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This article mainly introduces how to use simnet_nat in vxworks, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Vx6.9 's Simulator provides two ways to support Network. The full-featured method is called simnet, which requires the installation of a virtual network card on the host side; another simnet_nat is much simpler and does not require any adjustment to Host, but only supports TCP and UDP protocols, and cannot use the network features of other protocols, such as ping operation. Today let's see how to use this kind of simnet_nat without making any changes to VIP, just specify network option when you start Simulator using Target Connection (default is)

The Simulator launched in this way will contain a network card device called "simnet_nat0" with an ip of 10.0.20.2

Target Connection maps the port of Host to this Target, which is where the name nat comes from, N etwork A ddress T ranslation. This mapping table is also specified when network option is specified, and if used, Connection automatically allocates port. Then when Simulator starts, the specific mapping value will be printed in Console.

Finally, you can communicate with Target by using IP and port of Host.

It's just that port assigns a different value each time it starts, so the commonly used port can be fixed in the Connection attribute.

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