Martin Duke COMMENT (1) (2)

[vixie]

(1) I support Rob's DISCUSS (and Paul's comment) about SHOULD/MAY. "do it
unless the OS makes it impossible" is a typical use of SHOULD.

(2) Section 3.1, R1 says that responders SHOULD omit the fragment header. Under
what circumstances would it be reasonable to keep it?

[paulwouters]

(1) was addressed.
For (2), it was rephrased but the issue still stands. I personally cannot think of a good reason? Maybe if you know TCP seems discfunctional? In general, this draft moves us from MAY to SHOULD NOT. I think an update to MUST NOT could be in the form of a bis document after some more experience with these updated settings? (again, personally I would be ok with a MUST here and for the ipv4 DF bit)