Hi,
probably you can use a empty line has a prompt in the Net::Telnet

$t = new Net::Telnet (Prompt => ’/^$/’);
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But, if you have empty lines in the command output, you'll get a truncated output. In that case you can use the waitfor method.

And to better understand the interaction between the client e server, use the input_log and the dump_log, it's a great tool for debug.