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: WG List: Editor: Martin Bjorklund "; description "This module contains a collection of YANG definitions for managing IP implementations. Copyright (c) 2017 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 XXXX; see the RFC itself for full legal notices."; revision 2017-12-16 { description "Updated to support NMDA."; reference "RFC XXXX: A YANG Data Model for IP Management"; } revision 2014-06-16 { description "Initial revision."; reference "RFC 7277: A YANG Data Model for IP Management"; } /* * Features */ 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"; } /* * Typedefs */ typedef ip-address-origin { type enumeration { enum other { description "None of the following."; } enum static { description "Indicates that the address has been statically configured - for example, using NETCONF or a Command Line Interface."; } enum dhcp { description "Indicates an address that has been assigned to this system by a DHCP server."; } enum link-layer { description "Indicates an address created by IPv6 stateless autoconfiguration that embeds a link-layer address in its interface identifier."; } enum random { 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 { description "None of the following."; } enum static { description "Indicates that the mapping has been statically configured - for example, using NETCONF or a Command Line Interface."; } enum dynamic { 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."; } /* * Data nodes */ augment "/if:interfaces/if:interface" { description "IP parameters on interfaces. If an interface is not capable of running IP, the server must not allow the client to configure these parameters."; container ipv4 { presence "Enables IPv4 unless the 'enabled' leaf (which defaults to 'true') is set to 'false'"; description "Parameters for the IPv4 address family."; leaf enabled { type boolean; default true; description "Controls whether IPv4 is enabled or disabled on this interface. When IPv4 is enabled, this interface is connected to an IPv4 stack, and the interface can send and receive IPv4 packets."; } leaf forwarding { type boolean; default false; description "Controls IPv4 packet forwarding of datagrams received by, but not addressed to, this interface. IPv4 routers forward datagrams. IPv4 hosts do not (except those source-routed via the host)."; } leaf mtu { type uint16 { range "68..max"; } units octets; description "The size, in octets, of the largest IPv4 packet that the interface will send and receive. The server may restrict the allowed values for this leaf, depending on the interface's type. If this leaf is not configured, the operationally used MTU depends on the interface's type."; reference "RFC 791: Internet Protocol"; } list address { key "ip"; description "The list of IPv4 addresses on the interface."; leaf ip { type inet:ipv4-address-no-zone; description "The IPv4 address on the interface."; } choice subnet { mandatory true; description "The subnet can be specified as a prefix-length, or, if the server supports non-contiguous netmasks, as a netmask."; leaf prefix-length { type uint8 { range "0..32"; } description "The length of the subnet prefix."; } leaf netmask { if-feature ipv4-non-contiguous-netmasks; type yang:dotted-quad; description "The subnet specified as a netmask."; } } leaf origin { type ip-address-origin; config false; description "The origin of this address."; } } list neighbor { key "ip"; description "A list of mappings from IPv4 addresses to link-layer addresses. Entries in this list in the intended configuration are used as static entries in the ARP Cache. In the operational state, this list represents the ARP Cache."; reference "RFC 826: An Ethernet Address Resolution Protocol"; leaf ip { type inet:ipv4-address-no-zone; description "The IPv4 address of the neighbor node."; } leaf link-layer-address { type yang:phys-address; mandatory true; description "The link-layer address of the neighbor node."; } leaf origin { type neighbor-origin; config false; description "The origin of this neighbor entry."; } } } container ipv6 { presence "Enables IPv6 unless the 'enabled' leaf (which defaults to 'true') is set to 'false'"; description "Parameters for the IPv6 address family."; leaf enabled { type boolean; default true; description "Controls whether IPv6 is enabled or disabled on this interface. When IPv6 is enabled, this interface is connected to an IPv6 stack, and the interface can send and receive IPv6 packets."; } leaf forwarding { type boolean; default false; description "Controls IPv6 packet forwarding of datagrams received by, but not addressed to, this interface. IPv6 routers forward datagrams. IPv6 hosts do not (except those source-routed via the host)."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6) Section 6.2.1, IsRouter"; } leaf mtu { type uint32 { range "1280..max"; } units octets; description "The size, in octets, of the largest IPv6 packet that the interface will send and receive. The server may restrict the allowed values for this leaf, depending on the interface's type. If this leaf is not configured, the operationally used MTU depends on the interface's type."; reference "RFC 2460: Internet Protocol, Version 6 (IPv6) Specification Section 5"; } list address { key "ip"; description "The list of IPv6 addresses on the interface."; leaf ip { type inet:ipv6-address-no-zone; description "The IPv6 address on the interface."; } leaf prefix-length { type uint8 { range "0..128"; } mandatory true; description "The length of the subnet prefix."; } leaf origin { type ip-address-origin; config false; description "The origin of this address."; } leaf status { type enumeration { enum preferred { description "This is a valid address that can appear as the destination or source address of a packet."; } enum deprecated { description "This is a valid but deprecated address that should no longer be used as a source address in new communications, but packets addressed to such an address are processed as expected."; } enum invalid { description "This isn't a valid address, and it shouldn't appear as the destination or source address of a packet."; } enum inaccessible { description "The address is not accessible because the interface to which this address is assigned is not operational."; } enum unknown { description "The status cannot be determined for some reason."; } enum tentative { description "The uniqueness of the address on the link is being verified. Addresses in this state should not be used for general communication and should only be used to determine the uniqueness of the address."; } enum duplicate { description "The address has been determined to be non-unique on the link and so must not be used."; } enum optimistic { description "The address is available for use, subject to restrictions, while its uniqueness on a link is being verified."; } } config false; description "The status of an address. Most of the states correspond to states from the IPv6 Stateless Address Autoconfiguration protocol."; reference "RFC 4293: Management Information Base for the Internet Protocol (IP) - IpAddressStatusTC RFC 4862: IPv6 Stateless Address Autoconfiguration"; } } list neighbor { key "ip"; description "A list of mappings from IPv6 addresses to link-layer addresses. Entries in this list in the intended configuration are used as static entries in the Neighbor Cache. In the operational state, this list represents the Neighbor Cache."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6)"; leaf ip { type inet:ipv6-address-no-zone; description "The IPv6 address of the neighbor node."; } leaf link-layer-address { type yang:phys-address; mandatory true; description "The link-layer address of the neighbor node. In the operational state, if the neighbor's 'state' leaf is 'incomplete', this leaf is not instantiated."; } leaf origin { type neighbor-origin; config false; description "The origin of this neighbor entry."; } leaf is-router { type empty; config false; description "Indicates that the neighbor node acts as a router."; } leaf state { type enumeration { enum incomplete { description "Address resolution is in progress, and the link-layer address of the neighbor has not yet been determined."; } enum reachable { description "Roughly speaking, the neighbor is known to have been reachable recently (within tens of seconds ago)."; } enum stale { description "The neighbor is no longer known to be reachable, but until traffic is sent to the neighbor no attempt should be made to verify its reachability."; } enum delay { description "The neighbor is no longer known to be reachable, and traffic has recently been sent to the neighbor. Rather than probe the neighbor immediately, however, delay sending probes for a short while in order to give upper-layer protocols a chance to provide reachability confirmation."; } enum probe { description "The neighbor is no longer known to be reachable, and unicast Neighbor Solicitation probes are being sent to verify reachability."; } } config false; description "The Neighbor Unreachability Detection state of this entry."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6) Section 7.3.2"; } } leaf dup-addr-detect-transmits { type uint32; default 1; description "The number of consecutive Neighbor Solicitation messages sent while performing Duplicate Address Detection on a tentative address. A value of zero indicates that Duplicate Address Detection is not performed on tentative addresses. A value of one indicates a single transmission with no follow-up retransmissions."; reference "RFC 4862: IPv6 Stateless Address Autoconfiguration"; } container autoconf { description "Parameters to control the autoconfiguration of IPv6 addresses, as described in RFC 4862."; reference "RFC 4862: IPv6 Stateless Address Autoconfiguration"; leaf create-global-addresses { type boolean; default true; description "If enabled, the host creates global addresses as described in RFC 4862."; reference "RFC 4862: IPv6 Stateless Address Autoconfiguration Section 5.5"; } leaf create-temporary-addresses { if-feature ipv6-privacy-autoconf; type boolean; default false; description "If enabled, the host creates temporary addresses as described in RFC 4941."; reference "RFC 4941: Privacy Extensions for Stateless Address Autoconfiguration in IPv6"; } leaf temporary-valid-lifetime { if-feature ipv6-privacy-autoconf; type uint32; units "seconds"; default 604800; description "The time period during which the temporary address is valid."; reference "RFC 4941: Privacy Extensions for Stateless Address Autoconfiguration in IPv6 - TEMP_VALID_LIFETIME"; } leaf temporary-preferred-lifetime { if-feature ipv6-privacy-autoconf; type uint32; units "seconds"; default 86400; description "The time period during which the temporary address is preferred."; reference "RFC 4941: Privacy Extensions for Stateless Address Autoconfiguration in IPv6 - TEMP_PREFERRED_LIFETIME"; } } } } /* * Legacy operational state data nodes */ augment "/if:interfaces-state/if:interface" { status deprecated; description "Data nodes for the operational state of IP on interfaces."; container ipv4 { presence "Present if IPv4 is enabled on this interface"; config false; status deprecated; description "Interface-specific parameters for the IPv4 address family."; leaf forwarding { type boolean; status deprecated; description "Indicates whether IPv4 packet forwarding is enabled or disabled on this interface."; } leaf mtu { type uint16 { range "68..max"; } units octets; status deprecated; description "The size, in octets, of the largest IPv4 packet that the interface will send and receive."; reference "RFC 791: Internet Protocol"; } list address { key "ip"; status deprecated; description "The list of IPv4 addresses on the interface."; leaf ip { type inet:ipv4-address-no-zone; status deprecated; description "The IPv4 address on the interface."; } choice subnet { status deprecated; description "The subnet can be specified as a prefix-length, or, if the server supports non-contiguous netmasks, as a netmask."; leaf prefix-length { type uint8 { range "0..32"; } status deprecated; description "The length of the subnet prefix."; } leaf netmask { if-feature ipv4-non-contiguous-netmasks; type yang:dotted-quad; status deprecated; description "The subnet specified as a netmask."; } } leaf origin { type ip-address-origin; status deprecated; description "The origin of this address."; } } list neighbor { key "ip"; status deprecated; description "A list of mappings from IPv4 addresses to link-layer addresses. This list represents the ARP Cache."; reference "RFC 826: An Ethernet Address Resolution Protocol"; leaf ip { type inet:ipv4-address-no-zone; status deprecated; description "The IPv4 address of the neighbor node."; } leaf link-layer-address { type yang:phys-address; status deprecated; description "The link-layer address of the neighbor node."; } leaf origin { type neighbor-origin; status deprecated; description "The origin of this neighbor entry."; } } } container ipv6 { presence "Present if IPv6 is enabled on this interface"; config false; status deprecated; description "Parameters for the IPv6 address family."; leaf forwarding { type boolean; default false; status deprecated; description "Indicates whether IPv6 packet forwarding is enabled or disabled on this interface."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6) Section 6.2.1, IsRouter"; } leaf mtu { type uint32 { range "1280..max"; } units octets; status deprecated; description "The size, in octets, of the largest IPv6 packet that the interface will send and receive."; reference "RFC 2460: Internet Protocol, Version 6 (IPv6) Specification Section 5"; } list address { key "ip"; status deprecated; description "The list of IPv6 addresses on the interface."; leaf ip { type inet:ipv6-address-no-zone; status deprecated; description "The IPv6 address on the interface."; } leaf prefix-length { type uint8 { range "0..128"; } mandatory true; status deprecated; description "The length of the subnet prefix."; } leaf origin { type ip-address-origin; status deprecated; description "The origin of this address."; } leaf status { type enumeration { enum preferred { description "This is a valid address that can appear as the destination or source address of a packet."; } enum deprecated { description "This is a valid but deprecated address that should no longer be used as a source address in new communications, but packets addressed to such an address are processed as expected."; } enum invalid { description "This isn't a valid address, and it shouldn't appear as the destination or source address of a packet."; } enum inaccessible { description "The address is not accessible because the interface to which this address is assigned is not operational."; } enum unknown { description "The status cannot be determined for some reason."; } enum tentative { description "The uniqueness of the address on the link is being verified. Addresses in this state should not be used for general communication and should only be used to determine the uniqueness of the address."; } enum duplicate { description "The address has been determined to be non-unique on the link and so must not be used."; } enum optimistic { description "The address is available for use, subject to restrictions, while its uniqueness on a link is being verified."; } } status deprecated; description "The status of an address. Most of the states correspond to states from the IPv6 Stateless Address Autoconfiguration protocol."; reference "RFC 4293: Management Information Base for the Internet Protocol (IP) - IpAddressStatusTC RFC 4862: IPv6 Stateless Address Autoconfiguration"; } } list neighbor { key "ip"; status deprecated; description "A list of mappings from IPv6 addresses to link-layer addresses. This list represents the Neighbor Cache."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6)"; leaf ip { type inet:ipv6-address-no-zone; status deprecated; description "The IPv6 address of the neighbor node."; } leaf link-layer-address { type yang:phys-address; status deprecated; description "The link-layer address of the neighbor node."; } leaf origin { type neighbor-origin; status deprecated; description "The origin of this neighbor entry."; } leaf is-router { type empty; status deprecated; description "Indicates that the neighbor node acts as a router."; } leaf state { type enumeration { enum incomplete { description "Address resolution is in progress, and the link-layer address of the neighbor has not yet been determined."; } enum reachable { description "Roughly speaking, the neighbor is known to have been reachable recently (within tens of seconds ago)."; } enum stale { description "The neighbor is no longer known to be reachable, but until traffic is sent to the neighbor no attempt should be made to verify its reachability."; } enum delay { description "The neighbor is no longer known to be reachable, and traffic has recently been sent to the neighbor. Rather than probe the neighbor immediately, however, delay sending probes for a short while in order to give upper-layer protocols a chance to provide reachability confirmation."; } enum probe { description "The neighbor is no longer known to be reachable, and unicast Neighbor Solicitation probes are being sent to verify reachability."; } } status deprecated; description "The Neighbor Unreachability Detection state of this entry."; reference "RFC 4861: Neighbor Discovery for IP version 6 (IPv6) Section 7.3.2"; } } } } }