Nortel Networks NN46110-602 - Manual (Page 170)

170 Appendix B Using serial PPP
NN46110-602
Cause:
You were dialed in and managing the VPN Router remotely using PPP and you
changed the baud rate and applied it, but now you cannot manage the VPN
Router.
Action:
To manage the VPN Router, disconnect the dial-up connection and try to
re-establish it. This gives the modem a chance to renegotiate the baud rate with
the VPN Router.
Cause:
You are set up to use PPP but want to use the serial port for the serial menu.
Action:
Choose the serial port mode Serial Menu. Press OK using the Web management
interface (System
> System Settings) and restart the VPN Router. To use the
Serial Menu, you must install a serial cable in place of the modem. Remember to
power off the VPN Router when plugging in and unplugging the serial port
connection; otherwise, you can damage system components.
Cause:
You are set up to use the Serial Menu but want to use the port for PPP.
Action:
You can change the serial port settings (System
> System Settings) or the Serial
Menu itself. For these changes to take effect, restart the VPN Router. For the best
results, connect the modem while the VPN Router is turned off.
Cause:
You are using a dial-up serial PPP connection and you encounter repeated CRC
errors.