title: Virtual IP failover on 2 Linux box
body: <p>I have 2 Linux VM Box.</p>
  
  <p>VM1 ip is 192.168.0.4
  VM2 ip is 192.168.0.5</p>
  
  <p>GW: 192.168.0.1, net mask: 255.255.255.0</p>
  
  <p>1)I have added a virtual ip on <strong>VM1</strong></p>
  
  <p>ifconfig eth0:1 192.168.0.10 netmask 255.255.255.0 up</p>
  
  <p>Then I can ping it successfully from my client</p>
  
  <p>2)removed the virtual ip on <strong>VM1</strong></p>
  
  <p>ifconfig eth0:1 192.168.0.10 netmask 255.255.255.0 down</p>
  
  <p>Then I can NOT ping it successfully from my client</p>
  
  <p>3)Add the same virtual ip on <strong>VM2</strong></p>
  
  <p>ifconfig eth0:1 192.168.0.10 netmask 255.255.255.0 up</p>
  
  <p>!!I failed to ping this ip!!</p>
  
  <p>however 1-2 hours later, I can ping it successfully.</p>