Hitoshi Asaeda <asaeda@yamato.ibm.co.jp> writes:

> Current implementation of GRE uses IFT_OTHER type in if_gre.c.
> This is not good for permanent use, because it's so ambiguous and it
> might be used with other interfaces, I feel.
[...]
> How do you feel this?
> IMHO, IFT_PROPVIRTUAL may be better? (Sorry, if there are some tipical
> meanings of this one.)

Why not IFT_GRE?  I think the type should tell you everything you need
to know to e.g., examine frames using bpfilter.  IFT_PROPVIRTUAL seems
just as ambiguous as IFT_OTHER in this sense.

Chris.