The roadwarrior <b>carol</b> and the gateway <b>moon</b> use the <b>botan</b>
plugin based on the <b>Botan</b> library for all cryptographical functions whereas
roadwarrior <b>dave</b> uses the <b>openssl</b> plugin. The authentication is based
on <b>X.509 certificates</b> and the key exchange on <b>ecp256</b>.
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Upon the successful establishment of the IPsec tunnels, the updown script
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>.
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