# Gateway network options

The **Network** tab is used to configure RAS Secure Gateway network options.

## **Using Site defaults**

To use Site default settings, click the **Inherit default settings** option. To specify your own settings, clear the option. For more info, see [**Site Defaults (Gateways)**](/landing/ras-admin-guide/parallels-ras-21-administrators-guide/ras-secure-gateway/configuring-a-ras-secure-gateway/site-defaults-secure-gateways.md).

## **Configuring network**

By default RAS Secure Gateway listens on TCP ports 80 and 443 to tunnel all Parallels RAS traffic. To change the port, specify a new port in the **RAS Secure Gateway Port** input field.

RDP port 3389 is used for clients that require basic load balanced desktop sessions. Connections on this port do not support published resources. To change the RDP port on a gateway select the **RDP Port** option and specify a new port. When setting your own port, please make sure that the port number does not conflict with the standard "RD Session Host Port" setting.

{% hint style="info" %}
**Note:** If RDP port is changed, the users need to append the port number to their connection string in the remote desktop client (e.g. \[ip address]:\[port]).
{% endhint %}

**Broadcast RAS Secure Gateway Address.** This option can be used to switch on the broadcasting of the Secure Gateway address, so Parallels Clients can automatically find their primary Secure Gateway. The option is enabled by default.

**Enable RDP UDP Data Tunneling**. To enable UDP tunneling on Windows devices, select this option (default). To disable UDP tunneling, clear the option.

**Device Manager Port**. Select this option to enable management of Windows devices from the **Device Manager** category. The option is enabled by default.

**Enable RDP DOS Attack Filter.** When selected, this option denies chains of uncompleted sessions from the same IP address. For example, if a Parallels Client initiates multiple successive sessions with each session waiting for the user to provide credentials, Parallels RAS will deny further attempts. The option is enabled by default.


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