[LEDE-DEV] Routing two interfaces on same subnet

Tue Jul 12 01:12:36 PDT 2016

Ok thanks Tobias.
How can I detect that ethernet is plugged with hotplug? I tried some
script but it never raises.
Thing is I will know when wifi is up, ok but I have to know if eth is
plugged or not since there is no eth down when eth is unplugged.

2016-07-07 0:30 GMT+02:00 Tobias Welz <tw at wiznet.eu>:
> Hum, now you want to toggle wifi - this is a totally different request. This
> can maybe done by hotplug events on the ethernet executing "wifi up" and
> "wifi down"
> You could also have a look if there is some package that might support
> something like that - i don't know if e.g. mwan3 package can do that.
>
>
> -------- Original Message --------
> Subject: Re: [LEDE-DEV] Routing two interfaces on same subnet
> From: Baptiste Clenet <bapclenet at gmail.com>
> To: Tobias Welz <tw at wiznet.eu>
> Cc: lede-dev at lists.infradead.org
> Date: 6.7.2016 11:19:44
>>
>> Thing is I don't want to relay traffic from ethernet to wifi STA, I
>> want that if ethernet is connected, wifi is disabled and if ethernet
>> is unplugged, wifi is enabled.
>>
>> 2016-07-06 9:05 GMT+02:00 Baptiste Clenet <bapclenet at gmail.com>:
>>>
>>> Ok Thanks Tobias,
>>> I will try to implement it.
>>> So if user plugged ethernet to the internet provider router and wifi
>>> is also connected, they will be no problem?
>>>
>>> 2016-07-06 2:16 GMT+02:00 Tobias Welz <tw at wiznet.eu>:
>>>>
>>>> Bridging in client mode is not supported by most devices.
>>>> That's why you need a "pseudo bridge" with relayd here:
>>>> https://wiki.openwrt.org/doc/recipes/relayclient
>>>>
>>>>
>>>> On 05.07.2016 23:14, Baptiste Clenet wrote:
>>>>>
>>>>> Ok.
>>>>> I've got a router with one ethernet port and wifi in STA mode. The
>>>>> user which is going to use the router will be able to connect this
>>>>> router to internet router either by ethernet or wifi.
>>>>> So if he plugs ethernet and decide to connect his router by wifi also,
>>>>> ethernet and wifi will be on same network (same subnet).
>>>>> Is it clearer?
>>>>> Currently, when I start my board, I've got this config even if
>>>>> ethernet is unplugged (wifi STA connects automatically):
>>>>> root at 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
>>>>>
>>>>> Then I can't ping my router because of the route on eth0
>>>>> May I use a bridge in this set up?
>>>>>
>>>>>
>>>>> 2016-07-05 20:26 GMT+02:00 Tobias Welz <tw at wiznet.eu>:
>>>>>>
>>>>>> I think we need to know more about your setup, and what you want to
>>>>>> achieve.
>>>>>> Let's say we have LAN and WAN interfaces as ethernet ports, and also
>>>>>> WIFI.
>>>>>>
>>>>>> Should the WIFI be in AP or in STA mode?
>>>>>> Shall wifi be bridged to LAN or to the WAN interface?
>>>>>>
>>>>>>
>>>>>> -------- Original Message --------
>>>>>> Subject: Re: [LEDE-DEV] Routing two interfaces on same subnet
>>>>>> From: Baptiste Clenet <bapclenet at gmail.com>
>>>>>> To: Tobias Welz <tw at wiznet.eu>
>>>>>> Cc: lede-dev at lists.infradead.org
>>>>>> Date: 5.7.2016 19:33:02
>>>>>>>
>>>>>>> Wifi and ethernet are in client mode.
>>>>>>> pseudo bridge with relayd? Can you describe a bit?
>>>>>>>
>>>>>>> 2016-07-05 19:24 GMT+02:00 Tobias Welz <tw at wiznet.eu>:
>>>>>>>>
>>>>>>>> Hi,
>>>>>>>> it's just a little problem if you are in in client mode, then you
>>>>>>>> need
>>>>>>>> a
>>>>>>>> pseudo bridge with relayd.
>>>>>>>> If you use AP mode then you can just bridge LAN and WIFI together,
>>>>>>>> which
>>>>>>>> is
>>>>>>>> the default anyway. A factory default will bring you to this
>>>>>>>> setting,
>>>>>>>> turn
>>>>>>>> on wifi and you are done.
>>>>>>>> Regards Tobias
>>>>>>>>
>>>>>>>> -------- Original Message --------
>>>>>>>> Subject: Re: [LEDE-DEV] Routing two interfaces on same subnet
>>>>>>>> From: Baptiste Clenet <bapclenet at gmail.com>
>>>>>>>> To: Tobias Welz <tw at wiznet.eu>
>>>>>>>> Cc: lede-dev at lists.infradead.org
>>>>>>>> Date: 5.7.2016 19:15:42
>>>>>>>>>
>>>>>>>>> Hi Tobias,
>>>>>>>>> I see, I tried to bridge them, but I got a problem, I'll try again.
>>>>>>>>> Isn't it a problem if both interfaces are connected to same network
>>>>>>>>> in
>>>>>>>>> a
>>>>>>>>> bridge?
>>>>>>>>>
>>>>>>>>> 2016-07-05 19:04 GMT+02:00 Tobias Welz <tw at wiznet.eu>:
>>>>>>>>>>
>>>>>>>>>> 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 <bapclenet at gmail.com>
>>>>>>>>>> To: lede-dev at 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 at 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 at eisox:/# ip route del 192.168.0.0/24 dev eth0
>>>>>>>>>>> root at 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 at 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,
>>>>>>>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Lede-dev mailing list
>>>> Lede-dev at lists.infradead.org
>>>> http://lists.infradead.org/mailman/listinfo/lede-dev
>>>
>>>
>>>
>>> --
>>> Baptiste
>>
>>
>>
>

-- 
Baptiste