Black Box LES144BA, LES1332A, LES1408A, LES1416A, LES1348A Dial-Out Failover, Always-on dial-out

On the Management LAN Interface - Network 2, configure the IP Address/Subnet Mask/Gateway the same as Network Interface - Network 1.

In this mode, Network 2 (eth1) is available as the transparent back-up port to Network 1 (eth0) for accessing the management network. Network 2 will automatically and transparently take over the work of Network 1, if Network 1 becomes unavailable for any reason. When Network 1 becomes available again, it takes over the work again.

5.4Dial-Out Failover

The internal or externally attached modem on the console server can be set up either

-in Failover mode where a dial-out connection is only established in event of a ping failure, or

-with the dial-out connection is always on

In both of the above cases in the event of a disruption in the dial-out connection, the console server will endeavor to re-establish the connection.

5.4.1Always-on dial-out

The console server modem can be configured for out-dial to be always on, with a permanent external dial-up ppp connection.

Select the System: Dial menu option and check Enable Dial-Outto allow outgoing modem communications

Select the Baud Rate and Flow Control that will communicate with the modem

In the Dial-Out Settings - Always On Out-of-Bandfield enter the access details for the remote PPP server to be called

Override DNS is available for PPP Devices such as modems. Override DNS allows the use of alternate DNS servers from those provided by your ISP. For example, an alternative DNS may be required for OpenDNS used for content filtering.

To enable Override DNS, check the Override returned DNS Servers box. Enter the IP of the DNS servers into the spaces provided.

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