The port is often the default management interface for initial setup via J-Web.
Assign to port: set interfaces [PORT] unit 0 family ethernet-switching vlan members [VLAN-NAME] . Juniper Ex4200 Configuration Manual
To wipe the device, use load factory-default followed by commit . 5. Virtual Chassis Configuration EX 3200 and EX 4200 Switch Quick Start - Juniper Networks The port is often the default management interface
The following commands establish basic system identity and security: set system host name [NAME] . Juniper Ex4200 Configuration Manual
You must set a root password before you can commit any changes: set system root-authentication plain-text-password .
Run commit to apply and save the current draft.