All   I have spent a few hours to test this function but failed to pass the traffic when MX65 is in L2 mode   Set up   MX65 is connected to the ISP router which provides NAT   VPN is established successfully each time.    No traffic when MX65 is in Passthrough or VPN Concentrator mode   it works fine when MX65 is in Routed mode.   No other changes. It is confirmed that just the mode is cause of it.   Do I miss any setup to get it work in Passthrough or VPN Concentrator mode?   I am testing the devices.    ISP router has public IP at WAN end. ISP router has private IP at LAN end - 192.168.1.1/24 MX65 has static IP at uplink port -192.168.1.3/24 , Gateway 192.168.1.1   All devices are working fine behind MX65 for internet.    Only devices connected to VPN doesn't work.    Test device is IOS    Port forwading is setup correctly as IOS can establish    The remote device can be seen in client list as online client VPN     ... View more