Configure a router on a subnet with LUCI

Installing and Using OpenWrt
1

I'm sure this should be simple and asked before, but I must be using the wrong search terms.

I have 2 Openwrt routers. Main router connected to WAN is on 192.168.5.x. Second Openwrt router is on 192.168.6.x (which all my IOT things are connected to). I need to pass data between the 2 but cannot see how to set this up with Luci.

Wiring is LAN (main router 5.x) to WAN (IOT router 6.x)

I can connect to the IOT router via the 192.168.5.x IP is is assigned.

2

this is the way

then it's not running with the default config, WAN port is firewalled.

3

Thanks. Sorry, I don't understand the answer - sorry. I can access Luci on the IOT router as I have allowed external access to Luci.

I have a feeling I need a static route from 5.x to 6.x via the static address the IOT router is on. But it doesn't work :frowning:

4

You have to open up the firewall of the IOT router: forward traffic from wan to lan on the iot router.

Or make it more specific for only your main route with these rules:

config rule
	option name 'allow_forward'
	option src 'wan'
	option dest '*'
	option target 'ACCEPT'
	list src_ip '192.168.5.0/24'
	option enabled '1'

config rule
	option name 'allow_input'
	option src 'wan'
	option target 'ACCEPT'
	list src_ip '192.168.5.0/24'
	option enabled '1'

On the main router you have to make a static route like:
ip route add 192.168.6.0/24 via 192.168.5.X #(wan ip address of IOT router)

5

what do you want to achieve ?
allow .5.x network to access the .6.x network ?

is .6.x network to have any restrictions when trying to talk to the .5.x network ?

6

Yes just simply pass all traffic between the 2.

7

I really just want to use the UI.

8

Not sure what you want

9

if there aren't any restrictions, shouldn't the 2nd router be a https://openwrt.org/docs/guide-user/network/wifi/wifiextenders/bridgedap ?

1 Like
10

I want to be able to access 192.168.6.x (IOT device) from a computer on 192.168.5.x (main network)

11

Already gave you the answer to do that basically:
Open up the firewall of the secondary router
Set a static route on the main router

12

I think both of these are on the same subnet though in that guide?

1 Like
13

indeed, but if you have zero traffic restrictions, does it matter ?

14

I can't seem to get that right.

15

Yes too many IPs required :frowning:

16

more than 250 ? really ? :open_mouth:

17

Well it is getting close.

18

Yes that is done

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1 Like
19

should be able to add an additional DHCP pool in dnsmasq, shouldn't you ?

20

Can I just find out how to set the static route, please?