The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each to gateway <b>moon</b>.
Both <b>carol</b> and <b>dave</b> request a <b>virtual IP</b> via the IKEv2 configuration payload
by using the <b>leftsourceip=%config</b> parameter. <b>moon</b> assigns virtual IP addresses
from a simple pool defined by <b>rightsourceip=10.3.0.0/28</b> in a monotonously
increasing order.
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Upon the successful establishment of the IPsec tunnel, <b>leftfirewall=yes</b> automatically
inserts iptables-based firewall rules that let pass the tunneled traffic. In order to test the
tunnels, <b>carol</b> and <b>dave</b> then ping the client <b>alice</b> behind the gateway
<b>moon</b>. The source IP addresses of the two pings will be the virtual IPs <b>10.3.0.1</b>
and <b>10.3.0.2</b>, respectively.
