Using IPv6 from internet service provider

[ilario]

Ross Schulman from https://dcmesh.net/ wrote this on the Matrix chat:

I think everything is working as it should, except for IPv6. The router plugged into the ethernet isn't getting a v6 assignment as it should, and I notice that /etc/config/network has a wan section, but not a wan6 section. Is it supposed to?

Until now, seems that the IPv6 from the internet service provider is not used, at least not automatically.
Is anywhere some documentation on how users should use it?

Expanding the code adding the corresponding lines for wan6 and dhcpv6 could be a solution, but I fear it could break something??
I mean, replacing this code:

lime-packages/packages/lime-proto-wan/files/usr/lib/lua/lime/proto/wan.lua

Lines 21 to 29 in 8aa007e

	uci:set("network", "wan", "interface")
	uci:set("network", "wan", "proto", "dhcp")
	uci:save("network")
	end
	function wan.setup_interface(ifname, args)
	local uci = libuci:cursor()
	uci:set("network", "wan", "device", ifname)
	uci:save("network")

with this:

	uci:set("network", "wan", "interface")
	uci:set("network", "wan", "proto", "dhcp")
	uci:set("network", "wan6", "interface")
	uci:set("network", "wan6", "proto", "dhcpv6")
	uci:save("network")
end

function wan.setup_interface(ifname, args)
	local uci = libuci:cursor()
	uci:set("network", "wan", "device", ifname)
	uci:set("network", "wan6", "device", ifname)
	uci:save("network")

would work for people with an ISP that provides IPv6? Would break things for the others?