WAN boot is the mechanism that boots an Oracle Solaris system from the network. This capability is available in SPARC and x86 UEFI systems.
Use of WAN boot is associated with installing Oracle Solaris, which require more preparations. See Automatically Installing Oracle Solaris 11.4 Systems.
To enable network booting, the following are required:
A configured DHCP server
To service x86 based systems that use Preboot eXecution Environment (PXE) boot, the DHCP server's PXEClient must have the following information:
IP address of the file server
Name of the boot file, which is pxegrub2 for systems with BIOS firmware and grub2netx64.efi for systems with UEFI firmware.
A boot server that provides tftp service
For information about DHCP, see Working With DHCP in Oracle Solaris 11.4.