The latest version 15 comes with a telnet client, which is a strange issue!

[worm]

I use the latest version 15's built-in telnet command to run it on the terminal: telnet 192.168.1.1. The server is Huawei's optical modem. When entering the login interface, it will automatically enter a long string of rxvt and repeat it continuously! Causing it to be unusable at all! Has anyone encountered it before? Please find attached a screenshot.

[gadget42]

what is the model number and firmware version of the optical modem

[Rich]

Hi worm
You probably need to enable telnet access first. I suspect you
first need to connect to the modem with a web browser through
your LAN (192.168.1.1) and login. You will need to search online
for your model number to find instructions on logging in and
configuring the modem.

[worm]

what is the model number and firmware version of the optical modem

It's okay with this, I can log in normally with Putty!

[worm]

Hi worm
You probably need to enable telnet access first. I suspect you
first need to connect to the modem with a web browser through
your LAN (192.168.1.1) and login. You will need to search online
for your model number to find instructions on logging in and
configuring the modem.

Guangmao has already opened the telnet port, and if you use Putty, you can log in normally. Just using the system's built-in telnet doesn't work.

[gadget42]

what is the model number and firmware version of the optical modem

It's okay with this, I can log in normally with Putty!

what are the performance specifications of that modem? it seems really fast.

[gadget42]

Guangmao has already opened the telnet port, and if you use Putty, you can log in normally. Just using the system's built-in telnet doesn't work.

guangmao is big https://gmpapermachine.com/