Hello,
for me it looks a bit strange, why not put both interfaces together on Layer 2 - so bridge them together - which is the default anyway? It looks very strange to me, to split that stuff on layer 3 with the same subnet, which now need a lot of hacking to bring it to work again, which i personally would like to avoid in a production environment. For me it looks like a "wrong" approach - what is the special need to doing it in this way? What is the problem with using a bridge over these two interfaces which should just run out of the box?
Regards Tobias

-------- Original Message --------
Subject: [LEDE-DEV] Routing two interfaces on same subnet
From: Baptiste Clenet <bapcle...@gmail.com>
To: lede-dev@lists.infradead.org
Date: 4.7.2016 10:14:26
Hi,

On my board, I've got a wifi and an ethernet interfaces on the same
subnet (192.168.0.0/24). Problem is if ethernet cable is unplugged I
can't use wifi anymore, see

root@eisox:/# ip route
default via 192.168.0.50 dev eth0  proto static
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.85
192.168.0.0/24 dev apcli0  proto kernel  scope link  src 192.168.0.80
Here, ethernet is unplugged and wifi connected to other router so I
can't use the wifi (ping failed in both direction).

If I delete eth route, it works.
root@eisox:/# ip route del 192.168.0.0/24 dev eth0
root@eisox:/# ip route
default via 192.168.0.50 dev eth0  proto static
192.168.0.0/24 dev apcli0  proto kernel  scope link  src 192.168.0.80
root@eisox:/#

How can I can solve the problem?
I won't know the status of Wifi and Ethernet so I would like that both
can work if they are plugged.

Or how to disable one interface is the other one is connected (like if
ethernet is plugged, allow only ethernet to work, if it is unplugged,
allow only wifi)

Cheers,



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