moon::/etc/init.d/iptables start 2> /dev/null
carol::/etc/init.d/iptables start 2> /dev/null
dave::/etc/init.d/iptables start 2> /dev/null
carol::ipsec start
dave::ipsec start
moon::ipsec start
carol::sleep 2
carol::ipsec up alice
carol::ipsec up venus 
dave::ipsec up venus
dave::ipsec up alice
carol::sleep 1