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

Format timestamp from mysql
When I tried this:
Code: date("m/d/Y H:i A", $row['timestamp'])
I got 12/31/1969 18:

Logic question
im wondering what's the best method to do the above list:

it is for alliance @ MMORPG game

How to create a static html menu from a database
Hi,

I have built a small cms which allows me to create simple html pages and then upload them

I think i'm using the syntax incorrectly
Hi Everyone!

I'm new to this forum and a newbie with PHP - I'm glad I found this site - I hop

Basic Question about Threading and PHP...
I have a page that I am working on and it is taking several hours to process. The basics of what th

Locking mysql tables with php
Hi

BACKGROUND:
I have multiple instances of the same php script running in a WAMP environ

getting a website's source code as a variable? How?
Hey guys, is there any way for me to get the source code of a website as a variable for me to work w

Writing Windows Device Drivers with C
Yes: one of the nice features of C is void*. You can put anything there and get anything out. Very

Can't shake the "Warning: include()" error
I've just uploaded my site to a new server and where I have PHP include tags in my HTML, the browser

Query output more than expected
$query=mysql_query("SELECT * FROM players, communities, divisions WHERE dob BETWEEN '{$start_da