My ISP privided dual stack IPV6, just provide me one cable with static V4 IP address and gateway, no need any modem and DSL.
I tried setting all IPV6 internet conection options in 880L web setup GUI and update frimware from 1.07 to 1.08. but it does not work yet.
can not get v6 ip like 2001:....address. I don't want to update DD-WRT..
Some other wireless router can work without any special setting or just set IPV6 pass through,but dlink.