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Configuring Firewall Settings
84 EN/LZT 108 6492 R2 - October 2003
Field Description
Rule ID:
Rules are processed from lowest to highest on
each data packet, until a match is found. It is
recommended that you assign rule Ids in
multiples of 5 or 10 (e.g. 10, 20, 30) so that you
leave enough space between them for inserting a
new rule if necessary.
Action:
The action can be Accept (forward to
destination) or Deny (discard the packet).
Direction:
Incoming refers to packets coming from the
LAN, and outgoing refers to packets going to the
Internet.
You can use rules that specify the incoming
direction to restrict external computers from
accessing your LAN.
Interface:
The interface on which the rule will take affect.
In Interface:
The interface from which packets must have
been forwarded to the interface specified in the
previous section. This option is valid only for the
outgoing direction.
Log Option:
When Enable is selected, a log entry will be
created on the system each time this rule is
invoked.
Security Level:
The security level that must be enabled globally
for this rule to take affect. A rule will be active
only if its security level is the same as the
globally configured setting (shown on the main IP
Filter page). For example, if the rule is set to
“Medium” and the global firewall level is set to
“Medium”, then the rule w ill be active; but if the
global firewall level is set to “High” or “Low”, then
the rule will be inactive.
Blacklist Status:
Specifies whether or not a violation of this rule w
ill result in the offending computer’s IP address
being added to the Black List, which blocks the
router from forwarding packets from that source
for a specified period of time.
Log Tag:
A description of up to 16 characters to be
recorded in the log in the event that a packet
violates this rule. Be sure to set the Log Option to