Hi Andreas,<br><br>I was trying to go through the DPD implementation of strongswan <a href="http://w.r.to">w.r.to</a> Linux 2.6 kernel. We are using the Linux 2.6.35 kernel and need you help in understanding how strongswan implements DPD for Linux.<br>
<br>When I did some googling I found you had a discussion with Herbert regarding this and he suggested to use the policy use_time for implementing the DPD with Linux. I have following queries:<br><br>Does strongswan uses the policy use_time or state use_time for both IKEv1 and IKEv2?<br>
<br>How does this help as per my understanding DPD shall use tunnel use_time as there might be a scenario where in single policy have multiple SA's and one of the SA might be active while rest inactive but the DPD won't be triggered for inactive SA's as the policy use_time will keep on updating.<br>
<br>Regards,<br>Malik<br>