L2TP/IPsec on Android phone

Hello everyone !

I am using VyOS configured for L2TP/IPsec. I am trying to establish VPN connection but after 10 seconds the connection is disconnected.

Here is my environment as follows:

If I use Windows 2003 server instead of VyOS, L2TP/IPsec is established. That means FW policy is correct.

I am using vyos-1.1.5-i586-virt.iso.

and here is some compornent version:

Here is TCPDUMP result:

Here is /var/log/messages:

Here is the configuration:

I suceeded PPTP and L2TP connection. Only L2TP/IPsec is not success.

Does anyone have experience to connect Android phone with L2TP/IPsec ?

Best regards,

Hi again,

Does anyone know if VyOS supports nat-transport mode ?

Quoted from Frequently Asked Questions (FAQ) :: strongSwan Documentation