TRENDnet TDM-E400 - Manual (Page 132)

TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
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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 starting and ending IP addresses that identify the range
of private address you want to be translated. Or, type the
same address in both fields.
If you specify a range, each address will be translated in
sequence to a corresponding address in a range of global
addresses (which you specify in step 5).
The address (or range of addresses) should correspond to
private address (or addresses) already in use on your network.
These may be assigned statically to your PCs or dynamically
using DHCP, as discussed in the Quick Start chapter.
5. In the Global Address From and Global Address To fields,
type the starting and ending address that identify the range
of public IP addresses to translate your private addresses to.
Or, type the same address in both fields (if you also
specified a single address in step 4).
6. In the Destination Address From/To fields, specify a
destination address (or range) if you want this rule to apply
only to outbound traffic to the address (or range).
If you enter only the network ID portion of the destination
address, then the rule will apply to outbound traffic from all
computers on network.
7. From the Destination Port From/To drop-down lists, select a
port type if you want the rule to apply only to outbound traffic
to servers of this type. Otherwise, leave them set to Any
other port.
If you want to specify a port type that is not available in the
drop-down lists, you can instead type the port ID number in the
text boxes to the right. You can specify a range using the
From/To fields if you want the rule to apply to a range of port
types, or enter the same port number in both fields.
If you leave the selection set to Any other port, then outbound
data will not be checked for the destination port type.
See step 6 for creating an RDR rule on page 128 for an
explanation of port IDs.
8. Follow steps 8-11 under "The NAPT rule" on page 125 to
submit your changes.