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Cisco SDM Express
OL-7141-04
Chapter1 Cisco SDM Express
WAN Interface Selection

Interface List

Displays the interface name, IP address, and interface type for all WAN interfaces.
If no IP address is configured for an interface, the text “no IP address” is
displayed.
Note If you did not configure the default LAN interface with a new IP address in the
LAN Interface Configuration window, it is listed in this window, and can be
configured as a WAN interface.
Refresh Button
Visible if you are editing an initial configuration. Click Cisco SDM Express
Buttons for more information.
Serial Connection
Create or edit a serial connection in this window.

Encapsulation List

Select the encapsulation for this connection. If you are editi ng a connection, you
cannot change the encapsulation type in this window. You must delete the
connection, and then create a new connection with the encapsulation type you
need.
•Frame Relay—A switched data link layer protocol that handles multiple
virtual circuits using HDLC encapsulation between connected devices.
•HDLC—High-Level Data Link Control. A bit-oriented synchronous data
link layer protocol developed by the International Standards Organization
(ISO). HDLC specifies a data encapsulation method on synchronous serial
links using frame characters and checksums.
•PPP—Point-to-Point Protocol.
Authentication Details
If you select PPP encapsulation, you can provide authentication information that
your Internet service provider may require.