Eicon Networks Eicon 1550, Руководство пользователя

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Security 64
Important Notes on Filters
• Profile information is not retained when the protocol (PPP or X.25) is changed. Since
filters apply to individual profiles, filter information is also lost when the protocol is
changed. Be sure that you have set up the Eicon 1550/1551 with the proper protocol,
and that you have created all the necessary profiles, before creating filters.
• If you create a new profile, then wish to add filters for the profile, you must first reset
the device . Click the ‘Reset Device’ button at the top of the browser window. You will
not be able to create filters for a new profile until the device is reset.
• Unlike other configurations settings, you do not have to reset the Eicon 1550/1551 to
make filters operational. Once you define and enable the filter, then press ‘Save’, as
described in the section
Defining a New Filter (below), the filter becomes active.
This means you must take special care in creating filters, as you could filter out your
own access to the box accidentally. Before creating complex filters, it is recommended
that you backup your configuration settings. See
Saving and Resetting
Configuration Settings on page 46.
Defining a New Filter
Filters become active immediately after they are defined, saved, and enabled.
1.
Start the web configuration interface and log in.
Note: If you have created a new profile since the last time the device was reset, reset the device now
by clicking ‘Reset Device’ at the top of the browser window. You must have at least one profile defined
before you can create a filter.
2.
Click the ‘+’ next to ‘IP’ in the menu to expand the IP tree.
3.
Click ‘Filters’ to display the ‘Filter Parameters’ page.
As shown in the above screenshot, the Eicon 1550/1551 assigns a default filter
automatically. This filter forwards all packets using any protocol, essentially letting
all data pass through unfiltered.