Tripp Lite B093-004-2E4U-V Owner's Manual

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5.3.2 Failover Dial-Out

The console servers can be conﬁgured so a dial-out PPP connection is automatically set up in the event of a disruption in the

principal management network.

Note: Only SSH access is enabled on the failover connection. In ﬁrmware versions later than 3.0.2, HTTPS access is also enabled so the

administrator can use SSH (or HTTPS) to connect to the console server and ﬁx the problem.

When conﬁguring the principal network connection in System: IP, specify the failover interface that will be used when a fault

has been detected with Network / Network1 (eth0). This can be either internal modem or the dial serial DB9 (if you are using

an external modem on the console port) or USB modem (if you are using a plug-in USB modem on a B093).

• Specify the Probe Addresses of two sites (the Primary and Secondary) that the IM console server is to ping to determine if

Network / Network1 is still operational.

• Select the System: Dial menu option and the port to be conﬁgured (Serial DB9 Port, PC Card or Internal Modem Port).

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

Note: You can further conﬁgure the console/modem port to include modem init strings by editing /etc/mgetty.conﬁg ﬁles as described in the

13. Management.

• Check the Enable Dial-Out Access box and enter the access details for the remote PPP server.

5. Firewall, Failover and OOB Access

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM