Siemens SCALANCE W786-xPRO Operating Instructions Manual page 148

Configuration / project engineering
5.6 Configuration with Web Based Management
NAT properties of the SCALANCE devices
When using the following WLAN clients as a NAT gateway, the WLAN clients must be
connected with the local Ethernet devices over the Ethernet port:
● SCALANCE W746-1PRO
● SCALANCE W746-1
● SCALANCE W747-1RR
● SCALANCE W747-1
● W78x (in client mode)
The local IP address of the WLAN client on the Ethernet devices must be entered as the
gateway address.
The address assignment differs depending on the communication direction:
● From Ethernet device to access point: "Dynamic" address assignment (NAT)
● From Access point to Ethernet device: "Static" address assignment (NAPT)
32 entries can be set as NAT gateways per WLAN client.
Configuration
Set the configuration on the IP Network Address Translation page with the following settings:
● Enable NAT
● Local IP
● Subnet Mask
● Del
● Sel
● Type
● Global Port
Note
If the port is already occupied by a local service (for example Telnet), a warning is
displayed. In this case, avoid using port 23 (Telnet), port 22 (SSH) and ports 80/443
(http/https: availability of the client with the WBM) as global port.
● Local Address
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The continuous address assignment is made automatically.
The address assignment is fixed and must be set as a parameter.
Click the "Enable" check box if you want to enable NAT.
Caution: The change is adopted only after a restart!
Here, you enter the local IP address for the Ethernet port of the WLAN client.
Enter a subnet mask for the local Ethernet network here, if applicable.
Select the "Delete" check box if you want to delete the previous entries on this page.
Select the "Select" check box if you want to enable the current entries.
Here, you select the assignment TCP or UDP for the following global port. Parameters for
TCP and UDP frames are set separately.
Enter the number of the global port (for TCP or UDP).
Here, you enter the local address of the Ethernet device.
Operating Instructions, Release 08/2007, C79000-G8976-C221-02
SCALANCE W786-xPRO