Perle Systems SCS8C DC User Manual

 356

Configuring PPP Dial On Demand

The IOLAN can be configured to access remote networks via modems connected to the serial 
interface of the IOLAN. By configuring the IOLAN for the 

profile, data that 

is destined for the remote network will initiate a modem connection to the remote network to route 
the data to its appropriate destination.

If you want to configure a serial port to use PPP dial on demand, do the following:

Create an entry for the modem and its initialization string (

, 

, 

 tab).

Set the serial port to 

.

In 

, select the 

 tab. Enable the 

 option and select 

. Set the 

 parameter to the modem you just added. Enter the 

number that the 

modem will be calling.

Still on the 

 tab, set the 

parameter to a value that is not zero (setting this 

value to zero creates a permanent connection).

On the 

 tab, enter one of the following:

z

A 

 and/or 

 

 

z

A 

 and/or 

 

Note that this IP address or interface identifier should be on its own unique network; that is, not 
part of the local or remote networks. 
In this example, the local network has an IPv4 address of 172.16.0.0/16 and the remote network 
has an IPv4 address of 204.16.0.0/16, so we arbitrarily assigned the PPP

 

as 

 and the PPP

 as 

. 

Network

Network