Layer 3 Configuration This chapter covers the following Layer 3 sections: IPv4 IPv6 Ingress and Egress Per-Port for IPv4 and IPv6 Counters ACLs and route maps VRRP and VARP DirectFlow Decap Groups Nexthop Groups Global Knob to Set MTU for all Layer 3 Interfaces Support for Layer 3 MTU on 7280R3/7500R3/7800R3 Segment Security