Francis, On Mon 26 Sep '05 at 10:46 Francis Dupont <[EMAIL PROTECTED]> wrote: > > In your previous mail you wrote: > > Couldn't find this being mentioned before, but I think it would be > preferable > if this section: > > ,---- > | 3. Routing Considerations > | > | Keyed Hash Identifiers are designed to serve as identifiers rather > | than locators. Therefore, routers SHOULD NOT forward any packets > | containing a KHI as a source or a destination address. If the > | destination address is a KHI but the source address is a valid > | unicast source address, an ICMP Destination Unreachable, > | Administratively Prohibited message MAY be generated. > | > | Note that while KHIs are designed to be non-routable at the IP layer, > | there are ongoing research efforts for creating overlay routing for > | these kinds of identifiers. For example, the Host Identity > | Indirection Infrastructure (Hi3) proposal outlines a way for using a > | Distributed Hash Table to forward HIP packets based on the Host > | Identity Tag. > `---- > > was rewritten a lot more like RFC3849 (IPv6 Docu Prefix), Section 3 > Operational Implications. > > => IMHO you'd like to have a more concrete operational recommendation.
Yes, but I'd meant as opposed to a mandate that "routers SHOULD NOT forward"... I'd think that most routers currently only know about link-local, multicast, unspecified and loop-back addresses in the forwarding path. RFC3849 doesn't mention routers, i.e. it's perfectly valid for a router to forward a packet with a src/dst within the prefix. The onus is on the operator to filter the prefix. A. > > And, for example, added to: > http://www.space.net/~gert/RIPE/ipv6-filters.html > > => this can be done only with the real prefix... > > Thanks > > [EMAIL PROTECTED] > > PS: the text from RFC 3849 is: > > 3. Operational Implications > > This assignment implies that IPv6 network operators should add this > address prefix to the list of non-routeable IPv6 address space, and > if packet filters are deployed, then this address prefix should be > added to packet filters. > > This is not a local-use address prefix, and the filters may be used > in both local and public contexts. > -- Alun Evans IOS Software Engineer, cisco Systems. http://www.cisco.com/go/ipv6/ -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
