It didn't seem to work out-the-box and I don't see any obvious instructions anywhere that state how to enable it, but it does look like there's support for IPv6 from the OpenWRT interface.
Is there any way to be able to use IPv6 across both LAN and WAN? My ISP is Comcast and I use some Motorola Surfboard modem (it's DOCSIS 3).
I have a TP-Link router that out-the-box worked with IPv6. Here's some values (some values redacted):
WAN
Connection Type: Dynamic IPv6
Connection Status: Connected
IPv6 Address: 2001:558:xxxx:62:6064:xxxx:xxxx:152d /64
IPv6 Default Gateway: fe80::deeb:94ff:feb4:xxxx
Primary IPv6 DNS: 2001:558:feed::2
Secondary IPv6 DNS: 2001:558:feed::1
IPv6 LAN
IPv6 Address Type: RADVD
Prefix Length: 64
IPv6 Address: 2601:545:xxxx:73ba:xxxx:1fff:febd:xxx
