[OLSR-users] Securing the OLSR interface

John Gorkos (spam-protected)
Fri May 19 23:08:18 CEST 2006

Consider using MAC filters in your IP tables of the routers.

iptables -P INPUT REJECT
iptables -A INPUT -i eth1  -m mac --mac-source 00:02:2E:33:30:A6 -j ACCEPT 

should do the trick for you (insert your own mac address there.)  Multiple MAC 
addresses allow for multiple routers.

If someone out there is clever enough to change the mac address of their card, 
and spoof your network, they're clever enough to overcome just about anything 
else you try to foil them.

John Gorkos

On Friday 19 May 2006 15:50, Vijay Kolaventy wrote:
> Hi,
> I have just finished setting up a mesh with just three
> mesh routers. Everything is working fine. My only
> worry is security. The two main constraints are:
> 1. Is there something like WPA for Ad-Hoc networks?
> 2. How can I secure the OLSR Interface?
> I have been searching the net for some clue on setting
> up WPA or similar security for the Ad-Hoc network. So
> far I could not find any. All I did was to just
> disable the ssid broadcast.
> I atleast want to prevent users from connecting to the
> SSID be able to access the network. For example, the
> olsr interface has a IP address So if
> somebody sets to his laptop and connects
> to the wifi network he will be able to access the
> network. Somebody please let me know how to prevent
> this.
> Best regards
> Vijay
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