Hi Joseph, On 4/26/11 7:39 PM, Reddy, Joseph wrote: > > Hi Thomas > > Since RPL protocol is intended to operate in networks with > constrained devices and lossy, low-bandwidth links, there is a desire > to not require IP-in-IP tunnelling that is usually used for inserting > routing headers. This is detailed in the draft > http://tools.ietf.org/html/draft-hui-6man-rpl-headers-00 but I > realize now this draft expired recently. Perhaps this can be revived > as it is helps to improve the applicability of RPL protocol.
That draft has been replaced with draft-ietf-6man-rpl-routing-header. I suggest that you take a look at that draft (currently being reviewed by the IESG), especially section 4. Regards, Brian > > -Joseph > > -----Original Message----- From: Thomas Narten > [mailto:[email protected]] Sent: Tuesday, April 26, 2011 5:57 AM To: > Reddy, Joseph Cc: Jonathan Hui; '[email protected]' Subject: Re: Comment > on rpl-routing-header draft > >> In the most common usage of this header, the border router inserts >> a source routing header with the full set of intermediate nodes >> before forwarding it towards the destination within the RPL >> network. > > and then. > >> Yes, we do not use IP-in-IP tunneling and instead simply insert the >> RH head= er in the packet. > > What specification are you following that says do this? > > Routing headers (as designed and specified) are inserted by an > originating node (whether the original sender or a tunnel entry > point). If you have a middle node insert this header to an existing > packet, no suprise things are not going to work. > > Thomas > -------------------------------------------------------------------- > IETF IPv6 working group mailing list [email protected] Administrative > Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
