Roadwarrior <b>carol</b> proposes  to gateway <b>moon</b> the ESP cipher suite
<b>AES_CBC_256 / AES_XCBC_96</b> by defining <b>esp=aes256-aesxcbc-modp2048</b>
in ipsec.conf. The same cipher suite is used for IKE: <b>ike=aes256-aesxcbc-modp2048</b>.
A ping from <b>carol</b> to <b>alice</b> successfully checks the established tunnel.