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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.
5.4 Dial-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.
5.4.1 Always-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-Out to 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-Band field 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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