[Olsr-users] Strange ignored packets problem
Fri Jul 20 13:30:11 CEST 2007
which card / driver do you use?
On Jul 20, 2007, at 8:47 AM, Ignacio García Pérez wrote:
> I have a test setup of 7 nodes deployed in a 1 sq. km urban area.
> The net is 10.0.0.0/8, nodes are numbered 10.1.1.10, 10.1.1.20,
> 10.1.1.30 and so on.
> The broadcast address is the olsrd default: 10.255.255.255.
> From a node, olsrd sees HELLO/TC packets from the nodes with a good
> connection, but seems to see NO PACKETS AT ALL from nodes to which I
> know it has a poor (BUT USABLE) connection.
> Then, if I start tcpdump, olsrd suddenly starts seeing packets from
> those nodes (with an expected 25% or so packet loss).
> It looks like the radio card discards those packets when it is not in
> promiscuous mode (which is the side effect of running tcpdump AFAIK).
> When I change the setup to use 255.255.255.255 as broadcast
> address, no
> packets are ignored.
> Any idea about what may be the explanation of this behaviour?
> Olsr-users mailing list
C.O.S.H.E.R. - Completely Open Source Headers Engineering and Research
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