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= 1-to-1 NAT Configuration for RUTX Devices =
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= Introduction =
 
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== Introduction ==
   
1-to-1 NAT is a mode of NAT which maps one external address to one internal address. This article contains step-by-step instructions on how to configure a 1-to-1 NAT between a LAN device and a WAN interface on RUTX devices. This setup can be useful for applications such as exposing email servers to the internet, while preserving private communication in the LAN network.
 
1-to-1 NAT is a mode of NAT which maps one external address to one internal address. This article contains step-by-step instructions on how to configure a 1-to-1 NAT between a LAN device and a WAN interface on RUTX devices. This setup can be useful for applications such as exposing email servers to the internet, while preserving private communication in the LAN network.