TRENDnet TDM-E400 - Manual (Page 152)

TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
152
2. Enter or select data for each field that applies to your rule,
defined as follows:
Field Description
Rule ID Each rule must be assigned an ID number. Rules are
processed from lowest to highest on each data
packet, until a match is found. Rule numbers up to 99
are reserved for preconfigured system rules. Rule IDs
must start at 1000 or above so that they do not
interfere with system-defined rules. It is also
recommended that you assign rule IDs in multiples of
5 or 10 (e.g., 1000, 1010, 1020) so that you leave
enough room between them for inserting new rules if
necessary.
Interface The interface on which the rule will take effect.
Direction Specifies whether the rule should apply to packets
that are incoming or outgoing on the selected
interface. Incoming refers to packets coming in to the
LAN on the interface, and Outgoing refers to packets
going out from the LAN. You can use rules that
specify the incoming direction to restrict external
computers from accessing your LAN.
In Interface The interface from which packets must be forwarded
in order for this rule to be invoked. For example, if the
Interface criteria is set to ppp-0, then the In Interface
could be set to usb-0. This specifies that the rule
applies only to packets passed from the USB
computer through the router's PPP interface. This
option is valid only for rules defined for the outgoing
direction.
Action Specifies what the rule will do to a packet when the
packet matches the rule criteria. The action can be
Accept (forward to destination) or Deny (discard the
packet). Do not select the CallMgt option.
Log Option When Enabled is selected, a log entry will be created
on the system each time this rule is invoked. Logging
may be helpful when troubleshooting. You can also
disable logging, log only packets that match rules, or
log only packets that do not match rules. This
information can be e-mailed to designated
administrators. See “Configuring Firewall Settings” on
page 135 for instructions.
3. When you are finished, you can enable the rule by clicking
the Enable radio button at the top of the Bridge Filter Rule -
Add page.
Note, however, that a newly created rule, even when enabled,
will not have any effect on traffic until at least one subrule has
been added and enabled. You can leave the rule disabled for
now (the default) and enable it after configuring subrules.
4. Click and then click on the confirmation
page.
The Bridge Filter Configuration page displays with the new rule
at the bottom of the table.