module Cisco-IOS-XR-spirit-cgn-nat64-stless-cfg {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-spirit-cgn-nat64-stless-cfg";

    prefix spirit-cgn-nat64-stless-cfg;

    import ietf-inet-types {
      prefix inet;
    }
    import Cisco-IOS-XR-types {
      prefix xr;
    }
    import cisco-semver {
      prefix semver;
    }
    import Cisco-IOS-XR-se-cgn-cfg {
      prefix a1;
    }

    organization "Cisco Systems, Inc.";

    contact
      "Cisco Systems, Inc.
     Customer Service
     
     Postal: 170 West Tasman Drive
     San Jose, CA 95134
     
     Tel: +1 800 553-NETS
     
     E-mail: cs-yang@cisco.com";

    description
      "This module contains a collection of YANG definitions
     for Cisco IOS-XR spirit-cgn-nat64-stless package configuration.
     
     This YANG module augments the
       Cisco-IOS-XR-se-cgn-cfg
     module with configuration data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

    revision "2019-04-05" {
      description
        "Establish semantic version baseline.";
    }

    revision "2015-11-09" {
      description "IOS XR 6.0 revision.";
    }

    semver:module-version "1.0.0";

    typedef Algorithm {
      type enumeration {
        enum "hash" {
          value 1;
          description "Hashing";
        }
        enum "ttl" {
          value 2;
          description "Time to live";
        }
        enum "random" {
          value 3;
          description "Randomly generate";
        }
      }
      description "Algorithm";
    }

    grouping TCP-MSS {
      description
        "Common node of ipv6, ipv4";
      leaf tcp-mss {
        type uint32 {
          range "28..1500";
        }
        units "byte";
        description
          "Maximum segment size to be used in bytes";
      }
    }  // grouping TCP-MSS

    grouping AF {
      description
        "Common node of stateless, mapt";
      container af {
        description
          "Address family related configuration";
        container ipv6 {
          description "IPv6 address faimly";
          container protocol {
            description "Select a protocol";
            container icmp {
              description "ICMP protocol";
              leaf reset-mtu {
                type empty;
                description
                  "Reset maximum transmission unit when packet
                 is too big";
              }
            }  // container icmp
          }  // container protocol

          leaf traffic-class {
            type uint32 {
              range "0..255";
            }
            description
              "Traffic class to be set when translating from
             IPv4 to IPv6";
          }

          leaf df-override {
            type empty;
            description "Override DF bit";
          }

          uses INTERFACE;

          uses TCP-MSS;
        }  // container ipv6

        container ipv4 {
          description "IPv4 address faimly";
          leaf tos {
            type uint32 {
              range "0..255";
            }
            description
              "Type of service value to be set when
             translating IPv6 to IPv4";
          }

          uses INTERFACE;

          uses TCP-MSS;
        }  // container ipv4
      }  // container af
    }  // grouping AF

    grouping INTERFACE {
      description
        "Common node of ipv6, ipv4";
      leaf interface {
        type xr:Interface-name;
        description
          "ServiceApp interface to be used";
      }
    }  // grouping INTERFACE

    grouping IPV6 {
      description
        "Common node of external-domain, cpe-domain";
      container ipv6 {
        presence
          "Indicates a ipv6 node is configured.";
        description "ipv6 parameters";
        container prefix {
          presence
            "Indicates a prefix node is configured.";
          description "CPE IPv6 Prefix";
          leaf prefix {
            type inet:ip-address-no-zone;
            mandatory true;
            description
              "IPv6 address and prefix";
          }

          leaf length {
            type xr:Ipv6-prefix-length;
            mandatory true;
            description
              "Prefix of the IP Address";
          }
        }  // container prefix

        container ipv6-prefix {
          description "prefix";
          leaf ipv6-prefix-length {
            type uint32 {
              range "1..128";
            }
            description
              "prefix length (must be in the range of 1-64 or
             128)";
          }
        }  // container ipv6-prefix

        leaf vrf {
          type xr:Cisco-ios-xr-string {
            length "1..32";
          }
          mandatory true;
          description "ipv6 vrf name";
        }
      }  // container ipv6
    }  // grouping IPV6

    grouping CPE-DOMAIN {
      description
        "Common node of mapt, map-t-cisco";
      container cpe-domain {
        description "CPE domain parameters";
        container ipv4 {
          description "ipv4 parameters";
          container ipv4-prefix {
            description "prefix";
            leaf ipv4-prefix-length {
              type uint32 {
                range "0..32";
              }
              description "prefix length";
            }
          }  // container ipv4-prefix

          container prefix {
            presence
              "Indicates a prefix node is configured.";
            description
              "CPE domain ipv4 prefix";
            leaf start-address {
              type inet:ipv4-address-no-zone;
              mandatory true;
              description
                "IPv4 address prefix";
            }

            leaf netmask {
              type inet:ipv4-address-no-zone;
              mandatory true;
              description
                "IPv4 address prefix";
            }
          }  // container prefix
        }  // container ipv4

        uses IPV6;
      }  // container cpe-domain
    }  // grouping CPE-DOMAIN

    augment /a1:cgns/a1:cgn/a1:service-type {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-se-cgn-cfg'";
      container nat64 {
        description
          "IPv4 to IPv6 network address translation";
        container statelesses {
          description "Table of Stateless";
          list stateless {
            key "stateless-name";
            description
              "IPv4 to IPv6 stateless translation";
            container ipv6-prefix {
              presence
                "Indicates a ipv6-prefix node is configured.";
              description
                "IPv6 prefix to be used to translate IPv4
               address to IPv6 address";
              leaf prefix {
                type inet:ip-address-no-zone;
                mandatory true;
                description
                  "IPv6 address and prefix";
              }

              leaf length {
                type xr:Ipv6-prefix-length;
                mandatory true;
                description
                  "Prefix of the IP Address";
              }
            }  // container ipv6-prefix

            container traceroute {
              description
                "Traceroute related configurations";
              container translation {
                description
                  "Configurations related translating
                 traceroute addresses";
                container address-pool {
                  presence
                    "Indicates a address-pool node is configured.";
                  description
                    "IPv4 address pool for traceroute addresses";
                  leaf start-address {
                    type inet:ipv4-address-no-zone;
                    mandatory true;
                    description
                      "Start address and prefix for the address
                     pool";
                  }

                  leaf netmask {
                    type inet:ipv4-address-no-zone;
                    mandatory true;
                    description
                      "Start address and prefix for the address
                     pool";
                  }
                }  // container address-pool

                leaf algorithm {
                  type Algorithm;
                  description
                    "Algorithm to translate IPv6 address to IPv4
                   address";
                }
              }  // container translation
            }  // container traceroute

            leaf ubit-reserved {
              type empty;
              description
                "Enable reserving ubits in IPv6 address";
            }

            leaf stateless-name {
              type xr:Cisco-ios-xr-string {
                length "1..24";
              }
              description
                "Name of the NAT64 stateless instance";
            }

            uses AF;
          }  // list stateless
        }  // container statelesses
      }  // container nat64
    }

    augment /a1:cgns/a1:cgn/a1:service-type {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-se-cgn-cfg'";
      container mapts {
        description "Table of mapt";
        list mapt {
          key "mapt-name";
          description "map-t translations";
          container external-domain {
            description
              "external domain parameters";
            uses IPV6;
          }  // container external-domain

          leaf contiguous-ports {
            type uint32 {
              range "1..65536";
            }
            description
              "number of contiguous ports (must be power of
             2)";
          }

          leaf sharing-ratio {
            type uint32 {
              range "1..32768";
            }
            description
              "port sharing ratio (must be power of 2)";
          }

          leaf mapt-name {
            type xr:Cisco-ios-xr-string {
              length "1..24";
            }
            description
              "Name of map-t instance";
          }

          uses CPE-DOMAIN;

          uses AF;
        }  // list mapt
      }  // container mapts
    }

    augment /a1:cgv6s/a1:cgv6/a1:cgv6-service-type {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-se-cgn-cfg'";
      container map-t-ciscos {
        description "Table of MAPT_Cisco";
        list map-t-cisco {
          key "map-t-cisco-name";
          description "map-t translations";
          container ext-domain-names {
            description
              "Table of ExtDomainName";
            list ext-domain-name {
              key "ext-domain-name";
              description "Domain name";
              leaf ext-domain-name {
                type xr:Cisco-ios-xr-string;
                description "Domain Name";
              }

              list ext-ipv6-prefix {
                key "ext-ip-v6-prefix length";
                description
                  "External domain ipv6 prefix";
                leaf ipv4vrf {
                  type string;
                  description "IPv4 VRF";
                }

                leaf ext-ip-v6-prefix {
                  type inet:ip-address-no-zone;
                  description
                    "External domain ipv6 prefix and length";
                }

                leaf length {
                  type xr:Ipv6-prefix-length;
                  description
                    "Prefix of the IP Address";
                }
              }  // list ext-ipv6-prefix
            }  // list ext-domain-name
          }  // container ext-domain-names

          container cpe-domain-names {
            description
              "Table of CPEDomainName";
            list cpe-domain-name {
              key "cpe-domain-name";
              description "CPE Domain name";
              leaf cpe-domain-name {
                type xr:Cisco-ios-xr-string;
                description
                  "CPE Domain Name";
              }

              list cpe-ipv4-prefix {
                key "cpe-ipv4-prefix";
                description
                  "CPE domain ipv4 prefix";
                leaf cpe-ipv6-prefix {
                  type inet:ip-address-no-zone;
                  description
                    "CPE Domain IPv6 prefix";
                }

                leaf cpe-ipv4-prefix {
                  type inet:ipv4-address-no-zone;
                  description
                    "CPE Domain IPv4 Prefix";
                }
              }  // list cpe-ipv4-prefix
            }  // list cpe-domain-name
          }  // container cpe-domain-names

          container map-t-cisco-af {
            description
              "Address family related configuration";
            container map-t-cisco-ipv6 {
              presence
                "Indicates a map-t-cisco-ipv6 node is configured.";
              description
                "IPv6 address family";
              leaf path-mtu {
                type uint32 {
                  range "1280..9216";
                }
                mandatory true;
                description
                  "Path-MTU for IPv6 to be used for ServiceApp";
              }

              leaf interface {
                type xr:Interface-name;
                description
                  "ServiceApp interface to be used";
              }

              leaf tcp-mss {
                type uint32 {
                  range "28..1500";
                }
                units "byte";
                description
                  "Maximum segment size to be used in bytes";
              }
            }  // container map-t-cisco-ipv6

            container map-t-cisco-ipv4 {
              presence
                "Indicates a map-t-cisco-ipv4 node is configured.";
              description
                "IPv4 address family";
              leaf path-mtu {
                type uint32 {
                  range "65..9216";
                }
                mandatory true;
                description
                  "Path-MTU for IPv4 to be used for ServiceApp";
              }

              leaf interface {
                type xr:Interface-name;
                description
                  "ServiceApp interface to be used";
              }

              leaf tcp-mss {
                type uint32 {
                  range "28..1500";
                }
                units "byte";
                description
                  "Maximum segment size to be used in bytes";
              }
            }  // container map-t-cisco-ipv4
          }  // container map-t-cisco-af

          leaf contiguous-ports {
            type uint32 {
              range "1..65536";
            }
            description
              "number of contiguous ports (must be power of
             2)";
          }

          leaf sharing-ratio {
            type uint32 {
              range "1..32768";
            }
            description
              "port sharing ratio (must be power of 2)";
          }

          leaf map-t-cisco-name {
            type xr:Cisco-ios-xr-string {
              length "1..24";
            }
            description
              "Name of map-t instance";
          }

          uses CPE-DOMAIN;
        }  // list map-t-cisco
      }  // container map-t-ciscos
    }
  }  // module Cisco-IOS-XR-spirit-cgn-nat64-stless-cfg