By default vMotion is not enabled on VMWare ESXi Host. Below shown steps will enable vMotion capability to your VMWare Virtual Host.

1. Connect to your ESXi host using vSphere client.
2. Go to Configuration page and select Networking.
3. Click Properties for the virtual switch where a VMkernel port has been configured.
4. Select Management Network from Ports.
5. Select Edit and enable vMotion in General tab.

Enable vMotion