Yes: Asus IPv6 DDNS. I have DDNS with both Asus & No IP ( via use of /jffs/configs/inadyn.conf.add plus the extra line "
allow-ipv6 = true" ). No IP works perfectly for me, with one minor exception (see below) but AFAIK Asus themselves, still haven't - yet - finalised their own IPv6 DDNS support, hence this process was removed in a previous firmware release by
@RMerlin and won't be added back in, until the Asus GPL's include a 100% working version of it. The removal, means that upon a re-boot (...depending on the IPv6 service setup that you receive from you're own ISP) IF your router is provided with a new IPv6 address (e.g. as I mentioned previously, when you have a Static IPv6 *******/64 address but you've setup Stateless IPv6 addresses within that) then
at present, you have to go and update the IPV6 address part of your No IP DDNS yourself, within your No IP account. Currently, it's not checked and/or updated by process, like the IPv4 address is. It's a very minor thing, but again AFAIK that will also be corrected / function again once the Asus IPv6 DDNS service is re-instated. What setup (your ISP IPv6 address and functionality at dynv6 etc) do you have at present that works 100% with this current Merlin firmware release? Something different and/or something that already works perfectly? Thx!