I'm not allowed to use any CPAN packages
First, Net::Telnet is part of the Perl core (unless you are using a very old version), so it is pure Perl. Secondly, if you are not permitted to include separated modules into your application, you can just steal the code from CPAN and paste it into your code.

Maybe you should put on top of this code the comment: 

# Message to my supervisor: No, I did not steal this
# code from CPAN. Oh no, this is not something I would
# ever dare to do.

[download]

-- 
Ronald Fischer <ynnor@mm.st>

In reply to Re: perl+telnet(with out Net::Telnet) by rovf
in thread perl+telnet(with out Net::Telnet) by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.