I have read and followed the "Reporting Problems" section on the Contact page and am providing the following details for this report based on the list of items stated there: My handle: RBH4-SIXXS Subnet: R8077 I am well aware that I have skipped some of the points on your list, but my problem is related to the zonecheck tool only aa the tunnel and subnet are working great. I have setup the subnet R8077 and added ns.zz9.dk as the nameserver. This is working fine and reverse DNS lookups are working fine. Your zonecheck reports an error though: I tried to add smaug.zz9.dk as a nameserver when I created the subnet, but it failed (as it should have been ns.zz9.dk), so I added ns.zz9.dk instead. This all seems ok, but I cannot get rid of this message now. When I look at the subnet page (https://www.sixxs.net/home/routeinfo/?8077) smaug.zz9.dk is not listed so I cannot remove it. smaug.zz9.dk does not occur in my zone file: It was once listed as an NS record but I removed it several days ago and have waited patiently for the record to time out in the cache. Running zonecheck at home gives no error (apart from complaining that I have only one nameserver and need at least two). It seems like a bug in your zonecheck or stale data somewhere in your system, but I could of course have done something wrong. If you need more information I will gladly provide it. I can also be contacted by email: moffe@zz9.dk Regards and thank you in advance. /Rasmus Bøg Hansen