Port-Knocking initiated by ROS

RouterOS General
1

Hi,

I built a small traver-router which connects to my home-router via multiple VPNs. Works great!

But I dont know the public (source) IPs of the Hotels I am in. So, I could create random-ports for the VPNs (and hope no bad guy is doing a full port-scan) or I could use my (already implemented and working) port-knocking. But in this case, the travel-router must knock on my home-router. How can I implement this for TCP and UDP with ROS? Is there a tool to knock?

2

http://forum.mikrotik.com/t/portknocking-by-script/102274/1

3

Forget port knocking, if you have a home publicly accessible WAN IP address or can forward ports on the upstream ISP modem/router, use wireguard instead.