Stuck on bridged network between buildings

[AllWiredUp]

I have been attempting to create a bridged network between three buildings as per the attached diagram.

At present each building has its own network with its own internet connection. My intention is to have them all sharing a single internet connection on a single network.

My ideal setup would be to house everything (internet connection etc) in Building 2, but not too sure if this will work, and can live with housing it in Building 1 if need be, as this has line of site to the two other buildings. Buildings 2 and 3 dont have direct line of site to each other.

So I have kind of got it to work, but have had some issues.

I have two long range wireless bridges on buildings 2 and 3, and a long range access point on building 1. Both buildings 2 and 3 can connect to the network in building 1, but I am unable to see the network between 2 and 3.

The router ip address in building 1 is 192.168.0.1 and this is the only one with DHCP activated. The other routers in buildings 2 and 3 are set to 192.168.0.250 and 251 and DCHP is turned off.

What would be the best setup so that I can achieve my objective, assuming it is possible ;-)

Thanks for your help in advance

 

[kevnich2]

If all buildings have the same IP subnet and all using their own router's and all computer's in each building have their default gateway set to the router in each respective building, that will cause issues. You either need to eliminate the router's or change the building's so their all on different IP subnet's and update the router's route's so it sends traffic destined for each different network, to the correct node.

 

[kevnich2]

You need to add more details to your network diagram as far as what router's your using, the IP's of the routers and how their communicating. The simplest solution is to eliminate all but one router and keep everything else on one subnet between all three building's but you need to make sure there's no ip conflicts at any of the hosts in different building's and you'll need to make sure the default gateway in all hosts in the three building's all point to the correct router, wherever it happens to be.

 

[avos]

Does your wireless access point at building 1 support Transparent Bridge? Often called WDS. If not your issue is likely that Wireless devices are having their MAC address rewritten by the AP. This works fine with 1 hop. Not so much with 2 hops.

If it doesn't support Transparent bridge you would be better giving each building its own subnet and routing between them.

Set Router1 LAN at 192.168.0.1
Set Router2 WAN at 192.168.0.250
Set Router2 LAN at 192.168.20.1/24
Set Router3 WAN at 192.168.0.251
Set Router3 LAN at 192.168.30.1/24

On Router1 create routes:
Any to 192.168.20.1/24 gateway 192.168.0.250
Any to 192.168.30.1/24 gateway 192.168.0.251

Make sure firewall rules are created to allow 192.168.20.0/24 and 192.168.30.0/24 to 192.168.0.0/24
As well as firewall rules allowing 192.168.20.0/24 to 192.168.30.0/24 and vice versa.

There are other ways to do this of course, but without knowing more about your networking gear this is the best I could suggest.

 

[AllWiredUp]

Thank you very much for your help. So I ended up running on different subnets following avos's guide and have managed to get it all up and running.

Thanks again! 🙂