<div dir="ltr"><div><div><div><div><div><div>Hi Henning,<br><br></div>Thank you for your response.<br><br></div>I am trying to let each RPi see the other in the network and communicate with each other.<br>The situation right now is that both Raspberry PI's have similar connectivity, having:<br>
</div>ESSID, Channel 11 (2.457GHz), Ad-Hoc mode.<br></div><div>Each configured to a static IP in the same subnet. <br><br></div><div>I can see the other node via <u>iwlist scan</u> (that is I can sense the other node in the network, I have tested with different ESSID's to verify).<br>
</div><div><br></div>To your question, I am unable to ping from one node to the other. (Note I DO NOT have a gateway configured). This is what I am confused on, as to if I should be able to.<br><br>It can communicate with a TP-Link router (which is configured as a router by default), and packets can go through them.<br>
<br></div>My question is:<br></div>1) Is a gateway required for OLSR to route packets?<br><div>2) Right now, i have two (and later several) isolated nodes in the network. No gateways. Can I not be able to communicate? If not, why not?<br>
</div><div>3) I have attached the olsr.conf file for the Rpi in the earlier mail.<br><br></div><div>Any details will certainly help me understand where I am going wrong.<br><br>Thanks in advance,<br>Shyam<br></div><div><div>
<div><div><div><div><br><br><div><div><div class="gmail_extra"><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<br>
Message: 1<br>
Date: Thu, 5 Sep 2013 13:42:46 +0200<br>
From: Henning Rogge <<a href="mailto:henning.rogge@fkie.fraunhofer.de">henning.rogge@fkie.fraunhofer.de</a>><br>
To: <<a href="mailto:olsr-users@lists.olsr.org">olsr-users@lists.olsr.org</a>><br>
Subject: Re: [Olsr-users] Fwd: Configuring two nodes directly (without<br>
a gateway) - OLSR.<br>
Message-ID: <<a href="mailto:52286E36.2020000@fkie.fraunhofer.de">52286E36.2020000@fkie.fraunhofer.de</a>><br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"<br>
<br>
Hi,<br>
<br>
do you have already checked that you have direct IP connectivity? Can<br>
you ping the other node over the network?<br>
<br>
If you only have two nodes, ping will work with or without OLSR, because<br>
you can only communicate with 1-hop neighbors without routing protocol.<br>
<br>
If you cannot ping the other node, then you have trouble on layer-2<br>
(wifi) or with your interface configuration.<br>
<br>
Henning Rogge<br>
<br>
On 09/05/2013 01:36 PM, Shyam B wrote:<br>
> Hi Al,<br>
><br>
> I am configuring _multiple RaspberryPI's_ as nodes in a mesh network. I<br>
> don't plan to use routers as gateway. Having installed OLSR on these<br>
> nodes (currently two to begin with), I am unable to communicate between<br>
> them.<br>
> The configuration was working with the routers.<br>
><br>
> _What I did_<br>
><br>
> Exactly same setup on the two nodes:<br>
> Ad-Hoc mode, Channel 10 with same ESSID.<br>
> Tried to change hna, Ip4Broadcast to the same subnetwork as well.<br>
> Nothing works!<br>
><br>
> The iwconfig screenshot and olsrd.conf file attached. I have spent<br>
> multiple hours trying to get it to work!!<br>
><br>
> It would be of real help if someone can point out if communication<br>
> between two raw nodes is selected. If not why not, and what do I have to<br>
> do to make this setup work. Eagerly looking forward!<br>
<br>
Henning Rogge<br>
<br>
--<br>
Diplom-Informatiker Henning Rogge , Fraunhofer-Institut f?r<br>
Kommunikation, Informationsverarbeitung und Ergonomie FKIE<br>
Kommunikationssysteme (KOM)<br>
Fraunhofer Stra?e 20, 53343 Wachtberg, Germany<br>
Telefon <a href="tel:%2B49%20228%209435-961" value="+492289435961">+49 228 9435-961</a>, Fax <a href="tel:%2B49%20228%209435%20685" value="+492289435685">+49 228 9435 685</a><br>
mailto:<a href="mailto:henning.rogge@fkie.fraunhofer.de">henning.rogge@fkie.fraunhofer.de</a> <a href="http://www.fkie.fraunhofer.de" target="_blank">http://www.fkie.fraunhofer.de</a><br>
<br>
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</font></span></blockquote></div><br><br clear="all"><br>-- <br><div><font face="georgia, serif"><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><font face="georgia, serif">Best Regards,<br>
Shyam</font></span></font></div>
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