I have 2 Vyos routers in my network. One of them is doing the heavy lifting (BGP, OSPF, etc.) - let’s call it the primary and the other (secondary) hasn’t really been implemented yet. The secondary router is directly connected to the primary and I have an L2TP tunnel running on it and can connect to it using the Microsoft client on my PC and also the android client on my Galaxy S5. From there, I can see the primary. All good so far.
When I copy the IPsec/L2TP configuration to the primary router (changing the IPs, etc.), neither of my clients will register. What I’d like to know is what tools are available within Vyos and Linux that can help me troubleshoot this? VPNs are not my forte and I’m a little lost.
Thanks in advance for any tips you have.