 RFC 791, Internet Protocol, DARPA Internet Program Protocol Specification, Information Sciences Institute, Sept. 1981 The internet protocol layer code is independent of the type of network that it is physically running over.
<meaning-changed>  RFC 791, Internet Protocol, DARPA Internet Program Protocol Specification, Information Sciences Institute, Sept. 1981 The internet protocol layer code is independent of the type of network that it is physically running over.
 Updated by The internet protocol layer code is independent of the type of network that it is physically running over.