Re: Interim Policy proposal for IPv6 Address Assignment Policy for Internet Exchange Points

For a traceroute *through* the IX you don't need the route to that /64. It might get filtered if you do RPF filtering (but multihomed customers usually don't, because it doesn't work), [...]

The less-strict "reachable-via-any" (I forget its exact syntax, but should be usable by multihomed sites) unicast RPF checking will however also break the traceroute if the /64 isn't announced as reachable in the DFZ. Regards, - Håvard