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I was running 10.6.8 and couldn't login to any L2TP VPN server (tried 2 completely different ones) using the built-in VPN client. Upgraded to 10.7.2, the same issue. It doesn't seem that the machine is even trying to connect to the VPN server (at least Little Snitch doesn't show anything).
What I can see in /var/log/ppp.log is:
timestamp : L2TP connecting to server 'vpn.example.com' (xxx.xxx.xxx.xxx)...
timestamp : L2TP: cannot connect racoon control socket: No such file or directory
where xxx... is the ip address of the VPN server.
in /var/log/system.log:
timestamp: computername configd[14]: SCNC: start, triggered by SystemUIServer, type L2TP, status 0
timestamp: computer pppd[454]: pppd 2.4.2 (Apple version 560.13) started by username, uid 502
and then the 2 lines from ppp.log
What is not causing it:
the router - I can connect to the same VPN servers from another Mac and iPhone that are behind the same router
the OS X firewall (I think) - the same issue persists with the firewall off
Little Snitch - the same issue persists with LS off and when on, it doesn't even show any attempt for outgoing connection (and the other Mac has LS too, which shows attempt to connect to port 1701)
What it could be -- there was Cisco Anyconnect client on the machine, which was uninstalled. It is possible that somehow it messed up IPSec.
Any idea what may be going on?
Alternatively -- are there any other L2TP/IPSec clients for OS X?
I've used this product in the past. Follow it's instructions for OS X and replace the server part with the one you're using. If that doesn't work, it could very possibly be Cisco Anyconnect. Also, you shoul dhave your own cert, or skip that step. http://www.giganews.com/vyprvpn/setup/mac/l2tp.html
– skub – 2012-01-16T22:01:47.853The issue is not the settings, these work on another machine and iPhone. There isn't a certificate, just username, password and secret. – lupincho – 2012-01-16T22:09:32.797