Module neighbor 

Neighbor resolution system for automatic MAC address lookup.

which automatically resolves destination MAC addresses based on the network layer protocol being used.

For example:

• ARP requests should use broadcast MAC (ff:ff:ff:ff:ff:ff)
• IP packets need ARP resolution to find the destination MAC
• Multicast IPs map to specific multicast MACs

Structs

ArpCache

ARP cache for storing resolved MAC addresses.

CacheEntry

Neighbor cache entry with expiration.

NdpCache

IPv6 neighbor cache.

NeighborCache

Registry for neighbor resolvers.

Traits

NeighborResolver

Trait for neighbor resolution.

Functions

ipv4_multicast_mac

Get multicast MAC for IPv4 multicast address.

ipv6_multicast_mac

Get multicast MAC for IPv6 multicast address.

is_ipv4_multicast

Check if an IPv4 address is multicast.

is_ipv6_multicast

Check if an IPv6 address is multicast.

solicited_node_multicast

Solicited-node multicast address for IPv6.

Type Aliases

ResolverFn

A resolver function type for determining destination MAC addresses.