I'm trying to get a network setup with three routers, and three DHCP servers. Sounds silly, but if I can get it to work, I can eliminate a lot of re-wiring, etc in the building.

I have a modem/router A with an active DHCP server ip I have a router B with ip address and a dhcp server distributing I have a router C with ip address and a dhcp server distributing (So B is connected to A, and C is connected to A)

I don't mind having the networks on Router B and C separate (C is in the office, so it's actually kind of nice being on a different network) but the printer is on B, and it would be nice to be able to print to it from a device on A. Basically, I want the router to communicate with the router.

The only reason I haven't set them both up as access points is because on B, I have a Raspberry Pi on a TV which needs a reserved address to be able to use the XBMC remote for it, which Modem/Router A cannot do.

Both B and C need to be connected to A (for internet), and wiring B to C is not possible (they're on two opposite sides of a building with no clear way to wire it without ripping up walls).

I've been playing with static routes, but I'm failing miserably. Is that even the way to go?

1 Answer 1


This is a tough one. Because you use individual address ranges behind routers, each zone becomes a private network where all internal devices are only visible to eachother.

A printer in group B will therefor only be visible and approachable to other devices in group B.

In your situation I would make Router A be the main router for the entire network, issuing DHCP for all devices, and configure Router B and Router C to be bridges/routers. If you have a spare lan port on the routers and you don't want to have any configure issues, just move the cable from the WAN to one of the LAN ports on routers B and C.

As a result, all devices will see eachother in all 3 groups. You can still leave group C unchanged to shield it off the rest, but those people will not be able to print to the printer.

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