Google incorrect IPv6 GeoIP

[yang.yu.list at gmail.com (Yang Yu)]

For some reason Google redirects requests from Dreamhost's IPv6 block
2607:f298::/32 to google.com.hk

$ wget http://www.google.com
--2013-04-11 16:06:45--  http://www.google.com/
Resolving www.google.com... 2607:f8b0:400c:c01::93, 173.194.75.99,
173.194.75.147, ...
Connecting to www.google.com|2607:f8b0:400c:c01::93|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://www.google.com.hk/url?sa=p&hl=zh-CN&pref=hkredirect&pval=yes&q=http://www.google.com.hk/&ust=1365721636015681&usg=AFQjCNEa0yI6UdIVf1tqLtCw3qrBC6Akww
[following]
--2013-04-11 16:06:46--
http://www.google.com.hk/url?sa=p&hl=zh-CN&pref=hkredirect&pval=yes&q=http://www.google.com.hk/&ust=1365721636015681&usg=AFQjCNEa0yI6UdIVf1tqLtCw3qrBC6Akww
Resolving www.google.com.hk... 2607:f8b0:400c:c01::6a, 173.194.75.105,
173.194.75.99, ...
Connecting to www.google.com.hk|2607:f8b0:400c:c01::6a|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://www.google.com.hk/ [following]
--2013-04-11 16:06:46--  http://www.google.com.hk/
Reusing existing connection to www.google.com.hk:80.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ?index.html?


The report IP problem form
(https://support.google.com/websearch/contact/ip?rd=1) does not think
IPv6 addresses are valid.

Can someone help with this issue?

Thanks.

Yang