[dns-operations] Missing nameservers reported by parent

[fenghe]

Hello,

from: http://www.intodns.com/dns-oarc.net

FAIL: The following nameservers are listed at your nameservers as 
nameservers for your domain, but are not listed at the parent 
nameservers (see RFC2181 5.4.1). You need to make sure that these 
nameservers are working.If they are not working ok, you may have problems!
ns2.dns-oarc.net

How about this warning?

Regards.