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FRITZ!Box

Logged in, the setup assistant fills in your own host name and token.

Your FRITZ!Box updates dynr.net itself whenever its internet address changes.

  1. Open http://fritz.box and log in.
  2. Go to Internet → Permit Access → DynDNS.
  3. Tick Use DynDNS and choose Custom as the provider.
  4. Fill in the fields and click Apply.
Field Value
Update URL https://dynr.net/nic/update?hostname=<domain>&myip=<ipaddr>&myipv6=<ip6addr>
Domain name <your-host>.dynr.net
Username <your-host>.dynr.net
Password <your-token>

Copy the update URL exactly as shown: the FRITZ!Box replaces <domain>, <ipaddr> and <ip6addr> itself. Without IPv6 the last value stays empty, which is fine.

Check

The FRITZ!Box shows the DynDNS status on the same page. In the setup assistant the live test turns green as soon as the box reports in.

Problems

  • badauth: username or password (token) is wrong.
  • nohost: the domain name does not match the token's host.
  • DynDNS is not available in repeater or IP client mode; set it up on the box that connects to the internet.