Dejan Muhamedagic <[EMAIL PROTECTED]> wrote: > Hi, > > On Fri, Jan 11, 2008 at 04:56:46PM +0100, Sebastian Reitenbach wrote: > > Dejan Muhamedagic <[EMAIL PROTECTED]> 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... > > It does on the openSUSE 10.3 as well as on Debian Etch. But, as > Lars pointed out, only if a new netmask is defined. yes, and that might be the reason why it was not yet noted.
> > BTW, looking a bit around, it seems like there were similar > problems in the past. I choose a different network than the physical interface has, because I just did not wanted to interfere with maybe existing addresses. I just had the script for testing purposes, in production my aliases will be from the same subnet, so I will not have the problem. But maybe there are people that need to configure their aliases that way, and these will then face that problem. cheers Sebastian _______________________________________________________ Linux-HA-Dev: [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev Home Page: http://linux-ha.org/
