Opened 5 years ago

Last modified 3 years ago

#13496 new defect

nsupdate: Tries to use IPv6 even though this is not working

Reported by: Ralf Bergs <Ralf-OpenWRT@…> Owned by: developers
Priority: normal Milestone: Chaos Calmer 15.05
Component: packages Version: Trunk
Keywords: IPv6, nsupdate, dynamic DNS update Cc:


I had a strange problem with dynamic DNS updates on a router I flashed with OpenWRT’s unstable distro “Barrier Breaker” — instead of the DNS record be updated I just got an error message, but it was totally non-obvious what went wrong:

Communication with server failed: operation canceled

I used the debug -d option to nsupdate, and this gave me the clue I needed: Strangely nsupdate tried to contact my DNS server via its IPv6 address (it has both an IPv4 and an IPv6 address), even though my network and Internet provider aren’t yet IPv6-capable:

Sending update to 2a01:4f8:xx:xxxx::x#53
Outgoing update query:

On Attitude Adjustment this hasn’t been a problem.

Attachments (0)

Change History (1)

comment:1 Changed 3 years ago by pklaus

I'm seeing the same problem on 14.07.

Add Comment

Modify Ticket

as new .

E-mail address and user name can be saved in the Preferences.

Note: See TracTickets for help on using tickets.