So, if your modem is 192.168.0.1, you will need EACH wireless router to have internal IPs different - 192.168.1.x, 192.168.2.x, etc. The ONLY requirement is that the wireless addresses moust be different than your modem's internal IP.
Your wireless routers will do the same thing.
The convert your internet IP into a "internal" ip - .x or 10.x.x.x. Almost all modern modems are wired/wireless routers themselves. Your question sounds more like you have some extra/spare hardware and are wondering what you can do with it. Using two routers can open up some interesting new configurations but its best to know what it is you want to do first then you can configure them to suit the task. However your usage case may differ and you haven't really talked about what it is exactly you want to do. My Internet facing router has been configured to identify the second router and configure it to act essentially as a WiFi mesh device. In my configuration the secondary router has had its WAN function disabled and it acts simply as a WiFi extender for my wi-fi devices. In my home configuration My Fiber router is too far away to service my home completely and so I needed a second device to act as a WI-Fi repeater (I could use a Wi-Fi extender/booster but I had a spare router so I used what was handy). I have two routers that are the same brand but are different models. An Internet facing Router with the second router acting as a repeater or wi-fi extender. You could then independently configure each firewall to improve security with computing devices connected to the first modem receiving the benefit of the firewall available on it, and computing devices connected to router 2 benefiting from heightened security by being behind both router 1 and router 2's firewalls.Ģ. If both routers have firewalls, this type on config can be used to create a cheap version of a network DMZ. Router 1 acquires its configuration from the modem, and Router 2 acquires its configuration from Router 1. This is where you have the WAN port of the first router connected to your Modem, you can then connect the WAN port of the second Router to a LAN port on the first router. An Internet Facing Router and an Internal network facing router. I'll outline two common scenarios for a dual router configuration.ġ. You absolutely can, but a lot depends on how you have your network configured, and the reasoning for doing what you are doing.
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