Telnet; Switch Lockout; Resetting The Defaults; Table 77 Telnet Troubleshooting - ZyXEL Communications AAM1212 User Manual

AAM1212 User's Guide

33.11 Telnet

I cannot telnet into the AAM.

Table 77 Telnet Troubleshooting

STEPS CORRECTIVE ACTION
1 Make sure that a telnet session is not already operating. The AAM only accepts one telnet
session at a time.
2 Make sure that your computer's IP address matches a configured secured client IP address
(if configured). The AAM immediately disconnects the telnet session if secured host IP
addresses are configured and your computer's IP address does not match one of them.
3 Make sure that you have not disabled the Telnet service or changed the server port number
that the AAM uses for Telnet.
4 Ping the AAM from your computer.
If you are able to ping the AAM but are still unable to telnet, contact the distributor.
If you cannot ping the AAM, check the cable, connections and IP configuration.

33.12 Switch Lockout

You could block yourself (and all others) from accessing the switch through the web
configurator if you do one of the following:
1 Filtering all traffic to the CPU port. The "CPU port" is the management port of the
switch.
2 Disabling all ports.
3 Misconfiguring the text configuration file.
4 Forgetting the password and/or IP address.
5 Preventing all services from accessing the switch.
6 Changing a service port number but forgetting it.
Note: Be careful not to lock yourself and others out of the AAM.

33.13 Resetting the Defaults

You can upload the factory-default configuration file to reset the AAM to the default settings.
This means that you will lose all previous configurations and the speed of the console port will
be reset to the default of 9600bps with 8 data bit, no parity, one stop bit and flow control set to
none. The password will also be reset to "1234" and the IP address to 192.168.1.1.
272 Chapter 33 Troubleshooting