# General

Select or clear the **Enable RAS Secure Gateway in Site** option.

* **Host**: Select a different host if needed.
* **Description**: Set or modify an optional description.
* **Public address**: Specify a public address for the Gateway server.

## **Set IP addresses for client connections**

Specify the following IP options:

* **Use IP version:** Select the IP version(s) to use. RAS Secure Gateway recognizes both IPv4 and IPv6. By default, IPv4 is used.
* **IP(s):** Specify one or more IP addresses separated by a semicolon, or click **Resolve** to resolve the IP address automatically. These are the available addresses on the Gateway server. To specify IP addresses that should be used for client connections, use the **Bind to IP** section (see below).
* **Bind to IP:** Use this section to specify on which IP address (or addresses) the Gateway will listen for client connections. You can select a specific address or **All available addresses**, in which case all of the IP addresses specified in the **IP(s)** field will be used.
* **Remove system buffers for:** This option can be used when the connection between the Gateway and the Parallels Client has a high latency (such as the Internet). This option will optimize traffic for better experience on the Parallels Client side. You can select one or more specific addresses, all available addresses, or none. What this option will do is delay the internal socket to match the performance of the external socket. If the internal network is fast and the external is slow, RDP detects the fast internal socket and sends a lot of data. The problem is that this data cannot be sent fast enough from the Gateway to the Client, thus ending up with a bad user experience. Enabling this option will optimize the data exchange.


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