Re: [User-mode-linux-devel] Misc problems with slip-based networking

[Jeff D. <jd...@ka...>]

yd...@al... said:
> usermode:~# ifconfig umn 10.0.0.135 hw ether a:0:0:85:0:0 Failed to
> set slip line discipline - errno = 1 Failed to set O_ASYNC and
> O_NONBLOCK on fd # -1, errno = 9 

That's because you're running a fairly recent 2.2 kernel.  Sometime between 
2.2.5 (which is what I'm running) and whatever you're running, someone 
tightened up the security on slip so that you need CAP_NET_ADMIN (or root) in 
order to set slip encapsulation on a tty.  On my box, root is only needed for 
configuring the slip device.  A better suid helper is on my list of things to 
do.

				Jeff