[Planetlab-users] Re: ip_forward and Raw Socket

[abakr at stevens.edu]

Hello,

If I use raw sockets, can I route the packets thru planetlab nodes,
although, I can't set 
ip_forward value to one for these nodes???

Regards,

Alam Bakr


----- Original Message -----
From: Vivek Pai <vivek at CS.Princeton.EDU>
Date: Sunday, June 22, 2008 10:58 am
Subject: Re: [Planetlab-users] Setting: ip_forward

> I'm not a planetlab developer, but I believe
> that's a system-wide setting that would affect
> everyone on the node, since everyone shares the
> same IP address.
> 
> PlanetLab does have safe raw sockets, which only
> allow you to see data for your slice. Using that
> and your own application-level stack, you should
> be able to build a custom router.
> 
> 
> abakr at stevens.edu wrote:
> > Hello All,
> > 
> > I am trying to set ip_forward value on a planetlab node using the 
> command:>    > sudo sysctl -w net.ipv4.ip_forward=1
> > 
> > But, I got this error;
> >    error: permission denied on key 'net.ipv4.ip_forward'
> > 
> > 
> > Can I set ip_forward value or not ? and why?
> > 
> > I need to use planetlab node as a router to forward data to next 
> hops.> 
> > 
> > Regards,
> > 
> > Alam Bakr
> > 
> > _______________________________________________
> > Users mailing list: Users at lists.planet-lab.org
> > https://lists.planet-lab.org/mailman/listinfo/users
> 
>