Hello, I have a scenario where I need a backup connection over LTE. The LTE connection has a private IPv4 from provider , and is subjected to change any time.
I have the LtAP from mikrotik, and I need to setup a VPN with dynamic routing to play together with a VyOS router.
Mikrotik behind NAT, dynamic IP.
VyOS has static public IP
I need dynamic routing (OSPF prefered).
What I have thought of, and does not meet my criteras are;
- OpenVPN does not work, because it uses only TCP.
- IPSEC with VTI interfaces does not exist on RouterOS
- Authorizing peer with "My-ID" works, but then I don't know how to use dynamic routing.
I don't know know if GRE interfaces will work when mikrotik side is behind NAT.
Any other options that works for with mikrotik and vyos?
So far my only option I know is to use an EdgeRouter instead, and create a link to the LtAP, because there both OpenVPN with UDP, and IPSEC VTI or Wireguard works just fine.