#!/bin/sh
PREFIX=fdcc:1234
KEY=123456789012345678901234
DEV=${1:-wlan0}
HOSTS="2677:3ff:fe59:a39c d63d:7eff:fed7:c77e"
MAC=`ifconfig $DEV | grep -o 'fe80::[0-9a-f:]*' | cut -c7-`

setkey -c <<EOF
flush ;
spdflush ;

spdadd -6 $PREFIX::/64 $PREFIX::/64 any -P out ipsec
   esp/transport//require;

spdadd -6 $PREFIX::/64 $PREFIX::/64 any -P in ipsec
   esp/transport//require;

EOF

for host in $HOSTS
do
    if [ "x$host" != "x$MAC" ]
    then
        setkey -c <<EOF
        add -6 $PREFIX::$host $PREFIX::$MAC esp 15701 -E  3des-cbc "$KEY" ;
        add -6 $PREFIX::$MAC $PREFIX::$host esp 15701 -E  3des-cbc "$KEY" ;
        EOF
    fi
done

ifconfig $DEV del $PREFIX::$MAC/64
ifconfig $DEV add $PREFIX::$MAC/64

echo Your host name is $PREFIX::$MAC