Hi,
I am writing in regards to this article regarding relayd:
[OpenWrt Wiki] Wi-Fi extender / repeater / bridge configuration
Just a little bit of background, network engineer working on various equipment routing, gateways etc.
Currently, I have encountered a router with relayd mechanism implemented and I did find some strange behaviour, I would like to know whenever it should work as I will describe or it is a bug.
Imagine the following setup:
- Access point providing Wifi access, LAN Ip: 10.21.240.20/17(the access point itself gets internet connectivity from a cellular connection just for the reference, not important)
- Router connects to the AP as a client, its WAN ip is being statically assigned to 10.21.240.107/17
- DHCP Server disabled on the Router, relayd enabled
- A Laptop(lpc) is being connected via Ethernet(to the routers LAN port) and is being assigned an ip from the network 10.21.128.0/17 (this is the network of the access point (10.21.240.20/17)) . Laptop ip: 10.21.128.190/17
Relayd works fine and It is possible to ping(or access in other way) the access point. In other words, from 10.21.128.190/17 it is possible to reach 10.21.240.20/17 and vica verca. Also connecting an ip camera to the router and assigning an ip of 10.21.240.100/17 allows the same communication.(Both ways)
So from this I assume the relay d is working properly, the laptop connected to routers LAN is being assigned an ip from the access points LAN network, to which the router is connected.
However, my question is is it normal that from the Laptop 10.21.128.190/17 I am unable to ping the routers WAN interface 10.21.240.107/17. Destination host unreachable, from 10.21.128.190/17. In other words, the laptop, router and the access point are all in the same network 10.21.128.0/17, however, from the pc I am unable to reach the router via its wan interface. But communication to the AP works with no problem. Is this normal? I might not fully grasp on how relayd works. What I have noticed is that the packets are being routed via the LAN interface from the Laptop and that is probably why it is unable to reach the WAN of the router.
This is a specific use case and ip addresses are from a real life network currently in use, however, if my explanation is not clear enough I will rephrase the question:
[OpenWrt Wiki] Wi-Fi extender / repeater / bridge configuration
By default, should it be possible from client Host 1 top reach W-LAN(Client). From 192.168.1.20 to reach 192.168.1.30 according to the article provided. Many thanks