Riello UPS Netman208 Installation And User Manual page 28

Notes and suggestions
Safe rule
During first configuration/testing phase, please set a "safe rule" as 1st rule (at the top of
the rule table) always allowing all traffic to the Netman 208, incoming from a specific IP
or MAC address (from the machine where the User is configuring the Netman 208):
In this way, if some rules are set wrong, the User can always connect to the Netman 208
and adjust the wrong rules. Only after a successful test the User can remove this "safe
rule" if no more needed.
Without any "safe rule" the User risks to lose connection to the Netman 208, with unique
solution of resetting to default (by physical button) losing any configuration previously
applied.
Beware the action defined by "Default Incoming Rule": when is set to DROP only the
traffic ACCEPTED by the custom rules in the table is allowed.
The worst condition possible is setting all the rules in the table with DROP and Default
Incoming Rule as DROP: in this way the Netman 208 will refuse any connection and
becomes no more reachable: in this case, it must be reset to default by pressing the
physical button, losing any configuration applied to the Netman 208 configuration.
For the protocols labelled as UPSMON*, WEB-HTTP* and WEB-HTTPS*, firewall rules
automatically follow the settings/port defined the related configuration sections:
UPSMON* (default port 33000) HTTP* (default port 80)
HTTPS* (default port 443)
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