Github user rhtyd commented on the pull request: https://github.com/apache/cloudstack/pull/872#issuecomment-217344487 @jayapalu I spent several hours testing this PR, my conclusion is that it cannot be used for production usage yet and need more tweaking; - We should consider installing strongswan to 5.x using wheezy-backports, while building template, we can do: `apt-get -t wheezy-backports install strongswan` - NAT-ed clients need to be supported (those clients which are not on a public IP but behind a NAT), I tested with Windows 10, OSX's default L2TP client, Android's L2TP client -- all of them failed for me. Ubuntu 16.04 has issues with strongswan NetworkManager integration so I could not test using that. I would expect the VPN replacement to allow users to use all of these clients/OSs in both NAT-ed, double NAT-ed and non NAT-ed cases. Our test cases should cover VPN access usage from clients on: Windows 10/8/7, OSX and Linux (NetworkManager with l2tp or strongswan-nm), and optionally for Android and iOS phone l2tp clients. - I tried to fix the NAT issues, but I could not figure the configs out - I could not test site to site VPN or VPN customer gateway features :-1:
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