Broadcast?

[RCS]

Thanks Dar.

I thought that is what I did (for UDP), and MC went into oblivion for about
2 minutes (and didn't broadcast). I will try it again...

open datagram socket to "255.255.255.255"

This works for other UDP IP addresses, but maybe this is incorrect?

JR

> Message: 6
> Date: Sat, 7 Jun 2003 16:49:39 -0600
> Subject: Re: broadcast?
> From: Dar Scott <dsc at swcp.com>
> To: metacard at lists.runrev.com
> Reply-To: metacard at lists.runrev.com
>
>
> On Saturday, June 7, 2003, at 04:30 PM, RCS wrote:
>
> > Has anyone been able to do a broadcast message using TCP sockets or
> > UDP? How
> > did you do it?
>
> No broadcast for TCP.  Use UDP.
>
> Use 255.255.255.255 as your ip destination address in open.
>
> Or, better yet, use the subnet broadcast address.  For example if your
> subnet is 10.50.0.0 with mask 255.255.0.0 then use 10.50.255.255 as
> your broadcast address.
>
> I have seen my OS X translate 255.255.255.255 to a subnet broadcast on
> my primary adaptor.  My XP (or was it W2K?) did not.  Perhaps there
> will be a difference in behavior only if there is more than one subnet
> on the LAN.  I'm not sure what happens when you have more than one
> adaptor and you use 255.255.255.255 as the address.
>
> Accept as usual (remember to close UDP these days).  Send as usual.  I
> don't know if the new ability to reply to UDP will work with
> broadcast--that would be cool.
>
> Dar Scott
> Mostly-Lurking Revolution User
>