Siemens SCALANCE X-300 Configuration Manual page 264

Configuration using Web Based Management and Command Line Interface
4.5 The Switch menu
NAT configuration
Note
The NAT function uses a lot of computing capacity. If you want to use the switch as a NAT
device, you should therefore disable as many of the other functions and protocols (RSTP,
HRP/MRP, PTP, etc.) as possible. This results in a higher data throughput for the NAT
packets.
Click on the "NAT" folder in the menu tree to go to the "Network Address Translation"
window. This window shows the current NAT settings.
Figure 4-115 Network Address Translation
NAT enabled
Enable or disable the NAT function by clicking the check box.
NAT VLAN ID:
In the input box, enter the ID of a configured virtual LAN for the global network attachment.
Global IP Address:
In the input box, enter the global IP address for the dynamic address translation.
Global Subnet Mask:
Enter the global subnet mask in the input box.
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Configuration Manual, 10/2014, C79000-G8976-C187-22
SCALANCE X-300 / X-400