> >> Should (can) something like the following be added to the draft ?: > >> "Conformant implementations of IPv6 hosts and routers MUST not > >> provide a way to activate RH0 processing on the system." > > > > This is a very bad idea for two reasons:
i disagree with both, as shown below. > > 1. The IPv6 spec says that you MUST implement it, then having something > > else say you MUST NOT actually use it is just bad standards making we're going to have to amend the standard, to deprecate this feature. the bit pattern should be treated as unrecognized by all conformant implementations of the amended specification. there is no conflict here. > > 2. Maybe someone has a legitimate use for this, they should be able to > > do so if they want then let's define a new bit pattern that means what RH0 used to mean, make it experimental, and require that it be off by default on all conformant implementations of the new specification. > > This whole issue is blown WAY out of proportion: the BSD guys should > > not forward when forwarding is disabled, the router guys should > > disable source routing by default (for IPv4, too, please). Problem > > solved, bring on the next one. that won't solve this problem. (and those are not the problems with RH0.) > > If, at some later date, it turns out nobody uses this feature, rip it > > out of the next iteration of the IPv6 spec. this is the next iteration of the IPv6 spec. we're ripping it out $now. > > But please, let's not overreact. Compared to what we had to go through > > with directed broadcast amplification (smurf attack), this isn't much of > > an issue at all, even if you ignore that IPv6 uptake isn't above 0 in a > > statistically significant way yet. current deployment is only a percentile or so of what i'm worried about. -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
