David Young --> tech-net (2007-07-11 13:06:03 -0500):
> On Wed, Jul 11, 2007 at 12:53:05PM +0200, Jukka Salmi wrote:
[...]
> > $ ifconfig vr0
> > vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > 	[...]
> > 	inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
> > 	inet alias 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
> > 	inet alias 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255
> > 
> > $ ifconfig vr0 inet 192.168.0.1/24
> > $ ifconfig vr0
> > vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > 	[...]
> > 	inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
> > 	inet alias 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255
> > 	inet alias 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
> > 
> > $ ifconfig vr0 inet 192.168.0.1/24
> > $ ifconfig vr0
> > vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > 	[...]
> > 	inet 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255
> > 	inet alias 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
> > 
> > Huh, 192.168.0.2 is gone...
> 
> You have to use the 'alias' keyword, or else the kernel will replace the
> first address instead of adding an address.

I didn't want to add a new address. I just wanted to point out that
if I "add" the already existing first address, then the addresses are
rotated; and if I "add" it again, then the first alias address
disappears. In other words, the first address was not replaced.


Regards, Jukka

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