add IPV6 relay mode in Asus Merlin

[Rooby]

Hello

unfortunately some cable ISP prohibit the bridge mode and prefix delegation in the supplied routers (which have to be used).
A solution is to use a cascaded router setup with an OpenWRT router behind.
On Openwrt there exists a so called IPV6 relay mode which uses the same WAN IPV6 /64 prefix also for his clients
but still enable routing and the IPV6 firewall. People are using this OpenWRT relay mode to access the clients form outside behind such a router from the ISP.
Could it be posssible to add this relay mode into the Asus Merlin SW?
As I know this is not according to IPV6 spec so no comercial router will implement such an IPV6 relay. The only hope is to get in alternative firmware like Asus Merlin.
I'm not an expert so I cannot judge about implementation effort. Maybe it already can be implemented via shell scripts.

 

[charlie2alpha]

I doubt RMerlin will implement such a thing but you are indeed correct that it can be done via scripts, in short, you need to extract the IPv6 prefix from the WAN interface and add it in the proper lines in dnsmasq.conf. Requires knowledge of linux shell scripts obviously plus reading up on the dnsmasq.conf man page.