>  Error, some other host already uses address xx.xx.xx.xx" whenever I assign an IP to a host.
That's gratuitous ARP at work [1]. When your NIC is brought up and an IP assigned, an ARP request is sent to the local segment saying 'Hi, my IP is xx.xx.xx.xx'. All NICs will receive this message and if the OS detects that the currently configured IP address is the one in the G-ARP, you will be notified. So, something is answering your G-ARP request. Your best bet is to fire up tcpdump, capture some packets, identify the offending MAC addresses.

1. http://wiki.wireshark.org/Gratuitous_ARP


On Sat, Aug 24, 2013 at 2:53 PM, Alex Nyalita <nyalita@gmail.com> wrote:

Thanx guys, will look it up.

On 24 Aug 2013 12:45, "Okechukwu" <okechukwu@gmail.com> wrote:
Have the time when this happens, you are probably connecting them to switch ports which are assigned to a different VLAN - check your switch configs :-)

./Ok3ch


On Fri, Aug 23, 2013 at 8:37 PM, Alex Nyalita <nyalita@gmail.com> wrote:
skunks,

I have a /27 to assign to my list of linux  VMs hosted under KVM hypervisor. Challenge is, they are all throwing the error " Error, some other host already uses address xx.xx.xx.xx" whenever I assign an IP to a host.

None of this IPs is assigned anywhere in the network. Any one experienced this before? How did u resolve?  There is no much info on google.




----

Kind Regards,

Alex Nyalita


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