rxecho(8) on Linux
The text 2606457e1b75, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
Route AX.25 packets between ports transparently.
Flags it lists
-
-l -
-v