Westermo MRD-3x0 - Manual (Page 71)

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5.4 Custom Filters
5.4.1 Description
Custom Filters allow new rules to be added to the firewall to
allow or deny specific packets. Packets can be matched based
on which of the unit's network interfaces they arrive on or
will leave on, the protocol, the source or destination address.
Some example custom filters are:
A filter than only allows traffic from a particular host on •
the WAN to access through to the LAN ports.
A filter that drops all traffic from a particular host on the
•
WAN.
To select the Custom Filters page click the Custom Filters tab
on the sub-menu. Figure 55 shows the custom filter page with
no filters configured.
Figure 55: Custom Filter main page with no filters configured.