I have a BigFix environment with a Windows BigFix server on the host-only network, and I've got IBM Control Desk installed on a Red Hat VM on one of the NAT networks. I want to integrate the two for asset management, which requires the Integration Composer, which has to communicate with both servers simultaneously. (We've done an air-gapped integration for a couple of customers, but I wanted to use the out-of-the-box mechanism).
Some of the solutions that I considered, but threw out because of the work involved:
Change an IP address
Simply move one server to the other network and then add routes to communicate between different subnets IP addresses on the same network
I added a network card on the NAT network to the BigFix Windows server. VMWare Workstation quickly suspended and resumed the VM, the adapter was seen, and it got a DHCP address on the NAT network. And then I could communicate between the two machines!