Hi, I needed to switch one DomU from one IP to an other tonight. I''m on centos 5.2 (Dom0 and DomU) Therefore, I made a script using perl to make so. This script modify the IPADDR line in the following files : - /etc/sysconfig/network-scripts/ifcfg-eth0 - /etc/sysconfig/networking/devices/ifcfg-eth0 - /etc/sysconfig/networking/profiles/default/ifcfg-eth0 Then I reboot the VM and it worked just fine. The VM was still reachable using its old ip address. I thought that was because I do not to have rebooted the Dom0. I put my IP back in the above files and rebooted the Dom0 and DomU. Nevertheless, my DomU is still reachable from the 2 different IPs. Any ideas/suggestions ? I can''t understand how it is possible. I tried to change the vif mac address but it is still the same. Regards, -- Stéphane Cesbron Responsable Régional Informatique, INSERM ADR Grand-Ouest, BRETAGNE, PAYS DE LA LOIRE et CENTRE 63, quai Magellan 3ème étage - Hall B B.P. 32116 44021 Nantes cedex 1 Email : stephane.cesbron@inserm.fr Tél : 02.40.20.92.28 Portable : 06.78.68.76.39 ----------------------------------------------------------------- Ce message et toutes les pieces jointes sont etablis a l''intention exclusive de ses destinataires et peuvent etre confidentiels ou proteges. L''internet ne permettant pas d''assurer l''integrite de ce message, l''INSERM decline toute responsabilite au titre de ce message, dans l''hypothese ou il aurait ete modifie. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. Si vous recevez ce message par erreur, merci de le detruire et d''en avertir immediatement l''expediteur. Merci. The information transmitted is intended exclusively for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any disclosure, copying, distribution or other action based upon the information by persons or entities other than the intended recipient is prohibited. If you receive this information in error, please contact the sender and delete the material from any and all computers. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Stéphane,> > I needed to switch one DomU from one IP to an other tonight. > I''m on centos 5.2 (Dom0 and DomU) > Therefore, I made a script using perl to make so. This script modify the > IPADDR line in the following files : > - /etc/sysconfig/network-scripts/ifcfg-eth0 > - /etc/sysconfig/networking/devices/ifcfg-eth0 > - /etc/sysconfig/networking/profiles/default/ifcfg-eth0modifying "/etc/sysconfig/network-scripts/ifcfg-eth0" should be enough I guess...> Then I reboot the VM and it worked just fine. The VM was still reachable > using its old ip address. I thought that was because I do not to have > rebooted the Dom0. > I put my IP back in the above files and rebooted the Dom0 and DomU. > Nevertheless, my DomU is still reachable from the 2 different IPs. > > Any ideas/suggestions ? > I can''t understand how it is possible. I tried to change the vif mac > address but it is still the same.Could you post the output of ifconfig? Are you sure your forme IP address was not bound to something else than eth0, like eth1 or eth2? When deploying linux vm, one common mistake is that when you change the mac address, at boot up udev make a new rules and bind your new mac address on eth1 or eth2 and up (depending on the last time you cleaned up your /etc/udev/rules.d/xxx_net_xxx file. So eth0 is still bound to the old mac address which is not existing anymore. I guess cleaning udev should be enough, otherwise could you please post your ifconfig output. Cheers, Denis> > Regards, >-- Denis Cardon Tranquil IT Systems 44 bvd des pas enchantés 44230 Saint Sébastien sur Loire tel : +33 (0) 2.40.97.57.56 http://www.tranquil-it-systems.fr _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Denis,>> I needed to switch one DomU from one IP to an other tonight. >> I''m on centos 5.2 (Dom0 and DomU) >> Therefore, I made a script using perl to make so. This script modify >> the IPADDR line in the following files : >> - /etc/sysconfig/network-scripts/ifcfg-eth0 >> - /etc/sysconfig/networking/devices/ifcfg-eth0 >> - /etc/sysconfig/networking/profiles/default/ifcfg-eth0 > > modifying "/etc/sysconfig/network-scripts/ifcfg-eth0" should be enough > I guess...I know but I wanted to maintain consistency of my system.>> Then I reboot the VM and it worked just fine. The VM was still >> reachable using its old ip address. I thought that was because I do >> not to have rebooted the Dom0. >> I put my IP back in the above files and rebooted the Dom0 and DomU. >> Nevertheless, my DomU is still reachable from the 2 different IPs. >> >> Any ideas/suggestions ? >> I can''t understand how it is possible. I tried to change the vif mac >> address but it is still the same. > > Could you post the output of ifconfig? Are you sure your forme IP > address was not bound to something else than eth0, like eth1 or eth2? > > When deploying linux vm, one common mistake is that when you change > the mac address, at boot up udev make a new rules and bind your new > mac address on eth1 or eth2 and up (depending on the last time you > cleaned up your /etc/udev/rules.d/xxx_net_xxx file. So eth0 is still > bound to the old mac address which is not existing anymore. > > I guess cleaning udev should be enough, otherwise could you please > post your ifconfig output. >I''ll try tomorrow when I ''ll get back to work. I tried the ifconfig command today and got only the IP address from the "/etc/sysconfig/network-scripts/ifcfg-eth0" which is running. We''ll see tomorrow afternoon I think as I''ll be busy all the morning.> Cheers, > > Denis > > > >> >> Regards, >> > >-- Stéphane Cesbron Responsable Régional Informatique, INSERM ADR Grand-Ouest, BRETAGNE, PAYS DE LA LOIRE et CENTRE 63, quai Magellan 3ème étage - Hall B B.P. 32116 44021 Nantes cedex 1 Email : stephane.cesbron@inserm.fr Tél : 02.40.20.92.28 Portable : 06.78.68.76.39 ----------------------------------------------------------------- Ce message et toutes les pieces jointes sont etablis a l''intention exclusive de ses destinataires et peuvent etre confidentiels ou proteges. L''internet ne permettant pas d''assurer l''integrite de ce message, l''INSERM decline toute responsabilite au titre de ce message, dans l''hypothese ou il aurait ete modifie. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. Si vous recevez ce message par erreur, merci de le detruire et d''en avertir immediatement l''expediteur. Merci. The information transmitted is intended exclusively for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any disclosure, copying, distribution or other action based upon the information by persons or entities other than the intended recipient is prohibited. If you receive this information in error, please contact the sender and delete the material from any and all computers. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users