I wrote a simple script to scan my local ports and noticed that when I ran the Proto as 'tcp' the script returns the same results as nmap but when I change the Proto to 'udp' it returns results that ALL ports are open and of course nmap's results do not match. Is this a known issue?

The following is a snippet of code I use to check if the cosket was successfull and return open results. 

   if(IO::Socket::INET->new(PeerAddr => $ARGV[0],
                            PeerPort => $port,
                            Proto => 'udp')) {
      print "port: $port is open!\n";
   }

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Is there something wrong with this check that would cause tcp to run fine but not udp?

In reply to IO::Socket::INET issues? by Anonymous Monk

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