[arin-ppml] Revealing /32 customers?

Jeffrey Lyon jeffrey.lyon at blacklotus.net
Thu Apr 26 17:06:44 EDT 2012

On Thu, Apr 26, 2012 at 4:36 PM, William Herrin <bill at herrin.us> wrote:
> Hi folks,
> Paraphrasing a private message I received during a recent NANOG discussion:
> "We have roughly 66 /32 customer assignments and a /24 for management
> addresses (switches, waps, wireless backhauls, servers, etc). Also a
> number of large assignments to DHCP pools.
> ARIN not only asked for the 66 customer names once, when the company
> went back to ask for additional space after renumbering, they were
> asked for it again. ARIN asked nothing concerning the DHCP pools,
> which by themselves qualified the address space."
> My understanding was that our consensus policy is that an ISP is
> expected to reveal customer information about assignments of /29 and
> larger. So, this brings to mind two questions:
> 1. Do current ARIN staff procedures have situations which place a
> mandatory requirement for an ISP to reveal (under NDA or otherwise)
> customers to whom less than a /29 of address spaces has been assigned?
> By "mandatory" I mean that ARIN staff will not accept an alternate
> form of demonstration that the /32 assignments are in use. The
> customer identities are required.
> 2. If ARIN staff procedures are in fact as described in #1, from which
> NRPM policies do those particular procedures derive?
> Thanks,
> Bill Herrin
> --
> William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
> 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
> Falls Church, VA 22042-3004
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When we made our last IPv4 request to go from /21 to /20 we were asked
for the specific justification for each individual /32. I questioned
this practice and was informed that the reason was we had a large
percentage of IP space dedicated to internal infrastructure (~30%
routers, switches, DDoS mitigation appliances, etc.)

Jeffrey A. Lyon, CISSP
President | (757) 304-0668
Black Lotus Communications

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