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Re: [Xen-users] Seeing the IP addresses of domUs from dom0


  • To: Ralf Schmitt <ibm.tivoli@xxxxxxxx>
  • From: Anand Gupta <xen.mails@xxxxxxxxx>
  • Date: Fri, 10 Feb 2006 20:03:43 +0530
  • Cc: Xen Users <Xen-users@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 10 Feb 2006 14:45:20 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

On 2/10/06, Ralf Schmitt <ibm.tivoli@xxxxxxxx> wrote:
with a MAC address entry in the domU configuration file it would
also be possible to find the IP address in the arp table with the
command:

   arp -n

on dom0 if you don't want to add each domU to the dhcp configuration.

You should also have a look at the tool "arpwatch". It sends you a mail
if a new address appears.

http://rpmseek.com/rpm-pl/arpwatch.html?hl=de&cx=857:A:80

Maybe this works only in a routed xen network ...

This doesn't work on my routed setup

arp -n
Address                  HWtype  HWaddress           Flags Mask            Iface
192.168.1.3              ether   00:09:5B:E6:3E:79   C                     eth0
192.168.1.1              ether   00:A0:C5:9B:AE:1D   C                     eth0
192.168.1.240            *       *                   MP                    eth0

The ip 192.168.1.240 is of a domU and the HWaddress has a * in it.


--
regards,

Anand Gupta
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