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You can configure the DHCP server to support IPv4 clients that use BOOTP (b Anchorbookmark2257bookmark2257ootstrap bootstrap protocol) or that include the TFTP server name option and boot file name option in their DHCPREQUEST messages. You can specify the name or IP address of the boot server and the name of the file the host needs to boot.
In addition, you can configure the DHCP server to support hosts that use PXE (Preboot Execution Environment) to boot remotely from a server. When such a host starts up, it first requests an IP address so it can connect to a server on the network and download the file it needs to boot. After it downloads the file, the host reboots and sends another IP address request. To better manage your IP resources, set a different lease time for PXE boot requests. You can configure the DHCP server to allocate an IP address with a shorter lease time to hosts that send PXE boot requests, so IP addresses are not leased longer than necessary.

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Note
titleNote

Enter values in both the Next Server and Boot Server fields if some hosts on your network require the boot server name and others require the boot server IP address.

         3. Save the configuration and click Restart if it appears at the top of the screen.

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