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<body class='hmmessage'><div dir='ltr'><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">Hi All:</span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">In </span><a href="https://libreswan.org/man/ipsec.conf.5.html" target="_blank" style="font-size: 12pt;">https://libreswan.org/man/ipsec.conf.5.html</a>, it writes: <span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">"</span><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">Null encryption is available, and should only be used for testing or benchmarking purposes. </span><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">" .</span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">How to specify it? </span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">I specified it like "</span><font color="#333333" face="Helvetica Neue, Helvetica, Arial, sans-serif"><span style="font-size: 14px; line-height: 20px;"><span style="background-color: rgb(255, 0, 255);">ike</span>=<span style="background-color: rgb(0, 255, 255);">null-md5</span>;modp1024</span></font><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">". But it DOES not work at all. </span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">Can you please tell me how to configure ?</span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">Thanks and regards</span></div><div><span style="color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);"><br></span></div><div><font color="#333333" face="Helvetica Neue, Helvetica, Arial, sans-serif"><span style="font-size: 14px; line-height: 20px; background-color: rgb(255, 255, 255);">Hao Chen</span></font></div> </div></body>
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