Finding the zmm220 default telnet password is trivial; understanding the risk is vital.
Shipping a product with the ZMM220 reference design?
opkg update opkg install dropbear /etc/init.d/dropbear enable /etc/init.d/dropbear start zmm220 default telnet password
Since Telnet sends data in plain text, it is highly recommended to disable it or change the default password immediately after setup to prevent unauthorized access. how to change the Telnet password through the CLI once you are logged in? Not working with new device - guidance needed #14 - GitHub
Access denied.
For a common ZMM220-based smart gateway, the default login is often:
If the above password does not work, try these standard factory defaults: (Leave blank) administrator Williams AV How to Find Your Specific Password Finding the zmm220 default telnet password is trivial;
Regarding the default Telnet access for the ZMM220: