Configuring network interfaces Configure serial interfaces
Digi TransPort® Routers User Guide
324
Configure protocol bindings
Digi routers can be configured to allow using different protocols on different interfaces. The process of
selecting which protocol to use on a particular interface is referred to as binding. For example, you
could use Serial (ASY) port 0 for an ISDN B channel X.25 connection, where PAD 0 is bound to Serial 0
(assuming that PAD 0 is the required PAD). To complete this example it is also necessary to associate
the PAD with a LAPB instance using the appropriate page. Protocols are bound to serial interfaces
using a table with a drop-down list box for selecting the protocol and a drop-down list for selecting the
serial port.
By default, if no specific protocol is bound to a serial interface, a PPP instance is automatically
associated with that port. This means that PPP is treated as the default protocol associated with the
serial ports.
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1. Go to Configuration > Network >Interfaces > Serial >Protocol Bindings.
2. Bind protocols to serial interfaces:
Protocol
Select the desired protocol from this drop-down list.
Bound to
Select the desired serial port from this drop-down list.
Add
Click this button to add the binding.
Delete
When a binding has been added, it appears in the table and a Delete button is enabled in the
right-hand column. Click this button to remove the binding. Note that the binding does not
come into force until the Apply button at the bottom of the page has been clicked.
3. Click Apply.
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