1

We are building a multi-subnet, always-on availability group. I initially requested the below IPs.

For Failover Cluster

192.168.1.129

192.168.2.129

For Listener

192.168.1.130

192.168.2.130

My network team provided the IPs below.

For Failover Cluster

192.168.1.129

192.168.2.130

For Listener

192.168.1.131

192.168.2.132

To my understanding, the above IPs should work as they belong to different subnets, but I want to be 100% sure that the IPs do not need to be identical except for the subnet. As long as the IPs belong to separate subnets, it should be fine.

Hannah Vernon
  • 70,928
  • 22
  • 177
  • 323
SQL_NoExpert
  • 1,107
  • 1
  • 21
  • 37

1 Answers1

3

The IP addresses should be on separate subnets. It looks like that from the cursory info you provided, however you haven't explicitly denoted the subnet address for each.

The actual addresses are unimportant, as long as they are unique and belong to a valid subnet physically available to the respective server. The last octets can be the same, but they don't have to be.

Hannah Vernon
  • 70,928
  • 22
  • 177
  • 323