@adamhotep @ryanc Huh. I assumed I have support for that. My first attempt, I was ssh'ing from a modern RHEL host that I was ssh'd to via securecrt. I got a lot of
"▌▎▙▙▆▆â–" looking stuff (some of it blinking). Using crt out to ansi direct from my machine via securecrt gets a key exchange error. And going from a plain vanilla putty on my local machine, I see key exchange happening in my packet capture and then nothing.
What the hell, computers? Letting the thinking sand talk to other thinking sand may have been a bad idea.