Zend certified PHP/Magento developer

VM in VMWare Workstation keeps changing IP

I have a proprietary VM that is Linux based. When I deploy it under VMware Workstation, its IP changes once in a while after reboot (always go up by 1). Both this VM and an Ubuntu VM are deployed under the same host machine uses NAT as network config. But the Ubuntu’s VM never changes. I checked the MAC address of my VM and it is the same as the one assigned by VMWare Workstation all along.

I don’t want to modify the configuration of the VM as I want it to obtain its network information via DHCP server of VMware Workstation. Any ideas how to troubleshoot?