module ietf-ip {

    yang-version 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 (NETCONF Data Modeling Language) Working Group";

    contact
      "WG Web:   <http://tools.ietf.org/wg/netmod/>
    WG List:  <mailto:netmod@ietf.org>
    WG Chair: Thomas Nadeau
              <mailto:tnadeau@lucidvision.com>
    WG Chair: Juergen Schoenwaelder
              <mailto:j.schoenwaelder@jacobs-university.de>
    Editor:   Martin Bjorklund
              <mailto:mbj@tail-f.com>";

    description
      "This module contains a collection of YANG definitions for
    configuring IP implementations.
    Copyright (c) 2014 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
    (http://trustee.ietf.org/license-info).
    This version of this YANG module is part of RFC 7277; see
    the RFC itself for full legal notices.";

    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 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, an
          RFC 4941 temporary address, or an RFC 7217 semantically
          opaque address.";
          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, e.g., IPv4 ARP or the IPv6 Neighbor Discovery
          protocol.";
        }
      }
      description
        "The origin of a neighbor entry.";
    }
  }  // module ietf-ip