Help with Mesh Portal

[Chris Crawford]

Hmm...my ASCII diagram didn't quite make it to everyone the way I hoped it would...

I've attached a PDF of the diagram, to make it easier to read.

--
Chris

On Thu, Apr 23, 2009 at 3:25 PM, Chris Crawford <cpc5 at buffalo.edu> wrote:
> Javier,
>
> Thanks for the reply.
>
> On Wed, Apr 22, 2009 at 11:39 PM, Javier Cardona <javier at cozybit.com> wrote:
>>> I want to set up a mesh portal, but I'm running into a problem.  I have a laptop
>>> with a ethernet port (eth0) and mesh connection and ideally this mesh portal
>>> would bridge the two. I have followed the directions at
>>> http://www.open80211s.org/trac/wiki/HOWTO#MeshPortalMPP
>>>
>>> Only the mesh or the wired connection will work after I bring up the bridge, but
>>> never both.
>>
>> Can you be more specific about the meaning of "will work" in this
>> context?  What failures did you encounter?
>
> Sorry, that wasn't very clear (and maybe not entirely accurate).
>
> Ideally, I'd like the following setup:
>
> +-------------+
> |             |
> |     INET    |
> |             |
> +-------------+
>       ^
>      | |
>       v
> +-------------+
> |             |
> | 192.168.1.1 |
> |   gateway   |
> |             |
> +-------------+
>       ^
>      | |
>       v
> +-------------+ ==================
> |   (eth0)    |
> |192.168.1.20 |
> |     ^       |
> |    | |      |
> |     v       |
> |   (br0)     |
> |192.168.2.20 |  <= MPP
> |     ^       |
> |    | |      |
> |     v       |
> |192.168.2.20 |
> |   (wlan0)   |
> +-------------+
>
> +-------------+        M
> |             |
> |192.168.2.30 |        e
> |   (wlan0)   |
> +-------------+        s
>
> +-------------+        h
> |             |
> |192.168.2.40 |
> |   (wlan0)   |
> +-------------+
>
> +-------------+
> |             |
> |192.168.2.50 |
> |   (wlan0)   |
> +-------------+  ==================
>
> I can get the mesh set up fine and each node in the mesh can ping the other.
>
> 192.168.2.20 can ping any other mesh node and any other mesh node can ping
> 192.168.2.20.
>
> 192.168.1.20 can also ping 192.168.1.1.
>
> After I follow the directions to set up an MPP, 192.168.2.20 can't ping anything
> and nodes in the mesh cannot ping 192.168.2.20.
> In both cases, ping reports that the destination is unreachable.
>
>> Perhaps the HOWTO could be clearer regarding what you can do with the
>> current implementation:  it can only be used to connect a number of
>> 802.3 subnets via a mesh network.  There needs to be a mesh portal set
>> up for each subnet that you want to connect.  Once you set up the mesh
>> portals, the subnets will be connected at layer 2.
>
> Ah, pings are at layer 3.  Is that why they're failing?
>
> If that's the case, how can I test if my connections are working at layer 2?
>
>> What you won't be
>> able to do is to connect from an internal mesh node to nodes in the
>> external subnets.  Is that what you are trying?
> Ultimately, I would like to do that, yes.
>
> What can you do with a mesh portal if it doesn't allow internal nodes to
connect out?
>
> Thanks,
>
> Chris
> _______________________________________________
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> Devel at lists.open80211s.org
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>

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