At work we have 5 engineers that all have the same test bench setup in their area. Each test bench has 10 modules, each of which have an ip address "burned/assigned in firmware by the manufacture. Each model of module all have the same IP and can not be changed. So only one engineer at a time can have their test bench connected to the network at a time or else they all interfere/control each others test bench. There is one Ethernet jack (from company network) in each area for their laptop (the laptop gets an IP via DHCP). The laptop needs to connect to the test bench and the rest of the company network for internet, servers, printers, email, etc. The test bench only needs to have communication to the laptop. Currently they unplug the laptop from the company network and plug it into a switch on the test bench but have to go back and forth when they need to access documentation and internet. They have tired adding a USB NIC to the laptop and the software for the modules doesnt ever work with 2 NICs (it looks for the modules out the wrong NIC due to the addressing scheme). I have purchased a Cisco 1811 Router/Switch combo for the solution. Should cover the task and be budget friendly. I have a block of static IP's set aside for this. I have thought of a half a dozen different ways to try this. I am perhaps overthinking the configuration on the 1811 for this so i am asking for help. The IP address of the modules are 192.168.81.6, 7,8,9,20,56,60,61,76,86. Our company network uses the 192.168.80 and 192.168.81.
Thank you for your help in advance, I appreciate your time.