This project proposal is a subtask of smp networking and is elegible for funding independently.

The goal of this project is to remove the ARP, AARP, ISO SNPA, and IPv6 Neighbors from the routing table. Instead, the ifnet structure should have a set of nexthop caches (usually implemented using patricia trees), one per address family. Each nexthop entry should contain the datalink header needed to reach the neighbor.

This will remove cloneable routes from the routing table and remove the need to maintain protocol-specific code in the common Ethernet, FDDI, PPP, etc. code and put it back where it belongs, in the protocol itself.

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