Quoting Barry Armstrong on Thursday October 01, 2009:
| Name Server ns1.aussiehq.net.au
| Name Server IP 2405:5000:2:17::2
| Name Server ns2.aussiehq.net.au
| Name Server IP 208.71.170.223
| Name Server ns3.aussiehq.net.au
| Name Server IP 2405:5000:2:17::3
| 
| There appears to be some very unusual looking IP addresses showing for
| the ns1 and ns3 name servers above.

They are called IPv6 addresses. You'd better start getting used to them.

What I wonder about is ns1.aussiehq.net.au and ns3.aussiehq.net.au do
have A records but they are not listing in the WHOIS, neither is the
AAAA for ns2.aussiehq.net.au:

;; QUESTION SECTION:
;aussiehq.net.au.               IN      NS

;; AUTHORITY SECTION:
aussiehq.net.au.        14400   IN      NS      ns1.aussiehq.net.au.
aussiehq.net.au.        14400   IN      NS      ns2.aussiehq.net.au.
aussiehq.net.au.        14400   IN      NS      ns3.aussiehq.net.au.

;; ADDITIONAL SECTION:
ns1.aussiehq.net.au.    14400   IN      A       203.88.123.2
ns1.aussiehq.net.au.    14400   IN      AAAA    2405:5000:2:17::2
ns2.aussiehq.net.au.    14400   IN      A       208.71.170.223
ns2.aussiehq.net.au.    14400   IN      AAAA    2001:470:1f0f:60f::1
ns3.aussiehq.net.au.    14400   IN      A       203.88.123.3
ns3.aussiehq.net.au.    14400   IN      AAAA    2405:5000:2:17::3

Is this a registry fault? Registrar fault?

kim