> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/ras-best-practices-guide/active-directory-and-infrastructure-services-considerations/dhcp.md).

# DHCP

Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.

Parallels recommends the use of static or DHCP reserved IP addressing for Parallels RAS infrastructure servers.

With regards to VDI, to create a RAS template from an existing host, the guest operating system (Windows) must be configured to obtain an IP address via the DHCP server. With regards to a Provider Agent on hypervisors it is recommended to take note of the MAC address assigned to the appliance and add a DHCP reservation. If DHCP isn't available, a static IP address needs to be configured manually.

For Wyse clients, RAS Secure Gateway can act as a Wyse broker. Please ensure that DHCP option 188 on your DHCP server is set to the IP Address of this Gateway for thin clients that are going to boot via this gateway.

{% hint style="info" %}
**Note:** Parallels RAS should not to be installed on a domain controller or any other server where a DHCP server is running.
{% endhint %}


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