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E120 Router and E320 Router

To create dynamic IP tunnels on an E120 router or an E320 router, you must install an ES2 4G line module (LM) with an ES2-S1 Service I/O adapter (IOA), or an IOA that supports the use of shared tunnel-server ports. For information about installing modules in these routers, see the E120 and E320 Hardware Guide.

The ES2 4G LM and ES2-S1 Service IOA combination provides a dedicated tunnel-server port that are always configured on the IOA. Unlike SMs, the ES2 4G LM requires the ES2-S1 Service IOA to condition it to receive and transmit data to other line modules. The ES2-S1 Service IOA also does not have ingress or egress ports.

You can also create IP tunnels on IOAs that support shared tunnel-server ports. You can configure (provision) a shared tunnel-server port to use a portion of the IOA's bandwidth to provide tunnel services. For a list of the IOAs that support shared tunnel-server ports, see the E120 and E320 Module Guide.

All line modules forward traffic to tunnels. For information about which IOAs accept traffic for tunnels, see the E120 and E320 Module Guide.

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