GRE tunnels: attempt to create of an IPv4-only GRE-tunnel ( by leaving empty "Local IPv6 tunnel address." and "Remote IPv6 address address.") results in "A GRE tunnel with the same IPv6 tunnel network is already defined.".
Plus Target Version:
-> This only occurs when creating A 2ND SUCH TUNNEL FOR THE SAME "Parent Interface"
-> The "GRE-tunnel-Creation-page I am referring to, is under Menu "Interfaces" -> "Assignements" -> GREs-tab -> "+ Add"
-> This was not the case in earlier versions of pfsense; we were able to define GRE-tunnels this way in the past just fine.
-> I got this error with version 2.5.1. 2.5.2 is indicated below, because 2.5.1 isn't selectable.
Updated by Viktor Gurov about 2 months ago