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I have a problem with routing on my LAN. I understand why it didn't work but I can't see an elegant solution.
In a multi-building site a MikroTik router is taking care of the WAN connection for everybody and connecting different subnetworks with different needs.
One of these subnetworks is spread out over multiple buildings through a WiFi AP connected to the MikroTik router and several client stations, one at each building. All of those WiFi devices work in bridged mode so every user is directly connecting to the MikroTik router.
If we see the network as a flower the base is the MikroTik router, the WiFi AP on the roof the center of the flower, and the petals are the WiFi clients with all the clients behind them.
My problem is that all the clients have no problem connecting to other subnetworks or to the Internet. But they are not able to connect to another client of the same subnetwork but on different "petals".
Should I use different subnetwork for each petal?
- Router 192.168.2.1/24
- AP on roof in bridge mode 192.168.2.101/24
- client on two buildings in bridge mode 192.168.2.102/24 and 192.168.2.122/24
- laptop 192.168.2.116/24 is connected through *.102 while Raspberry 192.168.2.123 is connected through *.122
The laptop could only reach the AP on the roof 2.101 or the router 2.1 and never the other client, for example 2.122 or 2.123
Anselmo Luginbühl
Posted 2015-08-19T21:29:43.913
Reputation: 13
"do not find the way to connect to client of the same subnetwork but on different "petals"". please can you edit and explain that "without a flower" with IPs and subnets, – Narzan Q. – 2015-08-19T21:49:39.493
On mikrotik the relevant interface 192.168.2.1/24 with dhcp enabled for that subnetwork. From that interface we move to the AP in bridge mode on the roof (address *.2.101) then to a couple of wifi client both in bridge mode, say *.2.102 and *.2.122. My laptop (address 192.168.2.116/24) is connected trough the wifi router (configured as client in bridge mode) with ip .102, while the device I would reach is connected trough the wifi router (configured as client in bridge mode) with ip.2.122 and it's ip address is 192.168.2.123/24 – Anselmo Luginbühl – 2015-08-19T21:59:23.280
What about subnet mask? – Narzan Q. – 2015-08-19T22:04:48.757
Same for everybody 255.255.255.0 (/24) – Anselmo Luginbühl – 2015-08-19T22:05:44.220
ok make your DNS on your laptop static, the first DNS X.X the second DNS 2.X, and tell me what the result, you can reach that client "PC" now or not? – Narzan Q. – 2015-08-19T22:15:57.213
I'm on linux and resolv.conf contains:
so that should be right – Anselmo Luginbühl – 2015-08-19T22:19:43.220
I know your microtik make everything, I am troubleshooting your issues, you said your laptop IP 2.X and the bridge X.102 ?! there is two DHCP service here! your mikrotic 2.X the other one from where? to reach different subnet you must have a router between them! – Narzan Q. – 2015-08-19T22:27:00.013
You can use routing or bridging. Either one will work. For routing, they will need to be in different subnetworks. For bridging, you will have to use some bridge-over-WiFi technology, like WDS. – David Schwartz – 2015-08-19T22:32:58.433
No, only one dhcp, every device I talked about is on the same subnetwork and are configured by the same dhcp server. Mikrotik 192.168.2.1 - AP 192.168.2.101 - wifi clients (192.168.2.102 and 192.168.2.122) then the final devices one is 2.116 and the other 2.123 – Anselmo Luginbühl – 2015-08-19T22:36:34.687
The wifi device are all in bridge mode to be "transparent" to the final devices but then the routing isn't working properly between devices connected trough different wifi client bridge. – Anselmo Luginbühl – 2015-08-19T22:40:05.170
Probably I should use different subnet so that routing could be done properly. – Anselmo Luginbühl – 2015-08-19T22:42:07.460