Chapter 8 NAT
Each field is described in the following table.
Table 53 Network > NAT > Trigger Port
LABEL | DESCRIPTION |
Name | Enter a name to identify this rule. You can use 1 - 15 printable ASCII characters, |
| or you can leave this field blank. It does not have to be a unique name. |
|
|
Incoming |
|
|
|
Start Port | Enter the incoming port number or range of port numbers you want to forward to |
End Port | the IP address the ZyXEL Device records. |
| To forward one port number, enter the port number in the Start Port and End Port |
| fields. |
| To forward a range of ports, |
| • enter the port number at the beginning of the range in the Start Port field |
| • enter the port number at the end of the range in the End Port field. |
| If you want to delete this rule, enter zero in the Start Port and End Port fields. |
|
|
Trigger |
|
|
|
Start Port | Enter the outgoing port number or range of port numbers that makes the ZyXEL |
End Port | Device record the source IP address and assign it to the selected incoming port |
| number(s). |
| To select one port number, enter the port number in the Start Port and End Port |
| fields. |
| To select a range of ports, |
| • enter the port number at the beginning of the range in the Start Port field |
| • enter the port number at the end of the range in the End Port field. |
| If you want to delete this rule, enter zero in the Start Port and End Port fields. |
|
|
Apply | Click this to save your changes and to apply them to the ZyXEL Device. |
|
|
Cancel | Click this to discard your changes. |
|
|
Use this screen to enable and disable SIP (VoIP), FTP (file transfer), and H.323
Figure 67 Network > NAT > ALG
Each field is described in the following table.
Table 54 Network > NAT > ALG
LABEL | DESCRIPTION |
Enable SIP ALG | Select this to make sure SIP (VoIP) works correctly with |
| triggering rules. |
|
|
Enable FTP ALG | Select this to make sure FTP (file transfer) works correctly with |
| and |
|
|
| 123 |
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|