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Chapter 5 Advanced Configuration / Network Management
additional IP filter rule and click the Apply button, the new rule
will be added to this list.
The first step in configuring an IP filter rule is to determine if you
want to Allow or Deny access. Click the ap propriate radio
button under the Action field. You can also turn the IP filter rule
on or off using the Enabled or Disabled radio buttons under the
Status field. For easy reference, you can enter an
alphanumeric name in the Name field.
You can then specify the Source for packets to be filtered from
the drop-down menu. If the source is selected as LAN, then this
rule will apply to packets that are sent from PCs on your LAN to
the WAN (Internet). If the source is selected as WAN, then this
rule will apply to packets that are sent from PCs on the WAN. If
both are selected, then this rule will apply to packets that are
sent from PCs on both the WAN and your LAN.
A similar situation applies to the Destination drop-down menu.
If the destination is selected as LAN, then this rule will apply to
packets that are to be sent to PCs on your LAN. If the
destination is selected as WAN, this rule will apply to packets
that are to be sent to PCs on the WAN. If Both is s elected, then
this rule will apply to packe ts that are to be sent to PCs on both
the WAN and your LAN.
Next, you must enter either a single IP address or a range of IP
addresses in the IP Range Start and IP Range End fields.
Remember that IP addresses are in the form x.x.x.x − where x
varies from 0 to 255 − and that an IP address range must be
contiguous.