Date: Fri, 11 Jul 2003 17:00:54 -0700 From: Wes Peters <wes@softweyr.com> To: Don Lewis <truckman@FreeBSD.org> Cc: freebsd-net@FreeBSD.org Subject: Re: broadcast udp packets ... Message-ID: <200307111700.54922.wes@softweyr.com> In-Reply-To: <200307112109.h6BL9mM7018764@gw.catspoiler.org> References: <200307112109.h6BL9mM7018764@gw.catspoiler.org>
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On Friday 11 July 2003 14:09, Don Lewis wrote:
> 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.
I forgot to say "on all interfaces which have broadcast enabled," which
effectively weeds out the loopback interface amongst others.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters wes@softweyr.com
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