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This is the BSDA Study Guide Book written via a wiki collaboration. This is a work in progress. You may contribute to or discuss this specific page at http://bsdwiki.reedmedia.net/wiki/Manipulate_ARP_and_neighbor_discovery_caches.html.
Manipulate ARP and neighbor discovery caches
Understand basic ARP theory as well as the neighbor discovery cache used on IPv6 networks. Be able to view, modify and clear these caches and recognize when it is necessary to do so.
arp: address resolution display and control
ndp: control/diagnose IPv6 neighbor discovery protocol
how arp works:
machine1 asks broadcast "who has x.x.x.x?"
broadcast request gets forwarded to all listeners
machine2 answers broadcast request with "machine2 has x.x.x.x"
view arp cache:
modify arp cache:
clear arp cache: