Lantech LPES-2208CA, Руководство пользователя

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IP Security
IP security function allows the user to assign 10 specific IP addresses that have
permission to manage the switch through the http and telnet services for the securing
switch management. The purpose of giving the limited IP addresses permission is to
allow only the authorized personnel/device can do the management task on the switch.

IP Security Mode: Having set this selection item in the Enable mode, the Enable
HTTP Server , Enable Telnet Server checkboxes and the ten security IP column
fields will then be available. If not, those items will appear in grey.

Enable HTTP Server: Having ticked this checkbox, the devices whose IP
addresses match any one of the ten IP addresses in the Security IP1 ~ IP10 table
will be given the permission to access this switch via HTTP service.

Enable Telnet Server: Having ticked this checkbox, the devices whose IP
addresses match any one of the ten IP addresses in the Security IP1 ~ IP10 table
will be given the permission to access this switch via telnet service.

Security IP 1 ~ 10: The system allows the user to assign up to 10 specific IP
addresses for access security. Only these 10 IP addresses can access and
manage the switch through the HTTP/Telnet service once IP Security Mode is
enabled.

And then, click
Apply
to have the configuration take effect.
[NOTE] Remember to execute the
―Save Configuration‖ action, otherwise the new
configuration will lose when the switch powers off.