On 18/11/2008, at 11:46 AM, [1]Robert.E.VanOrmer@frb.gov wrote: We have been delegated a /48 by ARIN. We then went out to procure a native IPv6 T1 from Verizon (*mainly for testing*). We requested that Verizon route the /48 that we were provided by ARIN. Verizon's response was "they do not route network smaller than a /32". I wish them good luck in reaching the DNS root servers. They are in "critical infrastructure" space, which is a single /32 with /48s assigned[1] from that - or something like that. IXP space was mentioned.. I'm not sure that needs to be globally reachable. Maybe to stop uRPF breaking ICMP messages if routers on the exchange respond from their interface address.. though.. I'd prefer to make my routers respond from loopback or something. -- Nathan Ward [1] Maybe I mean allocated, whatever. -- Nathan Ward References 1. mailto:Robert.E.VanOrmer@frb.gov