Reference Guide for the Model RP114 Web Safe Router
10-10 Configuring Filters
Applying a Filter Set
After configuringa filter set in Menu 21, you must specify how the filter will be used.Filters are
appliedat the LAN interface in Menu 3.1 or at the WAN interfacein Menu 4.1. You must specify
whetherthe filter is applied to incoming or outgoing packets, and whether filter sets are used alone
or combined.You can apply up to four filter sets to the same port by entering the numbers of the
desired filter sets separated by commas, with no spaces. In the fo llowing example, the user
specifiesthat filter sets 1, 3, and 10 are to be applied to packets entering the router from the LAN:
Incoming Filter Sets = 1,3,10
In cascadingfilter sets, you may need to modify all but the last set in order to have eachset
continue to the next set rather than terminate . In the example above, you may need to modify Sets
1 and 3 so that they continue to Set 10. On the last rule of a standalonefilter set, you normally set
“Action ifM atched”and “Action if Not Matched” to either “forward”or “drop.” However, if you
cascadethe filter set to another filter set, one of these actions must be “Check Next Rule.”
Log Determine if you want to log the results of packets attempting to pas s the filter rule.
Theseresults are displayed on the System Log (see “View Error Log”onpage9-4).
Sevenoptions are available:
• None—No packets are logged (default).
• Action Matched—Only packets that matchthe rule parameters are logged.
• Action Not Matched—Only packets that do not match therule parameters are logged.
• Both—All packets are logged.
• Check Next Rule (default)
•Forward
•Drop
ActionMatched,
ActionNot
Matched
Iftheconditionsforthefilterrulearenotmet,youcanspecifywhattodowith
thepacket. Three options are available:
• Check Next Rule (default)
•Forward
•Drop
Table10-5. Generic Filter Rule Fields (continued)
Field Description