[Olsr-users] Olsrd seems working on Samsung Galaxy S4 handsets but no neighbor is shown

[Abubakr Ali]

Hi

I've checked that:

   - IP-address on each Samsung-phone is static and correct.
   - Netmask on each Samsung-phone is correct
   - Gateway IP-address on each Samsung-phone is its interface IP-address
   - All Samsung-phones are connected to the same adhoc network (beside
   additional three Nexus-7 tablets)

Note that:

   - the adhoc network does not require a password
   - I have three Nexus-7-tablets run an adhoc network perfectly using the
   same ".conf" file

However, I noticed that whenever I create and run an adhoc network from any
of the Samsungs:

   - each of the other two Samsungs can discover the IBSS and join it.
   - each of the three Nexus-7 can discover the IBSS and join it.
   - the adhoc-creator-Samsung can only see and ping the Nexus-tablets (I
   used "Fing" android-app)
   - any Nexus can see and ping adhoc-creator-Samsung and the other
   Nexus-tablets only (I used "Fing" android-app)
   - any Samsung already-joined-the-adhoc-network can't be seen
   by adhoc-creator-Samsung or the Nexus-tablets

Hence, I can assure you that the network connectivity is fine, at least
between the Samsung and the Nexus. So, I took step forward and installed
OLSRD on one Samsung (which I used to create an adhoc network). the OLSRD
works perfect between the adhoc-creator-Samsung and the three Nexus-7,
taking into account that OLSRD didn't show any neighbor in the other two
Samsung-phones who, by the way joined the adhoc network (although they
can't be pinged)

My question is why OLSRD does't work between the Samsung-phones ? please
help .. I am getting really confused

Thanks



Ali, Abubakr
Research and Development Engineer




On 29 January 2014 16:27, Henning Rogge <(spam-protected)> wrote:

> Time to grab a notebook with wifi-card and run Wireshark to see what
> is transmitted over the air and what is not.
>
> I would suggest not running the routing protocol until you have fixed
> the link issue, because it complicated debugging the situation. Check
> for the easy things first (ip addresses, netmasks, wifi passwords)...
>
> Henning Rogge
>
> On Wed, Jan 29, 2014 at 5:19 PM, Abubakr Ali <(spam-protected)>
> wrote:
> > Thanks Mr. Henning for your reply  ..
> >
> > I've tried pinging between two of these Samsungs but I failed, I am
> getting
> > "Destination Host Unreachable"...
> > I am also unable to perform the troubleshooting in the link you have
> send me
> > (as the "iwconfig" doesn't exist in Android).
> >
> > However, from the troubleshooting link, I can see that it has nothing to
> do
> > with OLSRD and it is a networking issue that CyanogenMod is responsible
> for.
> > Something is keeping these handsets hidden from each other, but at the
> same
> > time allowing them to discover the IBSS and connect to it.
> >
> > Thank you
> >
> > Ali, Abubakr
> > Research and Development Engineer
> >
> >
> >
> > On 29 January 2014 15:42, Henning Rogge <(spam-protected)> wrote:
> >>
> >> Hi,
> >>
> >> can you ping the direct neighbors of the S4 (or can they ping the S4)?
> >> This should be possible without Olsrd running, so you should test this
> >> first.
> >>
> >> See http://www.olsr.org/mediawiki/index.php/First_Mesh_Troubleshooting
> >>
> >> Henning Rogge
> >>
> >> On Wed, Jan 29, 2014 at 3:52 PM, Abubakr Ali <(spam-protected)>
> >> wrote:
> >> > Hi All,
> >> >
> >> > I am running OLSRD on three Samsung Galaxy S4 phones that are running
> >> > CyanogenMod v.10.2.0. After installation, OLSRD seems to be working
> fine
> >> > (I
> >> > have already tested the same ".conf" file on three Nexus 7 tablets and
> >> > it is
> >> > working perfect - OLSRD over Adhoc network).
> >> >
> >> > Although the Samsungs are connected to the same adhoc network, they
> >> > can't
> >> > not ping or see each other, and the OLSRD table shows that there are
> no
> >> > neighbors around. what could be the issue ? (knowing that I have
> already
> >> > change the iptables rules)
> >> >
> >> > Thanks
> >> >
> >> > Ali, Abubakr
> >> > Research and Development Engineer
> >> >
> >> >
> >> >
> >> > --
> >> > Olsr-users mailing list
> >> > (spam-protected)
> >> > https://lists.olsr.org/mailman/listinfo/olsr-users
> >
> >
>
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