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[Users] detecting a down tunnel & auto restarting

From: Immanuel Rahardja (immanuel_at_cisco.com)
Date: Fri Mar 22 2002 - 06:10:03 CET


Is the a way for freeswan to know that the peer endpt is down
& that it should auto. start/negotiate another tunnel?

My configuration is as follows:

conn AAA
        type=tunnel
        keyingtries=0
        pfs=no
        authby=secret
        esp=3des-sha1-96
        leftsubnet=10.83.3.0/24
        left=10.80.1.254
        right=10.80.1.1
        rightnexthop=10.80.1.254
        auto=add

FreeSwan is the "right" connection. Whenever the "left" peer reboots, I'd
like FreeSwan
to auto. start/negotiate a tunnel when traffic is originating from the
"left". The "left"
peer would have to necessary settings to set up a tunnel, except that that
all previous
state information was naturally lost.

The initial process was started with ipsec auto --restart, followed by a
ipsec auto --up AAA.

Thanks.

  Immanuel

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