<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Martin,<br class="">Thanks for your previous response, and sorry for my email that preceded this that I seen by accident too soon.<br class=""><br class="">I set the connection with 'esp=null-sha1!’ on both client and server side. Then ran tcpdump on both sides.<br class=""><br class="">I experienced a hang at 21:23:37. <br class=""><br class="">There was nothing in the syslog at that time of interest:<br class=""><font face="Courier" class="">Oct 28 21:22:59 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[20274]<br class="">Oct 28 21:23:10 ip-10-0-16-8 charon: 11[IKE] sending keep alive to AA.AAA.AA.A[52010]<br class="">Oct 28 21:23:10 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[52010]<br class="">Oct 28 21:23:19 ip-10-0-16-8 charon: 06[IKE] sending keep alive to AA.AAA.AA.A[20274]<br class="">Oct 28 21:23:19 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[20274]<br class="">Oct 28 21:23:30 ip-10-0-16-8 charon: 16[IKE] sending keep alive to AA.AAA.AA.A[52010]<br class="">Oct 28 21:23:30 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[52010]<br class="">Oct 28 21:23:39 ip-10-0-16-8 charon: 04[IKE] sending keep alive to AA.AAA.AA.A[20274]<br class="">Oct 28 21:23:39 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[20274]<br class="">Oct 28 21:23:50 ip-10-0-16-8 charon: 03[IKE] sending keep alive to AA.AAA.AA.A[52010]<br class="">Oct 28 21:23:50 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[52010]<br class="">Oct 28 21:24:10 ip-10-0-16-8 charon: 12[IKE] sending keep alive to AA.AAA.AA.A[52010]<br class="">Oct 28 21:24:10 ip-10-0-16-8 charon: 10[NET] sending packet: from 10.0.16.8[4500] to AA.AAA.AA.A[52010]<br class=""></font><br class="">The two tcpdump files attached. I’d appreciate any help.<br class=""><br class="">Thank you,<br class="">John<br class=""><br class=""></body></html>