Subject: Re: IFT_OTHER is suitable for GRE?
To: Hitoshi Asaeda <>
From: Christian E. Hopps <>
List: tech-net
Date: 11/30/1999 08:45:48
Hitoshi Asaeda <> 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.