module ietf-ip {

    yang-version 1.1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-ip";

    prefix ip;

    import ietf-interfaces {
      prefix if;
    }
    import ietf-inet-types {
      prefix inet;
    }
    import ietf-yang-types {
      prefix yang;
    }

    organization
      "IETF NETMOD (Network Modeling) Working Group";

    contact
      "WG Web:   <https://datatracker.ietf.org/wg/netmod/>
WG List:  <mailto:netmod@ietf.org>

Editor:   Martin Bjorklund
	  <mailto:mbj@tail-f.com>";

    description
      "This module contains a collection of YANG definitions for
managing IP implementations.

Copyright (c) 2018 IETF Trust and the persons identified as
authors of the code.  All rights reserved.

Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Simplified BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).

This version of this YANG module is part of RFC 8344; see
the RFC itself for full legal notices.";

    revision "2018-02-22" {
      description "Updated to support NMDA.";
      reference
        "RFC 8344: A YANG Data Model for IP Management";

    }

    revision "2014-06-16" {
      description "Initial revision.";
      reference
        "RFC 7277: A YANG Data Model for IP Management";

    }


    feature ipv4-non-contiguous-netmasks {
      description
        "Indicates support for configuring non-contiguous
subnet masks.";
    }

    feature ipv6-privacy-autoconf {
      description
        "Indicates support for privacy extensions for stateless address
autoconfiguration in IPv6.";
      reference
        "RFC 4941: Privacy Extensions for Stateless Address
        	  Autoconfiguration in IPv6";

    }

    typedef ip-address-origin {
      type enumeration {
        enum "other" {
          value 0;
          description
            "None of the following.";
        }
        enum "static" {
          value 1;
          description
            "Indicates that the address has been statically
configured -- for example, using the Network Configuration
Protocol (NETCONF) or a command line interface.";
        }
        enum "dhcp" {
          value 2;
          description
            "Indicates an address that has been assigned to this
system by a DHCP server.";
        }
        enum "link-layer" {
          value 3;
          description
            "Indicates an address created by IPv6 stateless
autoconfiguration that embeds a link-layer address in its
interface identifier.";
        }
        enum "random" {
          value 4;
          description
            "Indicates an address chosen by the system at
random, e.g., an IPv4 address within 169.254/16, a
temporary address as described in RFC 4941, or a
semantically opaque address as described in RFC 7217.";
          reference
            "RFC 4941: Privacy Extensions for Stateless Address
            	  Autoconfiguration in IPv6
             RFC 7217: A Method for Generating Semantically Opaque
            	  Interface Identifiers with IPv6 Stateless
            	  Address Autoconfiguration (SLAAC)";

        }
      }
      description
        "The origin of an address.";
    }

    typedef neighbor-origin {
      type enumeration {
        enum "other" {
          value 0;
          description
            "None of the following.";
        }
        enum "static" {
          value 1;
          description
            "Indicates that the mapping has been statically
configured -- for example, using NETCONF or a command line
interface.";
        }
        enum "dynamic" {
          value 2;
          description
            "Indicates that the mapping has been dynamically resolved
using, for example, IPv4 ARP or the IPv6 Neighbor
Discovery protocol.";
        }
      }
      description
        "The origin of a neighbor entry.";
    }
  }  // module ietf-ip