The OLT cannot log in to the ONT through Telnet

Hello, friend!

Yes. Generally, you can use the OLT to log in to the ONT through Telnet.

If you cannot log in to the ONT through Telnet, the possible cause is that the telnet source IP address and the temporary telnet IP address of the ONT are in different subnets.

You need to configure the system source telnet loopback 0 and loopback 0 IP addresses to 172.X.X, which should be that the loopback 0 IP address is not in the same subnet as the temporary IP address of the ONT.

Run the following command to delete the Telnet IP address from the OLT:

undo sysman telnet source telnet

Thanks!