The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each 
to gateway <b>moon</b> using <b>IKEv1 Aggressive Mode</b>. The authentication is
based on <b>X.509 certificates</b>. Upon the successful establishment of the IPsec
tunnels, <b>leftfirewall=yes</b> automatically inserts iptables-based firewall
rules that let pass the tunneled traffic. In order to test both tunnel and
firewall, both <b>carol</b> and <b>dave</b> ping the client <b>alice</b> behind
the gateway <b>moon</b>.
