UDP Broadcast Problem

[Alex Tweedly]

Goldman David wrote:

> I am attempting to send out a UDP Broadcast with the following script:
>
> on mouseUp
>   put "255.255.255.255:5000" into theIP
>   open datagram socket to theIP
>   write "xx" to socket theIP
>   put the result
>   close socket theIP
> end mouseUp
>
> However what I get is: "error sending datagram", Further the  
> openSockets shows that 255.255.255.255:5000 is open.
>
Your script (copy/pasted) works OK for me, on WinXP, 2.6.1  (and the 
packets are received OK both on the same machine and another on the 
network). Unfortunately, I have no Mac here, so can't try that.

> My packet sniffer (MacSniffer) shows no activity - i.e. it really  
> doesn't seem to be sending anything.
>
> If I change the address to anything other than 255.255.255.255 - say  
> 0.255.255.255 - something happens.
>
> Any idea why I can't send out the broadcast?
>
Firewall ?
Unprivileged account ?

I'm not much of a Mac user, so don't know what else to suggest ...

-- 
Alex Tweedly       http://www.tweedly.net



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