I would like to ping one vmware guest from another one. Both are Windows XP and use NAT. I set IP manually for VMnet8 to 192.168.18.1. (no using Obtain IP address automatically)
I have been able to ping from VMs and the host by setting the VM's network settings to "Bridged" mode. This, in short, places them all on the same physical network. This coupled with your static IP addresses should do the trick.