The roadwarriors <b>carol</b> and <b>dave</b> as well as the gateway <b>moon</b> use
<b>openssl</b> plugin based on the <b>OpenSSL</b> library for all cryptographical
functions plus the <b>ml</b> plugin for the post-quantum ML-KEM key exchange algorithm.
The authentication is based on <b>X.509 certificates</b> and the key exchange on
<b>x25519-ke1_mlkem512</b> for <b>carol</b> and <b>ecp384-ke1_mlkem768</b> for <b>dave</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>.
