[Olsr-dev] OLSRv2 release version 0.3.0

[Henning Rogge]

On 09/23/2013 12:15 PM, Syed Salman Haider Rizvi wrote:
> For olsrd2 i m just using wlan0 and lan4 which have different IPs for
> lan1 lan2 lan3 i have the same ip like for wlan0 if you want i can
> change it but i dont think it will make any changes in OLSRd 

Yes, it will make a difference.

> (spam-protected):~# route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 192.168.5.0     0.0.0.0         255.255.255.0   U     0      0        0 lan4
> 10.0.1.0        0.0.0.0         255.255.255.0   U     0      0        0 lan1
> 10.0.1.0        0.0.0.0         255.255.255.0   U     0      0        0 lan2
> 10.0.1.0        0.0.0.0         255.255.255.0   U     0      0        0 lan3
> 10.0.1.0        0.0.0.0         255.255.255.0   U     0      0        0
> wlan0
> 0.0.0.0         192.168.5.9     0.0.0.0         UG    0      0        0 lan4

The problem is that your system is inconsistent.

First, the computer doesn't know where to send your pings, because (as
you can see above) there are multiple 10.0.1.0/24 routes, each with the
same priority.

This also triggers the problem with the multicast group, because IPv4
multicast groups are registered by using the SOURCE IP of the interface
(not the interface index)... which is not unique in your case.

I am in the process of setting up a group of VMs to test the openwrt
IPv4 only case, but you can already test your setup with some unique
network masks.

use 10.0.1.0/24, 10.1.1.0/24, 10.2.1.0/24 and 10.3.1.0/24 for lan1/2/3
and wlan0 for example.

Henning Rogge

-- 
Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
Kommunikation, Informationsverarbeitung und Ergonomie FKIE
Kommunikationssysteme (KOM)
Fraunhofer Straße 20, 53343 Wachtberg, Germany
Telefon +49 228 9435-961,   Fax +49 228 9435 685
mailto:(spam-protected) http://www.fkie.fraunhofer.de

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