Having problems with limited broadcast

[Bruce M. Simpson]

Peter Steele wrote:
> ...
> It's really a matter of time. We didn't anticipate limited broadcast
> being broken in FreeBSD and we're scrambling to come up with a solution.
> To be quite frank I haven't done anything with IPv6 before so it would
> be more research to get up to speed on this option. It seems our best
> option is scapy, which unfortunately I also haven't used before...
>   

It's not broken -- it has always been this way in all BSD derived 
networking stacks.

Limited broadcast addresses just don't contain any information about 
where the datagram should go, and this is the case in all other 
implementations. They are similar to multicast addresses in that regard.

Linux has a knob SO_BINDTODEVICE which is partly there to workaround 
this problem, however it isn't the ideal semantic fit.

The folk who point out that link-local addresses could be used, have an 
interesting suggestion which might work for you.

thanks
BMS