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My new provider IPv6 connectivity, however after connecting my OpenWrt based WNDR4300 (using Chaos Calmer 15.05-rc3) things unfortunately did not “just work”… This post summarize some hints how to debug IPv6 on OpenWrt.

First, make sure that the upstream (WAN) interface is configured according to the documentation in the OpenWrt Wiki. Using LuCI, you have to create a new interface (WAN6) which should cover the WAN interface too. This new interface will then be used for IPv6 configuration by choosing the protocol “DHCPv6 client”.

If your ISP provides IPv6 support, it should “just work” at this point. However, what to do if not? Read more »