ZyXEL Communications ONU-2024 Series, User Manual

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Chapter 27 Access Control
ONU User’s Guide
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27.9 Service Port Access Control
Service Access Control allows you to decide what services you may use to access the ONU.
You may also change the default service port and configure “trusted computer(s)” for each
service in the
Remote Management screen (discussed later). Click Access Control to go
back to the main Access Control screen.
Figure 121 Management > Access Control > Service Access Control
The following table describes the fields in this screen.
Table 84 Management > Access Control > Service Access Control
LABEL DESCRIPTION
Services Services you may use to access the ONU are listed here.
Active Select this option for the corresponding services that you want to allow to access the
ONU.
Service Port For Telnet, SSH, FTP, HTTP or HTTPS services, you may change the default service
port by typing the new port number in the
Server Port field. If you change the default
port number then you will have to let people (who wish to use the service) know the
new port number for that service.
Timeout Type how many minutes (1-255) a management session (via the web configurator) can
be left idle before the session times out. After it times out you have to log in with your
password again. Very long idle timeouts may have security risks.
Apply Click Apply to save your changes to the ONU’s run-time memory. The ONU loses
these changes if it is turned off or loses power, so use the Save link on the top
navigation panel to save your changes to the non-volatile memory when you are done
configuring.
Cancel Click Cancel to begin configuring this screen afresh.