[INS-40912] Virtual host name: -vip is assigned to another system on the network.

During the RAC grid installation [INS-40912] below:

The reason for this error is most possibly the installer is pinging the VIP (either the IP or the vip name) provided and getting a response back! It should not get a response.

So, just to test, ping both the vip name and the vip. In my case:

[root@drac01]# ping drac01-vip

PING drac01-priv.testserver.com (192.168.20.181) 56(84) bytes of data.
 64 bytes from drac01-priv.testserver.com (192.168.20.181): icmp_seq=1 ttl=64 time=0.013 ms
 64 bytes from drac01-priv.testserver.com (192.168.20.181): icmp_seq=2 ttl=64 time=0.027 ms
 64 bytes from drac01-priv.testserver.com (192.168.20.181): icmp_seq=3 ttl=64 time=0.014 ms

The drac01-vip was responding back!! I discovered that it was just a typo in my “/etc/hosts” file. The drac01-vip was pointing to the private IP by mistake.

#Public
192.168.10.181    drac01.testserver.com        drac01
192.168.10.182    drac02.testserver.com        drac02
#Private
192.168.20.181    drac01-priv.testserver.com   drac01-vip
192.168.20.182    drac02-priv.testserver.com   drac02-vip
#Virtual
192.168.10.191    drac01-vip.testserver.com    drac01-vip
192.168.10.192    drac02-vip.testserver.com    drac02-vip
#Scan
192.168.10.141    drac-scan.testserver.com     drac-scan
192.168.10.142    drac-scan.testserver.com     drac-scan
192.168.10.143    drac-scan.testserver.com     drac-scan

After fixing the typo above, the issue was resolved. Therefore, check the below:

• ping the vip to see whether there is a response
• check your /etc/hosts file for a typo
• make sure that the VIP was not entered in the DNS so that it is automatically resolved…