Here's an ugly script to do zmodem over an SSH connection: https://github.com/ThomasHabets/ssh-scripts https://github.com/ThomasHabets/ssh-scripts Should work

Here's an ugly script to do zmodem over an SSH connection: https://github.com/ThomasHabets/ssh-scripts https://github.com/ThomasHabets/ssh-scripts Should work through multiple SSH hops, and not giving the hassle of using scp through those same sets of hops.