4. Configuration Options
4-100 September 2002 9128-A2-GB20-80
Configuring the Modem Port
Select Modem Port from the Management and Communication menu to con figure
the modem port (seeTable4-25, Modem Port Options).
Main Menu
Configuration
Management and Communication

Modem Port

Link Protocol
Possible Settings: PPP, SLIP
Default Setting: PPP
Specifies the link-layer protocol to be used. Only in effect when the COM port is
configured as a network communication link (Port Use option is set to Net Link).
Display Conditions
This option only appears when Port Use is set to Net Link.
PPP Point-to-Point Protocol.
SLIP Serial-Line Internet Protocol.
Table 4-24. Communication Port Options (5 of 5)
Table 4-25. Modem Port Options (1 of 4)
Port Use
Possible Settings: Terminal, Net Link
Default Setting: Termin al
Assigns a specific use to the modem port.
NOTE: If the Default IP Destination is set to Modem (see Table 4-17, Node IP Options)
and you change Port Use to Terminal, the Default IP Destination is forced to None.
Termina l The modem port is used for the asynchronous terminal connection.
Net Link The modem port is a network communications link to the IP network. You
cannot change Port Use to Net Link when the Modem PassThru feature is enabled. When
you try, the Cannot change Port Use Modem PassThru is enabl ed message
is displayed. See
Modem Operation
in Chapter7,
Operation and Maintenance
, for more
information about Modem PassThru operation.
Dial-In Access
Possible Settings: Enable, Disable
Default Setting: Enable
Controls whether external devices can dial-in to the system through the internal modem.
This allows dial-in access by a remote terminal when Port Use is set to Terminal. When
Port Use is set to Net Link, Dial-In Access must be set to Enable to allow an external NMS
to dial in to the device.
Enable Dial-in access is allowed. Incoming calls are answere d.
Disable Dial-in access is not allowed. Incoming calls are not answered. You cannot
disable Dial-In Access when the Modem PassThru feature is enabled. When you try, the
Cannot change Dial-In A ccess when Modem PassThr u is enabled message
is displayed. See
Modem Operation
in Chapter7,
Operation and Maintenance,
for more
information about Modem PassThru operation.