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

Restricted access to sub-folder in iis6 doesn't work?
Basically I'm trying to add restriction to sub-folder (which contains pdf) in web.config for iis6 as

need help modifying script
Hi guys,

I'm fairly new to php and am having a bit of trouble modifying a script.

This

php/xmlrpc class issue
I am working on xml-rpc in php to start with.

I have a class that only has variables defined

PHP Code / Script To check weather the given email exists in a domain
Hi,

I want to implement the following in my web page

in sign up we will ask to enter u

Saving PHP output as a file
I wondered if anyone knows how to save the rendered output of a PHP script as a file?

I have

str_replace help
Hey there,

I'm a PHP newb, I'm having troubles with the str_replace function. I want to clean

records between 2 dates
Hello all,

I have a date tracked table which contains effective_start_date and effective

Pipe email to PHP - get mail adress from MySQL - send?
Hi all,

this is the challenge:

1) Our faculty at the college where I'm employed includ

Find occurences of unicode characters in string
I need to prohibit filenames with everything but English characters and numbers but regexp and strin

Ajax Issues - Update Panel / Timer. Intellisense doesn't know about them
Type 'System.Web.UI.ScriptManager' does not have a public property named 'UpdatePanel'. That is wha