$ORIGIN	.
$TTL	1

; OK
@	A	0.0.0.0		; Minimal ipv4 address
@	A	255.255.255.255	; Maximal ipv4 address
@	A	\# 4 00000000	; Hexadecimal rdata
@	TYPE1	\# 4 00000000	; TYPE + Hexadecimal rdata
@	TYPE1	0.0.0.0		; TYPE
@	a	0.0.0.0		; Type in lower-case

; KO
@	A
@	A			; Empty rdata
@	A	\# 0		; Hex empty rdata
@	A	0.0.0.256	; 8bit overflow
@	A	0.0.0		; Short address
@	A	0.0.0.A		; Bad character
@	A	0.0.0.0 1.1.1.1	; Unexpected item