## Administering a System Isolated From the LAN

Use the following procedure when your site's security requirements necessitate having the system isolated from any external local area network (LAN):

- Set up and configure the system using a management host that is connected by a serial cable to the system's service panel.
- When you are finished configuring the system, disconnect the management host.

Whenever the system needs to be reconfigured, reconnect the management host.

Another way to secure the system is to install a firewall between the management host for the system and the external LAN. For more information, see the system configuration instructions in the Sun StorEdge 6920 Getting Started Guide.

### Related Topics

- About Network Configuration Options