broadcast udp packets ...

[Don Lewis]

On 11 Jul, Wes Peters wrote:


> What we observed on our embedded system is the packet gets sent on all 
> attached interfaces, with dest IP 255.255.255.255, and a src IP of the 
> local address that has the default route.  If there isn't a default 
> route, sending to 255.255.255.255 fails with "no route to host."
> 
> This is bogus, so I propose to change it to a special case, where 
> packets sent to 255.255.255.255 will be sent on each attached 
> interface, with src IP of the interface "primary" address.  Does this 
> sound reasonable?  Should it work without a default route?  (I think it 
> should, the special case of the all-call broadcast shouldn't even go 
> into rtalloc.)

This sounds good.  I think it should work without a default route.