Re: [PATCH] using an interface without IP address

On Thu, Jan 29, 2004 at 12:10:09AM +0100, Domenico Andreoli wrote:
> Mike Schiffman wrote:
> > Hey guys, just a quick note, this is applied to the latest 1.1.2 tree 
> > which I probably will release in the short term to make this 
> > functionality available. Thanks to Fred and Ste Jones. This looks like 
> > it works!
> > 
> 
> hmmm.. i just compiled 1.1.2rc4 but it does not seem fixed to me :(

Currently, I still havent found the ioct() giving me all the devices,
even those that are down (I even sent a mail to net-linux to get the
solution but got no answer).  So, results bellow are "normal"


> # ifconfig eth1; ifdown eth1; arping -i eth1 192.168.70.70; ifup eth1
> arping: libnet_init(): libnet_select_device(): no such device found: eth1.

Normal, eth1 is down.

> 
> # ifdown eth1; arping -i eth1 192.168.70.70; ifup eth1
> arping: libnet_init(): libnet_select_device(): no such device found: eth1.


Nnormal, eth1 is down.

> 
> # ifdown eth1; ifconfig eth1 0.0.0.0 up; arping -i eth1 192.168.70.70; ifup eth1
> arping: libnet_get_ipaddr4(libnet): libnet_get_ipaddr4(): ioctl(): Cannot assign requested address

??? Where does "libnet_get_ipaddr4(libnet)" comes from ?

> 
> #
> 
> here at debian libnet is compiled also as dynamic library so i did not recompile arping
> (my patch to achieve dynamic shareds is always available, just ask) to produce the above
> results. recompiling arping as static executable anyway does not change them.
> 

Also normal.


If you mean it worked with libnet-1.0 when device is down, I'll have a
look there.

	Fred Raynal