general network down for VM

general network down for VM (13 Replies, Read 3770 times)

pumanetwork	February 8, 2016, 10:21 am
Group: Member Post Group: Newbie Posts: 21 Status:	Hello, I meet a second time a problem with a new slave Xen server installed for 3 weeks. General network for VM is down suddenly. The second time happened last night at about the same time a customer has reinstalled his vps. In /var/log/messages, i can observe this for all VM interfaces : Feb 8 02:00:56 s1 dhcpd: No subnet declaration for vifv1054.0-emu (no IPv4 addresses). Feb 8 02:00:56 s1 dhcpd: Ignoring requests on vifv1054.0-emu. If this is not what Feb 8 02:00:56 s1 dhcpd: you want, please write a subnet declaration Feb 8 02:00:56 s1 dhcpd: in your dhcpd.conf file for the network segment Feb 8 02:00:56 s1 dhcpd: to which interface vifv1054.0-emu is attached. dhcpd.conf looks good. IP, mask, gateway are alright configured in the VM at this moment. One hour later, DHCP informs VM about network infos : Feb 8 02:01:56 s1 dhcpd: DHCPDISCOVER from 02:00:00:0e:db:64 via viifbr0 Feb 8 02:01:56 s1 dhcpd: DHCPOFFER on 164.0.01 to 02:00:00:0e:db:64 via viifbr0 I have restarted a lot of services but nothing : ifdown eth0 && ifup eth0 service network restart service dhcpd restart service ebtables restart service iptables restart service libvirtd restart service libvirt-guests restart service virtnetwork restart service zzvirtservice restart The only way to get network up for all VM is to reboot this server. So, why i get this probleme and how can i fix it please ? CentOS release 6.7 (Final) [root@s1 ~]# uname -a Linux s1 4.1.15-4.el6xen.x86_64 #1 SMP Tue Dec 29 20:16:34 AEDT 2015 x86_64 x86_64 x86_64 GNU/Linux Thank you
IP: --

Users viewing this topic
	1 guests, 0 users.