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

Problem writing URL into database
How would I write this into the database?

<?php echo "http://".$_SERVER['SER

Security Exception on pages using AJAX
I am getting the exception: attempted to perform an operation not allowed by the security policy on

Shuffle Array
Hi,

I am writing a script for a game that needs players to randomly be assigned a target (ano

BB_Code error
I'm having a problem with a custom built function and keep getting this error:


Warning: M

Multi-image upload problems
Lets see if I can get some help on this one. Can anyone show me what I am doing wrong here. I'm just

Page not Loading After Test
Hey All

It seemed that an inlcude statement wasn't working for some reason, so I tried a more

Help on query replacing the date
Hi Pals,

i want to replace the current date in a column to some value say C or D or any n

getting most records by count
Code: [Select]<?php

$connect = mysql_connect("localhost","dam

Database connection failure
Hello All,

I am trying to create new connection to Oracle DB 10.1,
I could not see a

array_combine() trouble w/csv file
I have a problem with a piece of code I wrote to import some records from a csv file into mysql. I h