| 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 IKEv2 configuration payload. |
| <p/> |
| The gateway <b>moon</b> uses <b>route-based forwarding</b> with an <b>XFRM |
| interface</b>, with firewall rules to allow traffic to pass. The IKE daemon |
| does not install routes for CHILD_SAs with outbound interface ID, so a static |
| route is installed for the virtual IP subnet via XFRM interface. |
| <p/> |
| Both <b>carol</b> and <b>dave</b> 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>carol1</b> and <b>dave1</b>, respectively. |
