Re: [B.A.T.M.A.N.] batmand terminates silently

[Axel Neumann <axel@open-mesh.net>]

Hi Stephan,


you can use rv 687 with
--resist-blocking-send 
which lets daemon survive if firewall blocks outgoing OGMs

regards
axel


> > few weeks agoe I had sometimes the problem that batmand (experimental)
> > exits silently. Today I found maybe one reason for this.
> > When you have batman running and insert the iptable rule
> >
> > iptables -I OUTPUT -o eth1 -j DROP
> >
> >
> > batmand exits. This also happen for additional interfaces controlled
> > by batmand.
>
> Ah sure,
> its not a bug, its a feature :-)
> Batman checks if packets generated on its behaf are blocked by a firewall
> and exits if this is the case.
> The assumption when implementing this was, that usually the firewall is
> configured before batmand is started and not touched later on.
>
> In the assumed case the immediate exit helps to directly indicate the
> problem to the maintainer of the node. Actually debuglevel 3 should report
> this.
>
> Of course in your fancy setups this might be undesirable and having an
> option to disable this feature is a good idea. Put this on the todo list.
>
> ciao,
> axel