UDP Multicast question

Posted on 16th Feb 2014 07:03 pm by admin

Hey,

Im not really in the know when it comes to network related programming and activities, i know the diference between TCP/UDP and have the jist of it all...

However one thing ive just been reading that i didnt know was that UDP supports multicasting a message to a given address within a range. Now i was just wondering is this restricted to local networks, or can this be done via the internet as well?

Using an MMO as an example, if someone in an area moved with this method you could just send out this one update to a broadcast group and everyone would get the updates, but the article only mentions its usage within local networks, so is there some restriction online to using this?

Your Answer:

Login to answer

Other forums

adding up might be solved tell us cheers.
i think i finally solved this anybody.

last time i was getting the wrong results.

Code

Formatting echo from database
So I have a database that stores First and last names, then echos them back to a website, as of now

Issues: PHP Forms -Clearing
I've tried looking online before actually asking for help, but I've been looking for about the past

Generate PDF
Hi guys,

I would like to know if there is a way to generate pdf when clicking on a link. In f

Curl & sessions PLS HELP
Hello,

I have a problem with curl and sessions and i will try to explain the best i could.

Strange Oracle Query problem
Ok So I have this PHP class that talks to a Javascript class that basically creates a table of infor

Adding meta tags under Zend FW
Hello there, recently has come to my hands the FTP of a website which is running under Zend, I would

why aint this working?
i have this code:

Code: $num = 250;
$count = ($num - $rcount);

echo $rc

Character Sets/Collations Stuff
Can someone please give me a check list of things I must do to setup all the charset stuff for my ph

PHP5/Zend 2.0 - Resources
PHP5 Snapshots
http://snaps.php.net/

ZEND 2.0 Feature Overview and Design (PDF File