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							- The roadwarriors <b>carol</b> and <b>dave</b> set up a connection to gateway <b>moon</b>.
 
- The authentication is based on Pre-Shared Keys (<b>PSK</b>)
 
- followed by extended authentication (<b>XAUTH</b>) of <b>carol</b> and <b>dave</b>
 
- based on user names and passwords.
 
- <p>
 
- Upon the successful establishment of the IPsec tunnel, leftfirewall=yes automatically
 
- inserts iptables-based firewall rules that let pass the tunneled traffic.
 
- In order to test both tunnel and firewall, <b>carol</b> and <b>dave</b> ping the client
 
- <b>alice</b> behind the gateway <b>moon</b>.
 
 
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