Proxy releases NSM connection IPs too early about meridio HOT 1 CLOSED

It has been decided that as a short-term solution IP release shall be delayed in the Proxy.

While the long-term solution could include rework of the IPAM so that IPs are not allocated for eternity. Instead there should be an option to lease certain IPs for a certain amount of time. This could secure that IP allocations are not leaked.
For this, the db model should be extended to support expiration time like features. NSM connections are refreshed periodically. During each refresh the IPs allocation is verified, which could be used to update the db entry in IPAM. A garbage collector could be introduced to reap db entries with lifetime who haven't prolonged their leases.
Upon upgrade, the new IPAM instance should migrate the existing database to introduce expiration time support for old db entries that belong to NSM connections. (Obviously rollback could result in serious disturbances.)

from meridio.