module openconfig-icmpv6-types {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/openconfig-icmpv6-types";

    prefix oc-icmpv6-types;

    import openconfig-extensions {
      prefix oc-ext;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
www.openconfig.net";

    description
      "OpenConfig module defining the types and coresponding subcodes for
ICMPv6.";

    revision "2023-05-02" {
      description "Fix module prefix.";
      reference
        "0.1.1";

    }

    revision "2023-01-26" {
      description
        "Initial revision of ICMPv6 types module.";
      reference
        "0.1.0";

    }

    oc-ext:openconfig-version "0.1.1";

    identity TYPE {
      description
        "Base identity for ICMPv6 codes";
    }

    identity CODE {
      description
        "Base identity for ICMPv6 subcodes.";
    }

    identity DESTINATION_UNREACHABLE {
      base TYPE;
      description
        "Type 1: Destination unreachable.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PACKET_TOO_BIG {
      base TYPE;
      description "Type 2: Packet too big.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity TIME_EXCEEDED {
      base TYPE;
      description "Type 3: Time exceeded.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PARAMETER_PROBLEM {
      base TYPE;
      description
        "Type 4: Parameter problem.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity ECHO_REQUEST {
      base TYPE;
      description "Type 128: Echo request.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity ECHO_REPLY {
      base TYPE;
      description "Type 129: Echo reply";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity MULTICAST_LISTENER_QUERY {
      base TYPE;
      description
        "Type 130: Multicast listener query";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity MULTICAST_LISTENER_REPORT {
      base TYPE;
      description
        "Type 131: Multicast listener report";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity MULTICAST_LISTENER_DONE {
      base TYPE;
      description
        "Type 132: Multicast listener done";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity ROUTER_SOLICITATION {
      base TYPE;
      description
        "Type 133: IPv6 router soliciation.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity ROUTER_ADVERTISEMENT {
      base TYPE;
      description
        "Type 134: IPv6 router advertisement.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity NEIGHBOR_SOLICITATION {
      base TYPE;
      description
        "Type 135: IPv6 neighbor solicitation.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity NEIGHBOR_ADVERTISEMENT {
      base TYPE;
      description
        "Type 136: IPv6 neighbor advertisement.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity REDIRECT {
      base TYPE;
      description
        "Type 137: IPv6 ICMP redirect message.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity RENUNBERING {
      base TYPE;
      description
        "Type 138: Router renumbering.";
      reference
        "RFC2894: Router Renumbering for IPv6";

    }

    identity NODE_INFORMATION_QUERY {
      base TYPE;
      description
        "Type 139: ICMP Node Information Query.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NODE_INFORMATION_RESPONSE {
      base TYPE;
      description
        "Type 140: ICMP Node Information Response.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity INVERSE_NEIGHBOR_SOLICITATION {
      base TYPE;
      description
        "Type 141: Inverse Neighbor Discovery Solicitation Message.";
      reference
        "RFC3122: Extensions to IPv6 Neighbor Discovery for
        Inverse Discovery Specification";

    }

    identity INVERSE_NEIGHBOR_ADVERTISEMENT {
      base TYPE;
      description
        "Type 142: Inverse Neighbor Discovery Advertisement Message.";
      reference
        "RFC3122: Extensions to IPv6 Neighbor Discovery for
        Inverse Discovery Specification";

    }

    identity VERSION2_MULTICAST_LISTENER {
      base TYPE;
      description
        "Type 143: Version 2 Multicast Listener Report";
      reference
        "RFC3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6";

    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REQUEST {
      base TYPE;
      description
        "Type 144: Home Agent Address Discovery Request Message.";
      reference
        "RFC6275: Mobility Support in IPv6";

    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REPLY {
      base TYPE;
      description
        "Type 145: Home Agent Address Discovery Reply Message.";
      reference
        "RFC6275: Mobility Support in IPv6";

    }

    identity MOBILE_PREFIX_SOLICITATION {
      base TYPE;
      description
        "Type 147: Mobile Prefix Solicitation.";
      reference
        "RFC6275: Mobility Support in IPv6";

    }

    identity MOBILE_PREFIX_ADVERTISEMENT {
      base TYPE;
      description
        "Type 147: Mobile Prefix Advertisement.";
      reference
        "RFC6275: Mobility Support in IPv6";

    }

    identity CERTIFICATION_PATH_SOLICITATION {
      base TYPE;
      description
        "Type 148: Certification Path Soliciation Message.";
      reference
        "RFC3971: SEcure Neighbor Discovery (SEND)";

    }

    identity CERTIFICATION_PATH_ADVERTISEMENT {
      base TYPE;
      description
        "Type 149: Certification Path Advertisement Message.";
      reference
        "RFC3971: SEcure Neighbor Discovery (SEND)";

    }

    identity MULTICAST_ROUTER_ADVERTISEMENT {
      base TYPE;
      description
        "Type 151: Multicast Router Advertisement.";
      reference
        "RFC4286: Multicast Router Discovery";

    }

    identity MULTICAST_ROUTER_SOLICITATION {
      base TYPE;
      description
        "Type 152: Multicast Router Solicitation.";
      reference
        "RFC4286: Multicast Router Discovery";

    }

    identity MULTICAST_ROUTER_TERMINATION {
      base TYPE;
      description
        "Type 153: Multicast Router Termination.";
      reference
        "RFC4286: Multicast Router Discovery";

    }

    identity FMIPV6 {
      base TYPE;
      description
        "Type 154: Fast handover mode for IPv6.";
      reference
        "RFC5568: Mobile IPv6 Fast Handovers";

    }

    identity RPL_CONTROL {
      base TYPE;
      description
        "Type 155: RPL Control Message.";
      reference
        "RFC6550: RPL: IPv6 Routing Protocol for Low-Power and Lossy Networks";

    }

    identity ILNPV6_LOCATOR_UPDATE {
      base TYPE;
      description
        "Type 156: ILNPv6 Locator Update Message.";
      reference
        "RFC6743: ICMP Locator Update Message for
        the Identifier-Locator Network Protocol for IPv6 (ILNPv6)";

    }

    identity DUPLICATE_ADDRESS_REQUEST {
      base TYPE;
      description
        "Type 157: Duplicate address request.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over Low-Power Wireless
        	 Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_CONFIRMATION {
      base TYPE;
      description
        "Type 158: Duplicate address confirmation.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over Low-Power Wireless
        	 Personal Area Networks (6LoWPANs)";

    }

    identity MPL_CONTROL {
      base TYPE;
      description
        "Type 159: MPL Control Message.";
      reference
        "RFC7731: Multicast Protocol for Low-Power and Lossy Networks (MPL)";

    }

    identity EXT_ECHO_REQUEST {
      base TYPE;
      description
        "Type 160: Extended echo request.";
      reference
        "RFC8335: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY {
      base TYPE;
      description
        "Type 161: Extended echo reply.";
      reference
        "RFC8335: PROBE: A Utility for Probing Interfaces";

    }

    identity DST_UNREACHABLE_CODE {
      base CODE;
      description
        "ICMPv6 destination unreachable subcodes.";
    }

    identity DST_UNREACHABLE_NO_ROUTE_TO_DST {
      base DST_UNREACHABLE_CODE;
      description
        "Code 0: No route to destination.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_DST_ADMIN_PROHIBITED {
      base DST_UNREACHABLE_CODE;
      description
        "Code 1: Communication with destination adminstratively prohibited.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_BEYOND_SCOPE_OF_SRC {
      base DST_UNREACHABLE_CODE;
      description
        "Code 2: Beyond scope of source address.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_ADDR {
      base DST_UNREACHABLE_CODE;
      description
        "Code 3: Address unreachable.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_PORT {
      base DST_UNREACHABLE_CODE;
      description
        "Code 4: Port unreachable.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_SRC_ADDR_FAILED_POLICY {
      base DST_UNREACHABLE_CODE;
      description
        "Code 5: Source address failed ingress/egress policy.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_REJECT_ROUTE_TO_DST {
      base DST_UNREACHABLE_CODE;
      description
        "Code 6: Reject route to destination.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity DST_UNREACHABLE_ERR_IN_SRC_ROUTING_HDR {
      base DST_UNREACHABLE_CODE;
      description
        "Code 7: Error in Source Routing Header.";
      reference
        "RFC8554: An IPv6 Routing Header for Source Routes with
        the Routing Protocol for Low-Power and Lossy Networks (RPL)";

    }

    identity DST_UNREACHABLE_HDRS_TOO_LONG {
      base DST_UNREACHABLE_CODE;
      description "Type 8: Headers too long";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to
        Processing Limits";

    }

    identity PACKET_TOO_BIG_CODE {
      base CODE;
      description
        "Subcodes for the ICMPv6 Packet Too Big type.";
    }

    identity PACKET_TOO_BIG_NO_CODE {
      base PACKET_TOO_BIG_CODE;
      description "No code, value 0.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity TIME_EXCEEDED_CODE {
      base CODE;
      description
        "Subcodes for the Time Exceeded ICMPv6 type.";
    }

    identity TIME_EXCEEDED_HOP_LIMIT {
      base TIME_EXCEEDED_CODE;
      description
        "Code 0: Hop limit exceeded in transit.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity TIME_EXCEEDED_FRAGMENT_REASSEMBLY {
      base TIME_EXCEEDED_CODE;
      description
        "Code 1: Fragment reassembly time exceeded.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PARAM_PROBLEM_CODE {
      base CODE;
      description
        "Subcodes for the Parameter Problem ICMPv6 type.";
    }

    identity PARAM_PROBLEM_ERR_HDR_FIELD {
      base PARAM_PROBLEM_CODE;
      description
        "Erroneous header field encountered.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PARAM_PROBLEM_UNRECOGNIZED_NET_HDR_TYPE {
      base PARAM_PROBLEM_CODE;
      description
        "Unrecognized Next Header type encountered.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PARAM_PROBLEM_UNRECOGNIZED_IPV6_OPT {
      base PARAM_PROBLEM_CODE;
      description
        "Unrecognized IPv6 option encountered.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity PARAM_PROBLEM_INCOMPLETE_HDR_CHAIN {
      base PARAM_PROBLEM_CODE;
      description
        "IPv6 First Fragment has incomplete IPv6 Header Chain.";
      reference
        "RFC7112: Implications of Oversized IPv6 Header Chains";

    }

    identity PARAM_PROBLEM_SR_UPPER_HDR_ERR {
      base PARAM_PROBLEM_CODE;
      description
        "SR Upper-layer Header Error";
      reference
        "RFC8754: IPv6 Segment Routing Header (SRH)";

    }

    identity PARAM_PROBLEM_UNRECOGNIZED_NEXT_HDR_TYPE {
      base PARAM_PROBLEM_CODE;
      description
        "Unrecognized Next Header type encountered by intermediate node";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity PARAM_PROBLEM_EXT_HDR_TOO_BIG {
      base PARAM_PROBLEM_CODE;
      description
        "Extension header too big.";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity PARAM_PROBLEM_EXT_HDR_CHAIN_TOO_LONG {
      base PARAM_PROBLEM_CODE;
      description
        "Extension header chain too long.";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity PARAM_PROBLEM_TOO_MANY_EXT_HDRS {
      base PARAM_PROBLEM_CODE;
      description
        "Too many extension headers.";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity PARAM_PROBLEM_TOO_MANY_OPTS {
      base PARAM_PROBLEM_CODE;
      description
        "Too many options in extension header.";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity PARAM_PROBLEM_OPT_TOO_BIG {
      base PARAM_PROBLEM_CODE;
      description "Option too big.";
      reference
        "RFC8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits";

    }

    identity ECHO_REQUEST_CODE {
      base CODE;
      description
        "Subcodes for the ICMPv6 echo request type.";
    }

    identity ECHO_REQUEST_NO_CODE {
      base ECHO_REQUEST_CODE;
      description "No code.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity ECHO_REPLY_CODE {
      base CODE;
      description
        "Subcodes for the ICMPv6 echo reply subcode.";
    }

    identity ECHO_REPLY_NO_CODE {
      base ECHO_REPLY_CODE;
      description "No code.";
      reference
        "RFC4443: Internet Control Message Protocol (ICMPv6)
        for the Internet Protocol Version 6 (IPv6) Specification";

    }

    identity MULTICAST_LISTENER_QUERY_CODE {
      base CODE;
      description
        "Subcodes for the multicast listener query ICMPv6 type.";
    }

    identity MULTICAST_LISTENER_QUERY_NO_CODE {
      base MULTICAST_LISTENER_QUERY_CODE;
      description "No code.";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity MULTICAST_LISTENER_REPORT_CODE {
      base CODE;
      description
        "Subcodes for the multicast listener report ICMPv6 type.";
    }

    identity MULTICAST_LISTENER_REPORT_NO_CODE {
      base MULTICAST_LISTENER_REPORT_CODE;
      description "No code.";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity MULTICAST_LISTENER_DONE_CODE {
      base CODE;
      description
        "Subcodes for the multicast listener done ICMPv6 type.";
    }

    identity MULTICAST_LISTENER_DONE_NO_CODE {
      base MULTICAST_LISTENER_DONE_CODE;
      description "No code.";
      reference
        "RFC2710: Multicast Listener Discovery (MLD) for IPv6";

    }

    identity ROUTER_SOLICITATION_CODE {
      base CODE;
      description
        "Subcodes for the router solicitation ICMPv6 type.";
    }

    identity ROUTER_SOLICITATION_NO_CODE {
      base ROUTER_SOLICITATION_CODE;
      description "No code.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity ROUTER_ADVERTISEMENT_CODE {
      base CODE;
      description
        "Subcodes for the router advertisement ICMPv6 type.";
    }

    identity ROUTER_ADVERTISEMENT_NO_CODE {
      base ROUTER_ADVERTISEMENT_CODE;
      description "No code.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity NEIGHBOR_SOLICITATION_CODE {
      base CODE;
      description
        "Subcodes for the router solicitation ICMPv6 type.";
    }

    identity NEIGHBOR_SOLICITATION_NO_CODE {
      base NEIGHBOR_SOLICITATION_CODE;
      description "No code.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity NEIGHBOR_ADVERTISEMENT_CODE {
      base CODE;
      description
        "Subcodes for the neighbor advertisement ICMPv6 type.";
    }

    identity NEIGHBOR_ADVERTISEMENT_NO_CODE {
      base NEIGHBOR_ADVERTISEMENT_CODE;
      description "No code.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity REDIRECT_CODE {
      base CODE;
      description
        "Subcodes for the redirect ICMPv6 type.";
    }

    identity REDIRECT_NO_CODE {
      base REDIRECT_CODE;
      description "No code.";
      reference
        "RFC4861: Neighbor Discovery for IP version 6 (IPv6)";

    }

    identity RENUMBERING_CODE {
      base CODE;
      description
        "Subcodes for the redirect ICMPv6 type for renumbering.";
    }

    identity RENUMBERING_COMMAND {
      base RENUMBERING_CODE;
      description
        "Router renumbering command.";
      reference
        "RFC2894: Router Renumbering for IPv6";

    }

    identity RENUNBERING_RESULT {
      base RENUMBERING_CODE;
      description
        "Router renumbering result.";
      reference
        "RFC2894: Router Renumbering for IPv6";

    }

    identity RENUNBERING_SEQ_NUM_RESET {
      base RENUMBERING_CODE;
      description
        "Router renumbering sequence number reset.";
      reference
        "RFC2894: Router Renumbering for IPv6";

    }

    identity NODE_INFORMATION_QUERY_CODE {
      base CODE;
      description
        "Subcodes for the node information query ICMPv6 type.";
    }

    identity NODE_INFORMATION_QUERY_IPV6_ADDR {
      base NODE_INFORMATION_QUERY_CODE;
      description
        "The data field contains an IPv6 address which is the subject of the
query.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NODE_INFORMATION_QUERY_NAME {
      base NODE_INFORMATION_QUERY_CODE;
      description
        "The data field contains a name which is the subject of the
query.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NODE_INFORMATION_QUERY_IPV4_ADDR {
      base NODE_INFORMATION_QUERY_CODE;
      description
        "The data field contains an IPv4 address which is the subject of the
query.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NDDE_INFORMATION_RESPONSE_CODE {
      base CODE;
      description
        "Subcodes for the node information response ICMPv6 type.";
    }

    identity NODE_INFORMATION_RESPONSE_SUCCESS {
      base NDDE_INFORMATION_RESPONSE_CODE;
      description "A successful reply.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NODE_INFORMATION_RESPONSE_REFUSED {
      base NDDE_INFORMATION_RESPONSE_CODE;
      description
        "The responder refuses to supply the answer.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity NODE_INFORMATION_RESPONSE_UNKNOWN {
      base NDDE_INFORMATION_RESPONSE_CODE;
      description
        "The query type is unknown to the responder.";
      reference
        "RFC4620: IPv6 Node Information Queries";

    }

    identity INVERSE_NEIGHBOR_ADVERTISEMENT_CODE {
      base CODE;
      description
        "Subcodes for the Inverse Neighbor Discovery ICMPv6 type.";
    }

    identity INVERSE_NEIGHBOR_ADVERTISEMENT_NO_CODE {
      base INVERSE_NEIGHBOR_ADVERTISEMENT_CODE;
      description "No code.";
      reference
        "RFC3122: Extensions to IPv6 Neighbor Discovery for Inverse Discovery
        Specification";

    }

    identity INVERSE_NEIGHBOR_SOLICITATION_CODE {
      base CODE;
      description
        "Subcode for the inverse neighbor solicitation ICMP6 type.";
    }

    identity INVERSE_NEIGHBOR_SOLICITATION_NO_CODE {
      base INVERSE_NEIGHBOR_SOLICITATION_CODE;
      description "No code.";
      reference
        "RFC3122: Extensions to IPv6 Neighbor Discovery for Inverse Discovery
        Specification";

    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REQUEST_CODE {
      base CODE;
      description
        "Subcodes for the Home Agent Address Discovery Request ICMPv6 type.";
    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REQUEST_NO_CODE {
      base HOME_AGENT_ADDRESS_DISCOVERY_REQUEST_CODE;
      description "No code.";
      reference
        "RFC3775: Mobility Support in IPv6";

    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REPLY_CODE {
      base CODE;
      description
        "Subcodes for the Home Agent Address Discovery Reply ICMPv6 type.";
    }

    identity HOME_AGENT_ADDRESS_DISCOVERY_REPLY_NO_CODE {
      base HOME_AGENT_ADDRESS_DISCOVERY_REPLY_CODE;
      description "No code.";
      reference
        "RFC3775: Mobility Support in IPv6";

    }

    identity MOBILE_PREFIX_SOLICITATION_CODE {
      base CODE;
      description
        "Subcodes for the Mobile Prefix Solicitation ICMPv6 type.";
    }

    identity MOBILE_PREFIX_SOLICITATION_NO_CODE {
      base MOBILE_PREFIX_SOLICITATION_CODE;
      description "No code.";
      reference
        "RFC3775: Mobility Support in IPv6";

    }

    identity MOBILE_PREFIX_ADVERTISEMENT_CODE {
      base CODE;
      description
        "Subcodes for the Mobile Prefix Advertisement ICMPv6 type.";
    }

    identity MOBILE_PREFIX_ADVERTISEMENT_NO_CODE {
      base MOBILE_PREFIX_ADVERTISEMENT_CODE;
      description "No code.";
      reference
        "RFC3775: Mobility Support in IPv6";

    }

    identity DUPLICATE_ADDRESS_REQUEST_CODE {
      base CODE;
      description
        "Subcodes for the Duplicate Address Request ICMPv6 type.";
    }

    identity DUPLICATE_ADDRESS_REQUEST_DAR {
      base DUPLICATE_ADDRESS_REQUEST_CODE;
      description "DAR message";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REQUEST_EDAR_ROVR64 {
      base DUPLICATE_ADDRESS_REQUEST_CODE;
      description
        "EDAR message with 64-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REQUEST_EDAR_ROVR128 {
      base DUPLICATE_ADDRESS_REQUEST_CODE;
      description
        "EDAR message with 128-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REQUEST_EDAR_ROVR192 {
      base DUPLICATE_ADDRESS_REQUEST_CODE;
      description
        "EDAR message with 192-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REQUEST_EDAR_ROVR256 {
      base DUPLICATE_ADDRESS_REQUEST_CODE;
      description
        "EDAR message with 256-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REPLY_CODE {
      base CODE;
      description
        "Subcodes for the Duplicate Address Confirmation Code ICMPv6 type.";
    }

    identity DUPLICATE_ADDRESS_REPLY_DAC {
      base DUPLICATE_ADDRESS_REPLY_CODE;
      description "DAC message";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REPLY_EDAC_ROVR64 {
      base DUPLICATE_ADDRESS_REPLY_CODE;
      description
        "EDAC message with 64-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REPLY_EDAC_ROVR128 {
      base DUPLICATE_ADDRESS_REPLY_CODE;
      description
        "EDAC message with 128-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REPLY_EDAC_ROVR192 {
      base DUPLICATE_ADDRESS_REPLY_CODE;
      description
        "EDAC message with 192-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity DUPLICATE_ADDRESS_REPLY_EDAC_ROVR256 {
      base DUPLICATE_ADDRESS_REPLY_CODE;
      description
        "EDAC message with 256-bit ROVR field.";
      reference
        "RFC6775: Neighbor Discovery Optimization for IPv6 over
        Low-Power Wireless Personal Area Networks (6LoWPANs)";

    }

    identity EXT_ECHO_REQUEST_CODE {
      base CODE;
      description
        "Subcodes for the extended echo request ICMPv6 type.";
    }

    identity EXT_ECHO_REQUEST_NO_ERROR {
      base EXT_ECHO_REQUEST_CODE;
      description "No error.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY_CODE {
      base CODE;
      description
        "Subcodes for the extended echo reply ICMPv6 type.";
    }

    identity EXT_ECHO_REPLY_NO_ERROR {
      base EXT_ECHO_REPLY_CODE;
      description "No error.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY_MALFORMED_QUERY {
      base EXT_ECHO_REPLY_CODE;
      description "Malformed query.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY_NO_SUCH_INTERFACE {
      base EXT_ECHO_REPLY_CODE;
      description "No such interface.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY_NO_SUCH_TABLE_ENTRY {
      base EXT_ECHO_REPLY_CODE;
      description "No such table entry.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }

    identity EXT_ECHO_REPLY_MULTIPLE_INTF_SATISFY_QUERY {
      base EXT_ECHO_REPLY_CODE;
      description
        "Multiple interfaces satisfy query.";
      reference
        "RFC8355: PROBE: A Utility for Probing Interfaces";

    }
  }  // module openconfig-icmpv6-types