This feature introduces the hardware forwarding support for IPv4 over IPv4, GRE-Tunnel interfaces on Arista Switches. A GRE-Tunnel interface acts as a logical interface which performs the GRE encapsulation or decapsulation. IPv6 payload over IPv4 GRE-Tunnel interfaces is supported with limitations (see Limitation section).

On DCS 7048, DCS 7280E, DCS 7500 and DCS 7500E, prior to EOS 4.14.5, multicast traffic using ingress replication would