The SSH implementation on that device seems crippled. It doesn't perform authentication using the SSH protocol. Instead it asks for the password when a shell is started on some SSH channel.

Net::OpenSSH will not handle authenticating against such systems. Though, if all you want is getting the motd, the following code may work: 


my $ssh = Net::OpenSSH->new($host, user => $user, timeout => 30);
my $motd = $ssh->capture({stdin_data => "$password\n\n4\n",
                          stderr_to_stdout => 1});
print $motd;

[download]

Alternatively, just use Expect.

In reply to Re: Net::OpenSSH to ups appliance by salva
in thread Net::OpenSSH to ups appliance by natxo

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