After searching for a while, I came up with this solution. First, we create a dummy socket which has the "PeerAddr" points to a reserved IP address. In my case, I tested with 192.168.0.0. Then use "sockhost" method to get the local IP address which is 192.168.1.6. Next we bind the "HostAddr" to the result of "sockhost". So that when the "PeerAddr" is set to 255.255.255.255, it will be the same as 192.168.1.255.

Here is the code:

sub localIPAddress {
    my $socket = new IO::Socket::INET (
        Proto       => 'udp',
        PeerAddr    => '192.168.0.0',
    );
    my $localAddress = $socket->sockhost();
    $socket->close();
    return $localAddress;
}

my $socket = IO::Socket::INET->new(
    Proto => 'udp',
    Broadcast => 1,
    LocalAddr => localIPAddress(),
    LocalPort => 8888,
    PeerAddr => '255.255.255.255',
    PeerPort => 9999,
) or die "Could not create socket: $!\n";

[download]

In reply to Re: Broadcast when host machine contains virtual interface by Anonymous Monk
in thread Broadcast when host machine contains virtual interface 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.