How to forward ports for VPN IKEv2?

Question

linux

Hey! I want to make a home vpn IKEv2 server on ubuntu
18.04 to connect to it from
macos Router forwarded ports 500,1701,4500 - UDP to 192.168.1.184 Can't connect to vpn via DDNS, says the server is not responding. At the same time, connecting directly to 192.168.1.184 works fine . Also, for the test, I raised the http server to 80, forwarded the port for it and it works via DDNS . Tell me, please, where could be the problem? Perhaps I did not forward all the ports or something needs to be added to the firewall settings? Thank you!

Answer 1

Turn on the logs on the bootloader and see if the connection comes in, if at least the first phase passes. Also forward the ESP protocol. Well, of course, NAT-T is allowed in the settings - you will need it.

Answer 2

It also seems to me that the problem is in the IPsec settings on the server and the NAT=yes setting is missing.