If a TCP/IP stack (which is the distributor for a DRVIPA involved in IPSec connections) fails, ownership of the entries in the EZBDVIPA coupling facility structure associated with that DRVIPA (owned by the failing TCP/IP stack) is taken over. The ownership is taken over by the TCP/IP stack designated as the backup for the DRVIPA, if a backup stack exists. When the failing stack is restarted, ownership of those entries is given back to it.