Configuring The Tele3 Sp Modem Connection; Configuring The Tele3 Sp Wan Failover Feature - SonicWALL TELE3 SP Installation Manual

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3 Configuring the TELE3 SP Modem Connection

To improve the operational availability of networks and ensure fast recovery from network

failures, the SonicWALL has the capability of using a modem to dial a secondary network

connection for the WAN. In the event that the WAN Ethernet connection is lost or failing, the

modem dials an ISP using a preconfigured profile preventing a lengthy interruption in active

network connectivity.

Note: Using the WAN failover feature may cause disruption of some features such as One-to-

One NAT. See the SonicWALL TELE3 SP Administrator's Manual for affected features.

After configuring your computer on the LAN, you can configure the TELE3 SP modem

connection for ISP failover or as a primary dial-up access port.

Note: You cannot use the WAN failover feature if you have configured the TELE3 SP to use

Standard mode in the Network section of the Management interface.

The TELE3 SP modem can be used as a failover option when your "always on" DSL or cable

connection fails. The SonicWALL automatically detects the failure of the WAN connection and

uses the parameters configured for the modem to establish another active connection.

Note: The TELE3 SP modem can only dial out. Dialing into the internal modem is not

supported. However, an external modem can be connected to the CLI port for remotely

accessing the SonicWALL for out of band support.

To access the modem configuration section of your SonicWALL, log onto the Management

interface, and click Modem. There are two tabs used for modem configuration: Profiles and

Configure.

Configuring the TELE3 SP Modem Connection Page 39

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