Lucent Technologies Cajun P220, Operation Manual, Page: 73 / 335

Configuring the Cajun P550 Switch (Layer 2 & Layer 3)
Cajun P550/P220 Switch Operation Guide 3 - 27
4. In the Modem Init Cmd field, enter your modem initialization command .
The default modem configuration string is AT&D0S0=1 .
5. Click APPLY to save your changes, or CANCEL to restore previous settings.
Note: If you misconfigure your PPP serial console port, you can regain CLI access to
correct the configuration parameters. For more information, refer to
“Regaining Configuration Access to the PPP Serial Port Console”.
Safety Tip: To successfully dial-in with PPP to the switch, you must also configure an IP
address and interface for the PPP Serial Interface (Serial-Console). Refer to
“Configuring the IP Interface for the PPP Console”, later in this chapter for
more information.
Regaining Configuration Access to the PPP Serial Port Console
If the PPP serial port console is configured incorrectly, the command line interface (CLI)
becomes temporarily unavailable for reconfiguration.
To regain access to the CLI when the console port is in PPP mode:
1. In the console window, enter
TTY
. The CLI login prompt displays. It may be
necessary to press Enter several times to see the login prompt. You may see the
modem init command string.
2. At the Login prompt, enter your user name . The password prompt displays.
3. At the Password prompt, enter your password . The Cajun CLI prompt displays.
4. Enter the PPP configuration commands necessary to start PPP. Refer to
“Configuring the Serial Console Port as a PPP Console”, earlier in this chapter, and
“Creating an IP Interface”, in Chapter 7, for more information on PPP
configuration commands.
Table 3-18. Modem Configuration String Parameters
Parameter Definition
&D0 Disable DTR
S0=1 Auto-answer mode (one ring)
CD follows carrier Depends on modem
E0 Disable local echo
Software Flow Control
(Receive and Transmit) Depends on modem