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