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When a tunnel is configured with auto=start, the tunnel is supposed to remain up.
When the remote end sends a delete, the tunnel is torn down, but no new tunnel is initiated. Also, the tunnel is placed in "auto=add" mode, not "auto=route", causing a potential plaintext packet leak.

note that a DPD/liveness failure at the remote can cause it to send a delete request.

See also the discussion at:


https://lists.libreswan.org/pipermail/swan-dev/2016-July/001537.html

Successfully verified on all architectures that connection with auto=start is re-initiated after:

 * ipsec auto --down <conn>
 * ipsec whack --deletestate <newest_ipsec_sa_id>

from remote end. Please notice that connection is NOT re-initiated after:

 * ipsec whack --name <conn> --delete 

For more details, please see TJ#1921798.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2101