> > the O UDP checksum proposal obsoletes all the today deployed nodes > > which check them (so all hosts I know and perhaps a lot of routers too) > > OK, so what are the other options for encapsulating a packet in a IPv6 > packet?
Um, surely, routers are not specified to validate layer-4 checksums for transit traffic?!? Let's look at this another way? As I understood it, UDP 0 would be used by LISP encapsulating/decapsulating devices. If some random (non-LISP encap/decap) host by mistake received a 0 UDP packet, it would be dropped, which should do no harm. In practical terms, only LISP encap/decap devices would need to be modified to accept 0 UDP packets under some specific rule / circumstance, as an exception to the general rule. The only thing which would prevent this would be one of conformance to the letter of the original spec, which apparently bans 0 UDP checksums. So what's so bad about that? Regards, - Håvard -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
