[MAC] 解決Cisco VPN Client Error 51: 的問題

Cisco VPN Client 在MAC OSX中，用一用經常會出現
"Error 51: Unable to communicate with the VPN subsystem"
這時候，就打開Terminal吧
然後輸入

sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart

然後重開Cisco VPN Client就可以了

Reference : http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with.the.VPN.subsystem