@@portfwd_opts = Rex::Parser::Arguments.new(
    '-h' => [false, 'Help banner.'],
    '-i' => [true,  'Index of the port forward entry to interact with (see the "list" command).'],
    '-l' => [true,  'Forward: local port to listen on. Reverse: local port to connect to.'],
    '-r' => [true,  'Forward: remote host to connect to.'],