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L2TP-VPN Server Not Responding

Hi All,

I just installed OSX Lion Server and configured my VPN with the default settings. I am doing my inital testing of the server on my internal network (so there should be no firewall/port forwarding issues. It seems that the server is not responding. When I try logging in the client error message I see is:


The L2TP-VPN server did not respond. Try reconnecting. If the problem continues, verify your settings and contact your Administrator.



In the server logs I see:

Jan 29 17:31:23 servername vpnd[6120]: Listening for connections...

Jan 29 17:31:23 servername com.apple.ppp.l2tp[6120]: 2012-01-29 17:31:23 PST Listening for connections...

Jan 29 17:31:44 servername configd[23]: SCNC: start, triggered by System Preferen, type L2TP, status 0

Jan 29 17:31:44 servername pppd[6134]: pppd 2.4.2 (Apple version 560.13) started by username, uid 1025

Jan 29 17:31:47 servername pppd[6134]: L2TP connecting to server '192.168.101.145' (192.168.101.145)...

Jan 29 17:31:47 servername pppd[6134]: IPSec connection started

Jan 29 17:31:47 servername racoon[153]: Connecting.

Jan 29 17:31:47 servername racoon[153]: IPSec Phase1 started (Initiated by me).

Jan 29 17:31:47 servername racoon[153]: IKE Packet: transmit success. (Initiator, Main-Mode message 1).

Jan 29 17:31:47 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:31:50 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:31:50 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:31:53 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:31:53 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:31:56 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:31:56 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:31:57 servername pppd[6134]: IPSec connection failed

Jan 29 17:33:35 servername SCHelper[5775]: active (but IDLE) sessions

Jan 29 17:33:35 servername SCHelper[5775]: 0x10bf0a3a0 {port = 0x4463, caller = System Preferen(5746):com.apple.preference.network, path = /Library/Preferences/SystemConfiguration/preferences.plist}

Jan 29 17:34:02 servername configd[23]: SCNC: start, triggered by SystemUIServer, type L2TP, status 0

Jan 29 17:34:02 servername pppd[6180]: pppd 2.4.2 (Apple version 560.13) started by username, uid 1025

Jan 29 17:34:05 servername pppd[6180]: L2TP connecting to server '192.168.101.145' (192.168.101.145)...

Jan 29 17:34:05 servername pppd[6180]: IPSec connection started

Jan 29 17:34:05 servername racoon[153]: Connecting.

Jan 29 17:34:05 servername racoon[153]: IPSec Phase1 started (Initiated by me).

Jan 29 17:34:05 servername racoon[153]: IKE Packet: transmit success. (Initiator, Main-Mode message 1).

Jan 29 17:34:05 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:34:08 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:34:08 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:34:11 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:34:11 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:34:14 servername racoon[153]: IKE Packet: transmit success. (Phase1 Retransmit).

Jan 29 17:34:14 servername racoon[153]: IKE Packet: receive failed. (malformed or unexpected cookie).

Jan 29 17:34:15 servername pppd[6180]: IPSec connection failed



Everyone seems to mention that to have VPN working properly you need to have DNS and DHCP set up. I believe that I already have that set up and working. I have already set up my machine for Web Services, Open Directory, DNS, DHCP, Mail, and Software Update. This is one of the final issues I am having. Any help/advice would greatly be appreciated. Thanks.

Mac mini (Late 2009), Mac OS X (10.7.2)

Posted on Jan 29, 2012 5:48 PM

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L2TP-VPN Server Not Responding

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