KB45423 - Same IP assigned to different users within short span of time while using IP pool

This article is to describe the same IP was assigned to other users within short span(within 10 minutes) of time interval while using IP pool issue.

This issue was reported on 9.1R13 with IPv4 pool configuration in A/P cluster.
The cause of the issue is because nc_prefip is not synced across cluster.

The solution/fix is provided in 9.1R15 PCS code the following was fixed in this code:
In the user-record cleanup script( DSServer.pm), we removed dependency on nc_prefip when cleaning up user-record.
From 9.1R15 the same IP using IP pool was not assigned to different users in short span of time.