From: Robert.E.VanOrmer@frb.gov Date: Mon, 17 Nov 2008 16:46:08 -0600
Are there any parties out there routing /48 IPv6 networks globally? I ran into a supposed Catch-22 with Verizon and IPv6 address space and was looking for clarification.
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". Fair enough... capacity planning for all the /48's would give a router a headache with today's hardware... so we requested address delegated from Verizon's larger block of addresses to be used for addressing. The response was that we could not receive new address space until we returned our ARIN provided address space... so in effect, go back and get a /32 from ARIN or give up on ever owning address space again.
ARIN claims they are seeing /48s routed, at least in their route tables. I have seen some new momentum on the allocation of /32's, don't know if that is in response to rules like this?? Would be awefully difficult for our organization to come up with the rationale to need 65K /48s internally to justify a /32.
Lots of people have /48s from ARIN and many are routed. The global IPv6 table currently has about 200 of them. Among those using /48s are ARIN and at least three of the root name servers, so that policy would block access to rather important sites. :-) I'd say that someone at VZB is pretty clueless. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751