Telnet; Switch Lockout; Resetting The Defaults - ZyXEL Communications Multi-service Access Platform MSAP2000 User Manual

Adsl access module 12-port adsl2+ multiplexer network module
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MSAP2000 AAMS User's Guide

32.10 Telnet

I cannot telnet into the MSAP2000 AAMS.
Table 77
STEPS
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32.11 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 MSAP2000 AAMS.

32.12 Resetting the Defaults

You can upload the factory-default configuration file to reset the MSAP2000
AAMS 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.
Telnet Troubleshooting
CORRECTIVE ACTION
Make sure that a telnet session is not already operating. The MSAP2000 AAMS only
accepts one telnet session at a time.
Make sure that your computer's IP address matches a configured secured client IP address
(if configured). The AAMS immediately disconnects the telnet session if secured host IP
addresses are configured and your computer's IP address does not match one of them.
Make sure that you have not disabled the Telnet service or changed the server port
number that the MSAP2000 AAMS uses for Telnet.
Ping the MSAP2000 AAMS from your computer.
If you are able to ping the AAMS but are still unable to telnet, contact the distributor. If you
cannot ping the AAMS, check the cable, connections and IP configuration.
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