module ietf-ipv4-unicast-routing {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-ipv4-unicast-routing";

    prefix v4ur;

    import ietf-routing {
      prefix rt;
    }
    import ietf-inet-types {
      prefix inet;
    }

    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:   Ladislav Lhotka
                  <mailto:lhotka@nic.cz>";

    description
      "This YANG module augments the 'ietf-routing' module with basic
        configuration and state data for IPv4 unicast routing.

        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).

        The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
        NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'MAY', and
        'OPTIONAL' in the module text are to be interpreted as described
        in RFC 2119 (http://tools.ietf.org/html/rfc2119).

        This version of this YANG module is part of RFC XXXX
        (http://tools.ietf.org/html/rfcXXXX); see the RFC itself for
        full legal notices.";

    revision "2015-05-25" {
      description "Initial revision.";
      reference
        "RFC XXXX: A YANG Data Model for Routing Management";

    }


    identity ipv4-unicast {
      base rt:ipv4;
      description
        "This identity represents the IPv4 unicast address family.";
    }

    augment /rt:routing/rt:routing-instance/rt:routing-protocols/rt:routing-protocol/rt:static-routes {
      description
        "This augment defines the configuration of the 'static'
          pseudo-protocol with data specific to IPv4 unicast.";
      container ipv4 {
        description
          "Configuration of a 'static' pseudo-protocol instance
            consists of a list of routes.";
        list route {
          key "destination-prefix";
          ordered-by user;
          description
            "A user-ordered list of static routes.";
          leaf destination-prefix {
            type inet:ipv4-prefix;
            mandatory true;
            description
              "IPv4 destination prefix.";
          }

          leaf description {
            type string;
            description
              "Textual description of the route.";
          }

          container next-hop {
            description
              "Configuration of next-hop.";
            uses rt:next-hop-content {
              augment next-hop-options {
                description
                  "Add next-hop address case.";
                leaf next-hop-address {
                  type inet:ipv4-address;
                  description
                    "IPv4 address of the next-hop.";
                }
              }
            }
          }  // container next-hop
        }  // list route
      }  // container ipv4
    }

    augment /rt:fib-route/rt:input/rt:destination-address {
      when
        "rt:address-family='v4ur:ipv4-unicast'" {
        description
          "This augment is valid only for IPv4 unicast.";
      }
      description
        "This leaf augments the 'rt:destination-address' parameter of
          the 'rt:fib-route' operation.";
      leaf address {
        type inet:ipv4-address;
        description
          "IPv4 destination address.";
      }
    }

    augment /rt:fib-route/rt:output/rt:route {
      when
        "rt:address-family='v4ur:ipv4-unicast'" {
        description
          "This augment is valid only for IPv4 unicast.";
      }
      description
        "This leaf augments the reply to the 'rt:fib-route'
          operation.";
      leaf destination-prefix {
        type inet:ipv4-prefix;
        description
          "IPv4 destination prefix.";
      }
    }

    augment /rt:fib-route/rt:output/rt:route/rt:next-hop/rt:next-hop-options/rt:simple-next-hop {
      when
        "../rt:address-family='v4ur:ipv4-unicast'" {
        description
          "This augment is valid only for IPv4 unicast.";
      }
      description
        "This leaf augments the 'simple-next-hop' case in the reply to
          the 'rt:fib-route' operation.";
      leaf next-hop-address {
        type inet:ipv4-address;
        description
          "IPv4 address of the next-hop.";
      }
    }
  }  // module ietf-ipv4-unicast-routing