Gif interfaces on local ip-addresses
The webfrontend limits the creation of gif-interfaces to one per local interface. I see no reason why. On the command line there is no problem to create multiple gif-interfaces on every local ip-address (not interface!). I think this limitation should be given up due to the fact that it is often needed to have more than one gif on an local ip-address.
What kind of use case do you have that requires multiple GIF interfaces on a subnet like that?
I wouldn't exactly call that something that is "often" needed.