<div>
<div class="content wysiwyg-content">
I have this zone 28.35.169.12.in-addr.arpa.db 
 
32/28.35.169.12.in-addr.arpa. 3600 IN &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SOA &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ns1.foo.com. domains.foo.com. 2009060800 21600 3600 604800 3600 
32/28.35.169.12.in-addr.arpa. 3600 IN &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NS &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ns1.foo.com. 
32/28.35.169.12.in-addr.arpa. 3600 IN &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NS &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ns2.foo.com. 
34.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="http://www.accu-sark.com" rel="ugc">www.accu-sark.com</a>. 
35.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;crm.accu-sark.com. 
36.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;osc2or.accu-sark.com. 
38.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mail2.accu-sark.com. 
43.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mail.accu-sark.com. 
46.32/28.35.169.12.in-addr.arpa. 3600 IN PTR &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ext46.accu-sark.com. 
 
I am getting an error of when trying to import this zone to another IPAM management product 
 
RFC2317 prefix must not be empty for classless reverse zones 
 
My question is, how to fix this to make it compliant?
</div>
</div>

I have this zone 28.35.169.12.in-addr.arpa.db

32/28.35.169.12.in-addr.arpa. 3600 IN	SOA	ns1.foo.com. domains.foo.com. 2009060800 21600 3600 604800 3600
32/28.35.169.12.in-addr.arpa. 3600 IN	NS	ns1.foo.com.
32/28.35.169.12.in-addr.arpa. 3600 IN	NS	ns2.foo.com.
34.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	www.accu-sark.com.
35.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	crm.accu-sark.com.
36.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	osc2or.accu-sark.com.
38.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	mail2.accu-sark.com.
43.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	mail.accu-sark.com.
46.32/28.35.169.12.in-addr.arpa. 3600 IN PTR	ext46.accu-sark.com.

I am getting an error of when trying to import this zone to another IPAM management product

RFC2317 prefix must not be empty for classless reverse zones

My question is, how to fix this to make it compliant?

RFC2317 classless reverse zones question

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.