Andrei_Mazilu  Freshman Member

Thank you Stanley for your help everything works fine now.

I don't think is wrong if the message is received and the only thing that stops is because of a proposal mismatch, and the key group is the same.

The port forwarding config is made on ISP Router and i have made that NAT Rule also

Thanks for helping me. I have done everything like that including the NAT RULE Now i receive a proposal mismatch and the preshared key match both sides (Client and server) Maybe is the config that first must be DES and not 3DES? I'm trying to connect from mac and windows machines. How is IPSec_VPN zone configured.…

It also doesn't work. That is my config maybe i have an misconfiguration

Yes that's my topology and works for VPN Server on the Synology. I've opened the ports that L2TP needs and everything works for the NAS Server.

Thanks for the answers. I have already a VPN server but is on a Synology NAS and i think the Router is fowarding IKE traffic. My config is ROUTER(ISP) --->Firewall ----> SWITCHES I've captured the traffic between client and VPN and i have a payload malformed. I've been trying with both mac and windows computers. On the…