ifopen [<interface>] [<interface>...]
Open the specified network interfaces. If no network interfaces are explicitly specified, iPXE will open all available network interfaces.
|Success||The network interface(s) were successfully opened|
|Failure||The network interface(s) could not be opened|
If you have multiple network interfaces, iPXE may not have enough memory available to open them simultaneously. You may wish to execute
ifclose to close any other open network interfaces before executing