[Olsr-users] Testing DLEP plugin without WiFi

[Anderson Huang]

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
>>>
>>
>>
>
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