Cisco Express Forwarding, Asymmetric routing, fragmentation, TTL
Unicast, broadcast, multicast, VLSM, ARP, DHCP relay and server
static routing, default routing, RIP, RIPv2, RIPng, EIGRP, EIGRP load balancing, OSPF, BGP
Route filtering, Route redistribution, Route summarization
policy-based routing, Route maps, Route tagging, Split-horizon, Route poisoning
NAT, IPSLA tracking