@prefetcher don’t forget null and undefined…

@onepict And yes, that image was from my LAN with a tcpdump just now. It is all Terry Pratchett on the wire, forever.,

@onepict Yeh, I thought "flagging NAT" was a cool ideas so endpoints can prefer non NAT routes.
The GNU was a no brainer.

@onepict Yes, we did that a while, but decided it actually adds overhead. Using in the Ethernet padding was not overhead, but stays for so long in the net, it fitted better, for me.

@onepict I had not read RFC1984, cool.

@onepict Nice. I have got really close to an RFC in my name. One day. But these are important subjects.

@onepict A couple. One was on using the IP "evil bit" to flag NAT traffic. We made FireBrick do that to help. Still has that option. Another was on padding for short Ethernet to use "GNU Terry Pratchett" as the padding data. FireBricks do that even now...