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Is having an IPv6 reverse lookup zone necessary for an Active Directory network?

Normally I would just create it and move on, however, in this case the prefix is delegated and changes occasionally. So I have to create a new one every time the prefix changes.

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    Whether the answer is yes or no, you really should be using a ULA prefix, so that you have unchanging addresses to refer to everything on your network. – Michael Hampton Mar 8 '17 at 21:37
  • I'm open to using ULA, however, I haven't been able to gather enough information about how to set it up in combination with the public prefix. I asked serverfault.com/questions/804607/… , but didn't get any answers. Also, many of the articles I read (and one book), said that ULA should only be used in rare cases for isolated networks. – Corey Mar 9 '17 at 3:02
  • ULA is used for traffic that never enters the public Internet. You can use it for local traffic, and Global addresses for Internet traffic. IPv6 allows you to put many IPv6 addresses on an interface. To use ULA addressing, you must use the upper half of the fc00::/7 range (fd00::/8), and the next 40 bits must be randomly assigned. The leaves you 16 bits for subnetting (65,536 subnets) before you need to get another 40 random bits. – Ron Maupin Mar 9 '17 at 6:25
  • "ULA should only be used in rare cases"? Er, you've been reading some very bad articles (and one book). Everyone should be using ULA, from Fortune 500 companies down to the home network. Just set it up on the appropriate router (usually your edge router). – Michael Hampton Mar 9 '17 at 9:07
  • howfunky.com/2013/09/… – Corey Mar 9 '17 at 13:18
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Q: Is having an IPv6 reverse lookup zone necessary for an Active Directory network?

A: No. Having an IPv4 reverse lookup zone isn't necessary either. AD doesn't use reverse lookup zones and therefore neither is necessary.

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