Why does Red Hat Enterprise Linux 8 anaconda no longer accept traditional "ip=IP netmask=NM gateway=GW" values on command line?

Issue

• Why does Red Hat Enterprise Linux 8 anaconda no longer accept traditional ip=IP netmask=NM gateway=GW values on command line?
• The command line for anaconda installer is as follows.

bootdev=ens3 ip=192.168.0.100 netmask=255.255.255.0 gateway=192.168.0.1 nameserver=192.168.0.1 

• This fails with the error below.

         Starting dracut cmdline hook...
[    4.880099] BIOS EDD facility v0.16 2004-Jun-25, 1 devices found
[    5.061919] Loading iSCSI transport class v2.0-870.
[    5.070775] iscsi: registered transport (tcp)
[    5.090669] iscsi: registered transport (qla4xxx)
[    5.091850] QLogic iSCSI HBA Driver
[    5.098380] libcxgbi:libcxgbi_init_module: Chelsio iSCSI driver library libcxgbi v0.9.1-ko (Apr. 2015)
[    5.128213] Chelsio T4-T6 iSCSI Driver cxgb4i v0.9.5-ko (Apr. 2015)
[    5.130623] iscsi: registered transport (cxgb4i)
[    5.139107] cnic: QLogic cnicDriver v2.5.22 (July 20, 2015)
[    5.144353] QLogic NetXtreme II iSCSI Driver bnx2i v2.7.10.1 (Jul 16, 2014)
[    5.145716] iscsi: registered transport (bnx2i)
[    5.153967] iscsi: registered transport (be2iscsi)
[    5.154862] In beiscsi_module_init, tt=(____ptrval____)
[    5.185994] dracut: FATAL: For argument 'ip=192.168.0.100'\nSorry, unknown value '192.168.0.100'
[    5.187585] dracut: Refusing to continue
[    5.205485] systemd-shutdow: 13 output lines suppressed due to ratelimiting
[    5.212752] systemd-shutdown[1]: Syncing filesystems and block devices.
[    5.214919] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[    5.217778] systemd-journald[207]: Received SIGTERM from PID 1 (systemd-shutdow).
[    5.220570] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[    5.223663] systemd-shutdown[1]: Unmounting file systems.
[    5.225855] [468]: Remounting '/' read-only in with options 'size=471072k,nr_inodes=117768'.
[    5.228589] systemd-shutdown[1]: All filesystems unmounted.
[    5.230066] systemd-shutdown[1]: Deactivating swaps.
[    5.231390] systemd-shutdown[1]: All swaps deactivated.
[    5.232730] systemd-shutdown[1]: Detaching loop devices.
[    5.234189] systemd-shutdown[1]: All loop devices detached.
[    5.235568] systemd-shutdown[1]: Detaching DM devices.
[    5.258022] reboot: System halted