[Openswan Users] Left side does not detect disconnection

[Hansjörg Pfister]

Hello,
i have the following problem:
after a change in the ipsec config-files, vpn-tunnels will not
establish any more.
Eg. when changing a PSK for one VPN all other VPN-tunnels will
disconnect and will not make any attempt to reconnect. More precisely:
One left side - several right sides. The left side has made the
change and the right (which should not be affected by the change) sides
do not detect the disconnect. The left sides assumes, that the
connection is still alive.