I have one computer that has an address of 192.168.100.105 that I want to access from the 192.168.1.x subnet as 192.168.1.105. I cannot change any computer IP because of licensing issues. So I am forced to try and access this one computer as 192.168.1.105 while leaving its IP @ 192.168.100.105. Any changes to the network on this computer will kill the license, which cost thousands of dollars. I also need to use this computer as a file server to the 192.168.1.x subnet.
I do have an unused interface on the OPNsense box that I can set to 192.168.100.x. I can bridge them but the issue is I need to use 192.168.1.105 on the existing subnet to get to the 192.168.100.105 computer. Maybe NAT them?
What is the best way to do this? If even possible.
What about a second NIC for this host in your 192.168.1.0/24 network? Then you access your files via this interface and the old up is still valid
Virtual IP on the same interface should be enough on network as long as both have OPNsense as default gateway. You will only need a pass rule from one network to the other even if it is on the same interface.
However if it is only a file server there are a lot of good implementations out there. For example:
* samba
* proftpd
* nextcloud
Adding the NIC did something to the license. Even a restore can't get it back now.
Oh well
It is likely bound to some hardware configuration. If you remove the nic from that host and do a restore it may work again.
Please try the solution I provided because it does not need any change to that black box.
If you have a managed switch, you can also use VLANs for separation.
Thanks, but nothing I do retrieves the license. I will contact the vendor Monday and see what they can do.