Hello,
Could someone please help me understand why do we really need 2 interfaces at both ends of a GRE tunnel?Once we create a virtual tunnel interface, why is that interface not used as a source interface? Why we need to use another interface as ...
Thank you for explaining that.However, as you also mentioned, a loopback can also be used as source interface. I wonder how and why is loopback used for this instead of a physical interface. It is also a logical int just like a tunnel int. How does i...
