4-Port ADSL Router User Manual

Configuring Network Address Translation
70
Follow the following instructions to add an RDR rule (see steps
1-4 under The NAPT Rule for specific instructions corresponding
to steps 1 and 2 below):
1.
Display the [NAT Rule – Add] Page, select [RDR] as the
[Rule Flavor:], if necessary, and enter a [Rule ID].
2.
Select the interface on which this rule will be effective.
3.
Select a [Protocol:] to which this rule applies, or choose
[ANY]. This selection specifies which type of Internet
communication will be subject to this translation rule. You can
select [ANY]
if the rule applies to all data. Or, select [TCP], [UDP], [ICMP],
or a number from [1-255] that represents the Internet Assigned
Numbers Authority (IANA)-specified protocol number.
4.
In the [Local Address From:] and [Local Address To:] fields,
type the same private IP address, or the lowest and highest
addresses in a range:
•
If you type the same IP address in both fields, incoming
traffic that matches the criteria you specify in steps 5 and
6 will be redirected to that IP address.
•
If you type a range of addresses, incoming traffic will be
redirected to any available computer in that range. This
option would typically be used for load balancing, whereby
traffic is distributed among several redundant servers to
help ensure efficient network performance.
These addresses should correspond to private addresses
already in use on your network (either assigned statically to
your PCs or assigned dynamically using DHCP, as discussed
in the Quick Start, Configuring Your Computers).