OpenWrt 18.06.5-18.06.7 and IPv6

Installing and Using OpenWrt
7

I'm linked per PPPoE and as WAN if WAN switch to PPPoE , there no this function and WAN_6 link as virtual port. If I try link WAN + WAN6 on PPPoE , so also opportunities set this no. Virtual Interface not editable.

All whay I can this set so

Screenshot_168
Screenshot_168978×996 25.9 KB