[Olsr-users] Testing DLEP plugin without WiFi

Tue Aug 30 08:04:05 CEST 2016

No. Therein lies the problem. When I query with layer2info on the radio
side, a segmentation fault occurs within the program, and the program
exits. The router executable continues to run but reports the error i
stated above.

14:25:12.946 WARN(stream_socket) src-plugins/subsystems/oonf_stream_socket.c
812: Error while writing to communication stream with
fe80::a2ce:c8ff:fe07:d669: Broken pipe (32)

I am thinking that maybe my configuration file is wrong? It seems that
there may be some problem in communicating across the mesh point I set up.

Regards,

Anderson Huang

On Mon, Aug 29, 2016 at 10:28 PM, Henning Rogge <(spam-protected)> wrote:

> Hi,
>
> but you get layer2info data on the radio, right? especially for
> "layer2info neighbors".
>
> Henning
>
>
> On Mon, Aug 29, 2016 at 9:24 PM, Anderson Huang <
> (spam-protected)> wrote:
>
>> Hi,
>>
>> I am not using OpenWRT, but I executed the commands that I found relevant
>> under this section. They make no difference. layer2info still does not
>> output anything in the telnet interface.
>>
>> Regards,
>>
>> Anderson Huang
>>
>> On Sun, Aug 28, 2016 at 4:28 AM, Henning Rogge <(spam-protected)> wrote:
>>
>>> Hi,
>>>
>>> did you use the iptables/ebtables settings proposed on the olsr.org
>>> webpage (or something equivalent)?
>>>
>>> http://www.olsr.org/mediawiki/index.php/DLEP#DLEP-radio_on_a
>>> n_embedded_router_with_OpenWRT
>>>
>>> Henning
>>>
>>> On Thu, Aug 25, 2016 at 11:55 PM, Anderson Huang <
>>> (spam-protected)> wrote:
>>>
>>>> Hi everyone,
>>>>
>>>> If you could, disregard the last email I sent as I have made some
>>>> progress in establishing a working mesh network with dlep capabilities. I
>>>> feel like I am very close, and am just missing a very small detail. Below
>>>> is a summary of my setup and the error I run into.
>>>>
>>>> Router 1 --(ethernet adapter)-- Radio 1 ---- (802.11s mesh network)
>>>> ---- Radio 2 ----(ethernet adapter) ---- Router 2
>>>>
>>>> Each of these nodes is running Linux, but not all versions of OONF are
>>>> the same on each (if this is the problem, I can easily fix this). I have
>>>> created a mesh network using open80211s tutorials. Radios 1 and 2 can
>>>> successfully see each other through the mesh network.
>>>>
>>>> Next, I have bridged the ethernet interface on each radio with the mesh
>>>> point interface. Let's call the mesh interface mesh0 and the bridge br0. My
>>>> configuration files, then, for the router looks like so.
>>>>
>>>> [dlep_router=<ethernet enterface>]
>>>>
>>>> and for the radio
>>>>
>>>> [dlep_radio=mesh0]
>>>>     datapath_if    br0(also tried using <ethernet interface>)
>>>>
>>>> In the terminal, I run on the router side,
>>>>
>>>> ./olsrd2_dlep_static <ethernet interface> lo --load=router.cfg
>>>>
>>>> and on the radio side,
>>>>
>>>> ./dlep_radio_static --load=radio.cfg
>>>>
>>>> Routers 1 and 2 are able to see each other across the mesh network,
>>>> through routing tables using route -n. When I use br0 as the item to feed
>>>> into datapath_if, the telnet interface gives me nothing when I query with
>>>> the layer2info commands. In fact, when I try to do this on the router side,
>>>> an unusual error pops up on the radio side, specifically of the kind as
>>>> shown below. However, the correct neighbor shows up (e.g. the correct
>>>> router on the other side of the mesh network).
>>>>
>>>> 14:25:12.946 WARN(stream_socket) src-plugins/subsystems/oonf_stream_socket.c
>>>> 812: Error while writing to communication stream with
>>>> fe80::a2ce:c8ff:fe07:d669: Broken pipe (32)
>>>>
>>>> When I use an ethernet interface as the argument to datapath_if, the
>>>> telnet interface gives me no response when I query with layer2info
>>>> commands.
>>>>
>>>> Let me know if there is any fix. Thank you for your help.
>>>>
>>>> On Wed, Aug 24, 2016 at 3:01 PM, Anderson Huang <
>>>> (spam-protected)> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> So I am testing your plugins, specifically layer2, layer2info, and
>>>>> layer2_config. I am secondly confused on what the result of running such
>>>>> plugins should do - should I see test data in the OONF telnet plugin? May i
>>>>> have some clarification on which executable I should be running this plugin
>>>>> on top of (./olsrd2_dlep_static or ./dlep_radio_static)? For reference, my
>>>>> setup still looks as such (you can disregard the wifi).
>>>>>
>>>>> Router 1 --(ethernet adapter)-- Radio 1 ---- (wifi & ethernet adapter)
>>>>> ---- Radio 2 ----(ethernet adapter) ---- Router 2
>>>>>
>>>>> The problem is that I cannot seem to achieve Router 1 *to see *Router
>>>>> 2 through the telnet interface. Through bridging ethernet interfaces, I am
>>>>> able to see the logical IP addresses I assign through the end nodes'
>>>>> routing tables, but I do not think this is what I wanted.
>>>>> 802.11s is not supported on all my nodes unfortunately. If anyone has
>>>>> successfully created a mesh network with Linksys WRT54GL routers, I would
>>>>> appreciate any help with that as well.
>>>>>
>>>>> Anderson Huang
>>>>>
>>>>>
>>>>> On Wed, Aug 24, 2016 at 1:24 AM, Anderson Huang <
>>>>> (spam-protected)> wrote:
>>>>>
>>>>>> I am using a normal PC. I am able to compile and generate all
>>>>>> executables as you have stated; however, the problem occurs because i am
>>>>>> unable to follow through on the 802.11s mesh set-up (only one of my nodes
>>>>>> has the network card capabilities to do this). Therefore, I was resorted to
>>>>>> using OpenWRT to alleviate this problem. However, I bricked one of my
>>>>>> routers today trying... I will most likely stick with a normal PC, but it
>>>>>> seems like I will not be able to test the capabilities of the dlep_radio
>>>>>> plugin using normal bridging. I will try using the layer 2 generator plugin
>>>>>> and the layer 2 config plugins and report back to you on those results.
>>>>>> Thank you for your help, and I will keep you updated.
>>>>>>
>>>>>>
>>>>>> On Tue, Aug 23, 2016 at 11:01 PM, Henning Rogge <(spam-protected)>
>>>>>> wrote:
>>>>>>
>>>>>>> On Tue, Aug 23, 2016 at 11:13 PM, Anderson Huang <
>>>>>>> (spam-protected)> wrote:
>>>>>>>
>>>>>>>> I am unsure how to run the binaries with the layer-2 generator
>>>>>>>> plugin, however. I try to run it with the --plugin= option to no avail.
>>>>>>>>
>>>>>>>
>>>>>>> You could add the plugin name to the OpenWRT build file...
>>>>>>>
>>>>>>> yes, I know its not perfect but the build system of OpenWRT is a
>>>>>>> headache... so I only have a list of "usual plugins" to be optionally added
>>>>>>> to OpenWRT by default.
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> I am trying to experiment with OpenWRT now and am confused as to
>>>>>>>> how OONF ties in. Am I correct in assuming that the OpenWRT must be running
>>>>>>>> on a PC, not per se a Linksys WRT54GL router?
>>>>>>>>
>>>>>>>
>>>>>>> OONF = Olsr.org Network Framework.
>>>>>>>
>>>>>>> Both my Olsrd2 and DLEP implementation are part of OONF.
>>>>>>>
>>>>>>> If you are using a normal PC, just forget about OpenWRT and compile
>>>>>>> the executables yourself, you will find a description how to do this in the
>>>>>>> wiki.
>>>>>>>
>>>>>>> Henning
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>> --
>>>> Olsr-users mailing list
>>>> (spam-protected)
>>>> https://lists.olsr.org/mailman/listinfo/olsr-users
>>>>
>>>
>>>
>>
>
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