[arin-ppml] ULA-C and reverse DNS

michael.dillon at bt.com michael.dillon at bt.com
Mon Mar 22 07:03:52 EDT 2010

I got a private question that I thought was worth sharing:

> So, how is the reverse DNS handled then?

Same as RFC 1918 addresses.

In fact, it would be good for this to be made explicit either 
in the global RIR policy (i.e. RIR will not prove reverse 
DNS services) or in the RFC or both.

Addresses intended for use on the public Internet come with
reverse DNS delegations, but ULA-C addresses only come with
guaranteed global uniqueness.

--Michael Dillon

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