Enabling or disabling discovery of the Shell auto-start script using DHCP

Use the Discover Shell Auto-Start using DHCP option to let the Shell discover the startup script URL using DHCP. When enabled, the Shell sends DHCP requests with the DHCP User Class option set to the string UEFIShell.
Prerequisites
  • Embedded UEFI Shell is enabled.
  • UEFI Shell Script Auto-Start is enabled.

  • HTTP Support policy is enabled, and the URL provided by the DHCP server matches the HTTP Support policy setting.

  • Shell Auto-Start Script Location is set to Network Location or Auto.

  • The DHCP server is configured to provide HTTP/HTTPS or FTP URLs.

  • The DHCP server is configured to respond to the User Class option set to UEFIShell. When using DHCP over IPv4, the User Class option is Option 77, and Option 15 when using DHCP over IPv6.

Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Embedded UEFI Shell > Discover Shell Auto-Start using DHCP.
  2. Select a setting.

    • Enabled—The Shell uses DHCP to discover the startup script URL.

    • Disabled—The Shell does not send DHCP requests to discover the startup script URL.

  3. Save your setting.