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I have to set up a wireless router (with openwrt) whose dnsmasq DHCP server is configured to issue addresses on the 10.109.0.0/16 network. Now the challenge is that there are a few machines on the network who are unfortunately statically configured to have IP addresses in 192.168.1.0/24. Is there a way to make those 192.168.1.x machines reachable from machines on the 10.109.x.x network?
Or would that be too much trouble and it would be a much easier solution to try hard and change either the network of the 192.x machines or maybe reconfigure the router to work on the 192 network?
This feature is usually called "Secondary IP address" and relates to the internal (LAN) port. Depending on the router's OS, you might need an additional route and/or policies to allow inter-subnet traffic. Or it just might work immediately. – user1016274 – 2017-08-09T08:13:42.553