall interface via CLI

CLI commands to disable and re-enable a firewall interface

Sometimes it might be necessary to disable an interface via CLI when access via the Management Interface (GUI) is not possible.

Disable an interface:

1. Connect via serial cable or via SSH, using a Terminal Programme, such as PuTTy
   NOTE: To connect via SSH, SSH Management must be enabled on the interface you connect to (i.e. X0)
   
   
   
   
2. Log in using admin credentials
   
   
   
   
3. switch to config mode by entering the following command
   
   config (press Enter)
   
   
   
   
   
4. Enter the following command to disable the interface. 
   
   Shutdown [interface name] (press Enter)
   
   
   
   
5. Type commit (press Enter)
   
   
   
   
6. Exit config mode by typing end and then press Enter.
   
   

Enable an interface:

1. Connect via serial cable or via SSH, using a Terminal Programme, such as PuTTy
2. Log in using admin credentials
3. switch to config mode by entering the following command
   
   config (press Enter)
   
   
4. Type the following command to enable the interface
   
   no shutdown [interface name] (press Enter)
   
   
   
   
5. commit (press Enter)
6. Exit config mode by typing end and then press Enter.