* [[Hot Standby Router Protocol]] or standard alternative VRRP [[Virtual Router Redundancy Protocol]], which allows multiple routers to share one [[IP address]] and MAC address to provide router redundancy. The [[OpenBSD]] project has an open source alternative, the Common Address Redundancy Protocol ([[Common Address Redundancy Protocol|CARP]]). On [[Linux]], [[iptables]] has a [[CLUSTERIP]] target.
* [[NSAP address]], another endpoint addressing scheme.
* [[Sleep Proxy Service]], which may 'take over' another device's MAC address during certain periods
