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Trying to connect two routers (lemmy.world)
submitted 2 years ago by [email protected] to c/[email protected]
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Hi all!

I have 2 ISPs with their own routers.

Router A: 192.168.0.1/24

Router B: 192.168.20.1/24

I have my servers plugged into Router A and all my endpoint and users' devices connected to Router B.

I want users connected to Router B (192.168.20.1/24) to have access to server 192.168.0.90

I thought plugging a LAN cable and connecting Router A and Router B and then defining static routes in both routers would solve the issue.

However, at the first step itself I have an issue. When connecting the routers via a LAN cable, both routers dont get any IP.

I was also referring to this post on superuser. Though Router B is capable of creating subnet and static route, I am not sure if Router A (Archer XR500v) is capable of creating a subnet and/or a static route.

https://superuser.com/questions/1667068/connect-two-routers-with-different-subnet

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[-] [email protected] 5 points 2 years ago* (last edited 2 years ago)

You have two DHCP servers but can't set a separate IP on one of the interfaces as far as your information goes. You didn't provide the second router model.

That means I would disable the DHCP server on router B and set its IP to a static one in the router A's subnet. This means that you can hand out the gateway A from A via DHCP to clients and have the server set to a static IP with B as a gateway.

This all depends on the configuration options though. If you can set an IP or DHCP client per interface, you could also just do that.

this post was submitted on 10 Dec 2023
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