ipsec _updown - route and firewall manipulation script
_updown is invoked by pluto when it has brought up a new connection.
This script is used to insert the appropriate routing entries for IPsec
operation. It can also be used to insert and delete dynamic iptables
firewall rules. The interface to the script is documented in the pluto
Man page written for the Linux FreeS/WAN project
<http://www.freeswan.org/> by Michael Richardson. Original program
written by Henry Spencer. Extended for the Linux strongSwan project
<http://www.strongswan.org/> by Andreas Steffen.
27 Apr 2006