When deploying the appliance with VLAN, the GI configtools fail to run.
Hardware Models
Oracle Database Appliance X7-2S, X7-2M, and X7-2-HA
Oracle Database Appliance X6-2S, X6-2M, and X6-2L
Workaround
Run cleanup. If the system is X7-2-HA, run the cleanup on both nodes. The script will reboot the nodes.
#/opt/oracle/oak/onecmd/cleanup.pl
Create (deploy) the appliance without the DNS server.