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

Hi,

On Fri, Aug 31, 2001 at 03:58:04PM +0300, Pekka Savola wrote:
> On Fri, 31 Aug 2001, Fearghas McKay wrote:
> > Please send any comments to the LIR-WG list <lir-wg at ripe.net>
> >
> > 5. Other Considerations
> > -----------------------
> >
> > It should be noted that ISPs usually do not announce address space
> > used on the IXP mesh itself to their peers. That means the address
> > space assigned under this policy is likely not to be routable
> > globally.
> 
> Care to explain how traceroute through these IX's is supposed to work, if
> the node performing traceroute, ping, or whatever, is not a small-scale
> customer (ie. default route) of the IX participants?

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), but reachability of the hosts
*behind* the IX is not a problem.

Whether it's desireable to be able to traceroute *to* an IX address is 
debateable (but that's not different from today), this is what wouldn't
work.

Gert Doering
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