I do prefer the latter as well (and yes, happy to remove the restriction), but I don't feel very comfortable pretending that tunneling wouldn't happen.
Of course people will tunnel stuff. But will they all tunnel it the same way, in which case a standard could be useful, or will they each have their own hacks? Given the vagueness about how you can tell that something should come out of the tunnel back into the envelope, it sounds more like the latter.
Regards, John Levine, johnl@xxxxxxxx, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. http://jl.ly _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf