ZTE Corporation Juniper Networks Individual Cisco Systems Nokia Verizon BIER is a new architecture for the forwarding of multicast data packets without requiring per-flow state inside the network. This document describes how the existing BIER encapsulation specified in RFC 8296 works in an IPv6 non-MPLS network, referred to as BIERin6. Specifically, like in an IPv4 network, BIER can work over L2 links directly or over tunnels. In case of IPv6 tunneling, a new IP "Next Header" type is to be assigned for BIER.