????????????????

[??????]

????:????????????ping????,????????????????????(??????????????????????????????),????ping??(????????????????????ping????????).
 ??????????????????????????????????????????????,????????
  
 iptable????????:       # cat /etc/sysconfig/iptables
# Generated by iptables-save v1.4.7 on Tue Apr  8 14:50:58 2014
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
COMMIT
# Completed on Tue Apr  8 14:50:58 2014
# Generated by iptables-save v1.4.7 on Tue Apr  8 14:50:58 2014
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -i virbr0 -p udp -m udp --dport 53 -j ACCEPT
-A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
-A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT
-A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT
 -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 1798 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 16509 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 5900:6100 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 49152:49216 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 3260 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 111 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 111 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 2049 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 32803 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 32769 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 892 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 892 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 875 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 875 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 662 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 662 -j ACCEPT
 COMMIT
# Completed on Tue Apr  8 14:50:58 2014
  
 ????,??kvm??????agent????????????????:
 
2014-04-25 14:42:52,517 WARN  [kvm.resource.LibvirtComputingResource] 
(agentRequest-Handler-5:null) Failed to program network rules for vm i-2-264-VM
2014-04-25 14:42:52,732 WARN  [kvm.resource.LibvirtComputingResource] 
(agentRequest-Handler-1:null) Failed to program network rules for vm i-2-332-VM
2014-04-25 14:42:52,943 WARN  [kvm.resource.LibvirtComputingResource] 
(agentRequest-Handler-4:null) Failed to program network rules for vm i-2-332-VM