Reverse DNS Template Reference

	Substitution pattern	Example expansion using 192.168.23.45
Whole-IP patterns
Dashed IP	%i	192-168-23-45
Reverse dashed IP	%r	45-23-168-192
Hex-coded IP	%h	c0a8172d
Decimal IP	%d	323241453
Per-octet patterns (1, 2, 3, or 4 specify the octet; d, h or 0 specify decimal, hexidecimal, or 0-padded decimal)
First octet, decimal	%1d	192
Third octet, 0-padded	%30	023
Fourth octet, hexidecimal	%4h	2d
All octets, different expansions	%1h-%2d-%30-%4h	c0-168-023-2d

%i and %r also allow explicitly defining the separator; eg %.i or %_r. '.', '-', and '_' are the only characters
supported since DNS names may not contain most other non-alphanumerics.