Configuring Interfaces for IPv6 For complete information on the SonicOS implementation of IPv6, see IPv6 . IPv6 interfaces are configured on the Network > Interfaces page by clicking the IPv6 option for the View IP Version radio button at the top right corner of the page. By default, all IPv6 interfaces appear as routed with no IP address. Multiple IPv6 addresses can be added on the same interface. Auto IP assignment can only be configured on WAN interfaces. NOTE: PortShield interfaces are not supported in IPv6. Each interface can be configured to receive router advertisement or not. IPv6 can be enabled or disabled on each interface. The zone assignment for an interface must be configured through the IPv4 interface page before switching to IPv6 mode.