waste of bandwith?

[kasperd]

You explicitly included it in your list of subtracted values from 1280 to arrive at 1208.

I never said anything about subtracting the IPv4 header size from 1280.

Read your message.

I have read it. Have you?

[snarked]

You listed it among the other subtractions.  That was clear.  Your computation implied comparing 1280 to 1208, not 1300 to 1208.

[kasperd]

Your computation implied comparing 1280 to 1208

I was not implying that. And if you look at the other numbers in my comment, it should be clear I was implying no such thing.

Bottom line is, when you were saying it was wrong, you were referring to your own assumptions, and not what I had written.