Help: Reverse Authority

[Mark.Andrews at nominum.com]

> 
> Greetings.
> 
> I need help and I don't have the BIND books. :(
> 
> We are an ISP that has recently gotten involved with selling Class C's to cus
> tomers that wish to run/maintain their own DNS servers.

	Are you selling or leasing?  Most address space is actually leased.
> 
> My question is, how do I give my customers reverse authority from my own prim
> ary and secondary DNS servers? I have researched the 'Ask Mr. DNS, and the DN
> S RD' with no positive findings ... (major bummer)

	How big is the pool the addresses are coming out of?
	If it is /16 or larger then you just add appropriate NS
	records to the reverse for the relevent /16.

	e.g.
		You have 191.30/15 and are allocating 191.31.56/23.
		In the 31.191.in-addr.arpa zone you add NS records
		for 56.31.191.in-addr.arpa and 57.31.191.in-addr.arpa
		pointing to their servers.

		56.31.191.in-addr.arpa	NS 	ns1.example.com.
		56.31.191.in-addr.arpa	NS 	ns2.example.com.
		57.31.191.in-addr.arpa	NS 	ns1.example.com.
		57.31.191.in-addr.arpa	NS 	ns2.example.com.

	If your allocation is smaller than a /16, you need to co-ordinate
	the delegation with your upstream provider.
	
	For address space smaller than a /24 see BCP 20 (RFC 2317).

	Mark
> 
> Can anyone help me? Please?
> 
> Thanks,
> Bill
> 
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com