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

Find current logon time
Hi,
in my sql script i want to query and find out the logon time of the current session.
<

Generate PDF
Hi guys,

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

Change Age automatically
hi guys . im new to php , is it possible to change age value in mysql automatically when year change

login form can you find my error?
registrationform.php seems fine send data to registration.php
registration.php seems fine checks

IP Logger for Voting Script
Can anybody help me place an IP logger into my voting script?
I know that maybe it is not as secu

How to show next and prev records
Hi all,

Sorry if this is simple, i'm very new to php, well, any programming language actually

losing session vars when arriving from an email link
Hi,

I've got a confirmation script made that sends an email with a link for a user to confirm

how to populate a drop down box
Hi buddies!

PROCEDURE DOWNLOAD_REPORT_FORM (report_name varchar) is begin DOWNLO

problem with sql querry in php script
Hello guys,

What I want to do is I want to read out a csv file and then but te conent ot the

Why doesn't this work? (SSH2)
This is my script:

Code: <?php
$connection = ssh2_connect('213.251.167.109', 22);