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+---
+layout: post
+comments: true
+title: "Tunnelbroker.net & ASUS routers"
+category: [english]
+tags: [IPv6, english]
+---
+
+*I am typing this, because there is a lot of misinformation on this,
+ especially about the dynamic DNS part.*
+
+## The tunnel
+
+Go to the router web panel and IPv6 under advanced settings.
+
+### Basic Config
+
+* Connection type: Tunnel 6in4
+* Server IPv4-address: *Server IPv4 Address from IPv6 tunnel endpoints in
+  tunnelbroker.net tunnel details*
+* Client IPv6 address: *Client IPv6 address from IPv6 tunnel endpoints in
+  tunnelbroker.net tunnel details*
+* IPv6 prefix length: 64
+* Tunnel MTU: 0
+* Tunnel TTL: 255
+
+### IPv6 LAN Setting
+
+* LAN IPv6 Prefix: *Routed /64 from Routed IPv6 Prefixes from
+  tunnelbroker.net tunnel details*
+* LAN Prefix Length: 64
+
+### IPv6 DNS Setting
+
+* IPv6 DNS Server 1: 2001:470:20::2 *(this is the one tunnelbroker.net
+  says for me)*
+* IPv6 DNS Server 2: 2001:4860:4860::8888 *Google DNS 1*
+* IPv6 DNS Server 3: 2001:4860:4860::8844 *Google DNS 2*
+
+### Auto Configuration Setting
+
+* Enable Router Advertisement: Enable
+
+## Dynamic DNS
+
+Go to Advanced Settings, WAN, DDNS
+
+* Enable the DDNS CLient: Yes
+* Server: WWW.TUNNELBROKER.NET
+* Host Name: *tunnel ID from tunnelbroker.net tunnel details*
+* User Name or E-mail address: *username of tunnelbroker.net
+* Password or DDNS Key: *Update Key from tunnel details under the Advanced
+  tab*
+
+All guides I have seen say that username is user ID from index of
+tunnelbroker.net and password is account password, but that doesn't work
+for me. This is how I got it working guessing the details based on
+*Example Update URL* at the same place you got the Update Key.
+
+Now it should either work or not.
+
+* If it gives error saying something about trying again later, you are
+  doing something wrong.
+* If it gives error about endpoint IP not changed since the last update, 
+  it works.
+* If you don't get error, it doesn't work.
+
+Now I would suggest you to go to Administration and from there
+Restore/Save/UPload Setting and clicking the "Save setting"s "Save" button
+so in case something bad happens you can easily restore the working state.
+
+And I probably shouldn't need to say this, but I will say it
+anyway: **don't use admin/admin as username/password combination!**