[Linux-ha-dev] problem shutting down first created aliasinterfaces on linux

[Sebastian Reitenbach]

Dejan Muhamedagic <dejanmm at fastmail.fm> wrote: 
> Hi,
> 
> On Fri, Jan 11, 2008 at 01:39:28PM +0100, Sebastian Reitenbach wrote:
> > Hi,
> > 
> > I stumbled across a strange behavior of ifconfig/ip, regarding alias IP 
> > addresses on linux. I found this behaviour on suse 10.1, 10.2, 10.3 and 
> > SLES10SP1.
> > 
> > When you configure multiple aliases on an single interface, and you 
specify 
> > netmasks and broadcasts, and then try to shutdown just the first created 
> > alias then all IP aliases for that interface will be gone. Removing one 
of 
> > the later created aliases works as expected.
> > 
> > As I think virtual IP aliases are used often in HA environments, it 
might be 
> > of interest to you. 
> > 
> > here is more information:
> > https://bugzilla.novell.com/show_bug.cgi?id=352841
> 
> A strange and frightening bug. I wonder how it went unnoticed
> this long.
yeah, me too. I uploaded a testscript to the bugreport, You can test whether 
it happens to you too. at least I have it seen on any suse version I have 
around here... 


> 
> Thanks for the info.
no problem.

Sebastian