using docker container built from here https://github.com/jwetzell/docker-guacamole, adding ping and ssh client. on arm64

the container uses libssh2 which fixed a similar problem last year with  AES-GCM, but it is using the libssh2 with the fix (1.11.0)

when I use guac I get 

SSH handshake failed

the docker container is running on the host target of the ssh

manual ssh from the container to the host works. 

I didn't see any similar issues open or closed.