[Olsr-users] (no subject)
Fri Oct 31 07:22:25 CET 2014
On 10/31/2014 11:19 AM, akshay mithyantha wrote:
> A project I've been working on requires data to be sent on multihop
> I've used 3 DELL laptops which has Broadcom BCM4365 wireless hybrid
> adapter and a Linksys WRT 54GL router. The devices are running OLSR
> 0.6.7. As the loss was very high when the devices were kept afar, I've
> put the devices in the same room.
> Consider device A, B, C to be the laptops and device D to be the router.
> Currently all devices can communicate with each other.
> Now as I wanted the devices to communicate only to its immediate
> neighbor, I manually blocked the 2nd hop and 3rd hop neighbors using
> the following command.
> sudo iptables -A INPUT -m mac --mac-source <mac id> -j DROP
> The device A can send data only to B blocking C and D, B can send data
> to A and C but blocked D, C can send data to B and D, but blocked A
> and D can send data to C but blocked A and B.
> The topology being
> A <-----> B <-----> C <-----> D
> An example of the current routing table of A after manually blocking
> of other neighbors is
> 1st hop 2nd hop
> B C
> The device A can ping its 2nd hop neighbor device C through B.
> But the device B cannot ping its 2nd hop neighbor router D.
> The device A cannot pass data to 3rd hop neighbor router D.
> The router can ping only its immediate neighbor C.
> Is this problem due to incompatibility of network adapters of laptop
> and the router? Should I replace the laptops with the routers or is
> there any other issue that I don't know of?
To ensure that your network configuration is correct, do the following:-
1. manually add route to C via B
2. manually add route to D via B
1. enable ip_forward
2. manually add route to D via C
1. enable ip_forward
2. manually add route to A via B
1. manually add route to A via C
2. manually add route to B via C
Now, you should be able to ping end to end (A ==> D, D ==> A).
If that happens, there is no problem with your network adapters and
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