Hello Alexander
The error message you’re getting means that the virtual-template1 was initially created as a Serial type and hence, it can’t be changed to a Tunnel type directly.
To resolve this issue, you need to create a new virtual template with a different number, for example, int virtual-template2 type tunnel. If you’re not using the original virtual-template1, you could also delete it and recreate it with the tunnel type. Here’s how:
- First, remove the original virtual template with the command:
no int virtual-template1. - Then, create a new one with the tunnel type with the command:
int virtual-template1 type tunnel.
I hope this has been helpful!
Laz