Diameter Maintenance and J. Korhonen, Ed.
Extensions (DIME) Nokia Siemens Network
Internet-Draft J. Bournelle
Intended status: Standards Track Orange Labs
Expires: September 7, 2009 K. Chowdhury
Starent Networks
A. Muhanna
Nortel
U. Meyer
RWTH Aachen
March 6, 2009
Diameter Proxy Mobile IPv6: Mobile Access Gateway and Local Mobility
Anchor Interaction with Diameter Server
draft-ietf-dime-pmip6-01.txt
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Abstract
This specification defines the Diameter support for the Proxy Mobile
IPv6 and the corresponding mobility service session setup. The
policy information needed by the Proxy Mobile IPv6 is defined in
mobile node's policy profile, which could be downloaded from the
Diameter server to the Mobile Access Gateway once the mobile node
attaches to a Proxy Mobile IPv6 Domain and performs access
authentication. During the binding update exchange between the
Mobile Access Gateway and the Local Mobility Anchor, the Local
Mobility Anchor can interact with the Diameter server in order to
update the remote policy store with the mobility session related
information.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology and Abbreviations . . . . . . . . . . . . . . . . 4
3. Solution Overview . . . . . . . . . . . . . . . . . . . . . . 5
4. Attribute Value Pair Definitions . . . . . . . . . . . . . . . 7
4.1. MIP6-Agent-Info AVP . . . . . . . . . . . . . . . . . . . 7
4.2. PMIP6-IPv4-Home-Address AVP . . . . . . . . . . . . . . . 7
4.3. MIP6-Home-Link-Prefix AVP . . . . . . . . . . . . . . . . 8
4.4. PMIP6-DHCP-Server-Address AVP . . . . . . . . . . . . . . 8
4.5. MIP6-Feature-Vector AVP . . . . . . . . . . . . . . . . . 8
4.6. Mobile-Node-Identifier AVP . . . . . . . . . . . . . . . . 9
4.7. Calling-Station-Id AVP . . . . . . . . . . . . . . . . . . 9
4.8. Service-Selection AVP . . . . . . . . . . . . . . . . . . 10
4.9. Service-Configuration AVP . . . . . . . . . . . . . . . . 10
5. Application Support and Command Codes . . . . . . . . . . . . 11
5.1. MAG-to-HAAA Interface . . . . . . . . . . . . . . . . . . 11
5.2. LMA-to-HAAA Interface . . . . . . . . . . . . . . . . . . 11
5.2.1. Authorization of the Proxy Binding Update . . . . . . 12
6. Proxy Mobile IPv6 Session Management . . . . . . . . . . . . . 12
6.1. Session-Termination-Request . . . . . . . . . . . . . . . 13
6.2. Session-Termination-Answer . . . . . . . . . . . . . . . . 13
6.3. Abort-Session-Request . . . . . . . . . . . . . . . . . . 13
6.4. Abort-Session-Answer . . . . . . . . . . . . . . . . . . . 13
7. Attribute Value Pair Occurrence Tables . . . . . . . . . . . . 13
7.1. MAG-to-HAAA Interface . . . . . . . . . . . . . . . . . . 14
7.2. LMA-to-HAAA Interface . . . . . . . . . . . . . . . . . . 14
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
8.1. Attribute Value Pair Codes . . . . . . . . . . . . . . . . 14
8.2. Namespaces . . . . . . . . . . . . . . . . . . . . . . . . 15
8.3. Result-Code AVP Values . . . . . . . . . . . . . . . . . . 15
9. Security Considerations . . . . . . . . . . . . . . . . . . . 15
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 15
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11.1. Normative References . . . . . . . . . . . . . . . . . . . 16
11.2. Informative References . . . . . . . . . . . . . . . . . . 16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 17
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1. Introduction
In the Proxy Mobile IPv6 (PMIPv6) protocol [RFC5213] and IPv4 support
for Proxy Mobile IPv6 [I-D.ietf-netlmm-pmip6-ipv4-support] a Mobile
Access Gateway (MAG) performs a proxy registration with a Local
Mobility Anchor (LMA) on behalf of the mobile node (MN). In order to
perform the proxy registration the MAG needs the IP address of the
LMA, possibly MN's Home Network Prefix(es) (MN-HNP), MN's IPv4 home
address (IPv4-MN-HoA), DHCP server address and other PMIPv6 specific
information such as the allowed address configuration modes and
roaming related policies. All this information is defined in MN's
policy profile that gets downloaded from the Diameter server to the
MAG once the MN attaches to the MAG's Proxy Mobile IPv6 Domain
(PMIPv6 Domain) and performs the access authentication.
Dynamic assignment and downloading of PMIPv6 policy profile
information is a desirable feature to ease the deployment and network
maintenance of larger PMIPv6 deployments. For this purpose, the
Authentication, Authorization, and Accounting (AAA) infrastructure,
which is used for access authentication, can be leveraged to assign
some or all of the necessary parameters. The Diameter server in the
Mobility Service authorizer's (MSA) network may return these
parameters to the Network Access Server (NAS).
Once the MN authenticates to the network the MAG sends a Proxy
Binding Update (PBU) towards the LMA on behalf of the MN. When the
LMA receives the PBU, the LMA may need to update the remote policy
store located in the MSA with the MN's mobility session related
information.
This specification defines the Diameter support for PMIPv6. In the
context of this specification the location of the subscriber policy
profile equals to the home Diameter server, which is also referred as
the home AAA server (HAAA). The NAS functionality of the MAG may be
co-located or an integral part of the MAG.
2. Terminology and Abbreviations
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC2119 [RFC2119].
The general terminology used in this document can be found in
[RFC5213] and [I-D.ietf-netlmm-pmip6-ipv4-support]. The following
additional or clarified terms are also used in this document:
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Network Access Server (NAS):
A device that provides an access service for a user to a network.
In the context of this document the NAS may be integrated into or
co-located to a MAG. The NAS contains a Diameter client function.
Home AAA (HAAA):
An Authentication, Authorization, and Accounting (AAA) server
located in user's home network. A HAAA is essentially a Diameter
server.
3. Solution Overview
This document addresses the AAA interactions and AAA-based session
management functionality needed in the PMIPv6 Domain. This document
defines Diameter based AAA interactions between the MAG and the HAAA,
and between the LMA and the HAAA.
The policy profile is downloaded from the HAAA to the MAG during the
MN attachment to the PMIPv6 Domain. Figure 1 shows the participating
network entities. This document, however, concentrates on the MAG,
LMA, and the home Diameter server.
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+--------+
| HAAA & | Diameter +-----+
| Policy |<---(2)-->| LMA |
| Profile| +-----+
+--------+ | <--- LMA-Address
^ |
| // \\
+---|------------- //---\\----------------+
( | IPv4/IPv6 // \\ )
( | Network // \\ )
+---|-----------//---------\\-------------+
| // \\
Diameter // <- Tunnel1 \\ <- Tunnel2
(1) // \\
| |- MAG1-Address |- MAG2-Address
| +----+ +----+
+---->|MAG1| |MAG2|
+----+ +----+
| |
| |
[MN1] [MN2]
Legend:
(1): MAG-to-HAAA interaction is described
in Section 5.1
(2): LMA-to-HAAA interaction is described
in Section 5.2
Figure 1: Proxy Mobile IPv6 Domain Interaction with Diameter HAAA
Server
When a MN attaches to a PMIPv6 Domain, a network access
authentication procedure is usually started. The choice of the
authentication mechanism is specific to the access network
deployment, but could be based on the Extensible Authentication
Protocol (EAP) [RFC3748]. During the network access authentication
procedure, the MAG acting as a NAS queries the HAAA through the AAA
infrastructure using the Diameter protocol. If the HAAA detects that
the subscriber is also authorized for the PMIPv6 service, PMIPv6
specific information is returned along with the successful network
access authentication answer to the MAG.
After the MN has been successfully authenticated, the MAG sends a PBU
to the LMA based on the MN's policy profile information. Upon
receiving the PBU the LMA interacts with the HAAA and fetches the
relevant parts of the subscriber policy profile and authorization
information related to the mobility service session. In this
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specification, the HAAA has the role of the PMIPv6 remote policy
store.
4. Attribute Value Pair Definitions
This section describes Attribute Value Pairs (AVPs) defined by this
specification or re-used from existing specifications in a PMIPv6
specific way.
4.1. MIP6-Agent-Info AVP
The MIP6-Agent-Info grouped AVP (AVP Code 486) is defined in
[RFC5447]. The AVP is used to carry LMA addressing related
information and a MN-HNP. This specification extends the MIP6-Agent-
Info with the PMIP6-IPv4-Home-Address AVP using the Diameter
extensibility rules defined in [RFC3588]. The PMIP6-IPv4-Home-
Address AVP contains the IPv4-MN-HoA.
The extended MIP6-Agent-Info AVP results to the following grouped
AVP:
MIP6-Agent-Info ::= < AVP-Header: 486 >
*2[ MIP-Home-Agent-Address ]
[ MIP-Home-Agent-Host ]
[ MIP6-Home-Link-Prefix ]
[ PMIP6-IPv4-Home-Address ]
* [ AVP ]
4.2. PMIP6-IPv4-Home-Address AVP
The PMIP6-IPv4-Home-Address AVP (AVP Code TBD2) is of type Address
and contains an IPv4 address. This AVP is used to carry the IPv4-MN-
HoA, if available, from the HAAA to the MAG. This AVP SHOULD only be
present when the MN is statically provisioned with the IPv4-MN-HoA.
Note that proactive dynamic assignment of the IPv4-MN-HoA by the HAAA
may result in unnecessary reservation of IPv4 address resources,
because the MN may considerably delay or completely bypass its IPv4
address configuration.
The PMIP6-IPv4-Home-Address AVP is also used on the LMA-to-HAAA
interface. The AVP contains the IPv4-MN-HoA assigned to the MN. If
the LMA delegates the assignment of the IPv4-MN-HoA to the HAAA, the
AVP MUST contain all zeroes IPv4 address (i.e., 0.0.0.0) in the
request message. If the LMA delegated the IPv4-MN-HoA assignment to
the HAAA, then the AVP contains the HAAA assigned IPv4-MN-HoA in the
response message.
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4.3. MIP6-Home-Link-Prefix AVP
The MIP6-Home-Link-Prefix AVP (AVP Code 125) is defined in [RFC5447].
This AVP is used to carry the MN-HNP, if available, from the HAAA to
the MAG. The low 64 bits of the prefix MUST be all zeroes.
The MIP6-Home-Link-Prefix AVP is also used on the LMA-to-HAAA
interface. The AVP contains the prefix assigned to the MN. If the
LMA delegates the assignment of the MN-HNP to the HAAA, the AVP MUST
contain all zeroes address (i.e., 0::0) in the request message. If
the LMA delegated the MN-HNP assignment to the HAAA, then the AVP
contains the HAAA assigned MNM-HNP in the response message.
4.4. PMIP6-DHCP-Server-Address AVP
The PMIP6-DHCP-Server-Address AVP (AVP Code TBD1) is of type Address
and contains the IP address of the DHCPv4 and/or DHCPv6 server
assigned to the MAG serving the newly attached MN. If the AVP
contains a DHCPv4 server address, then the Address type MUST be IPv4.
If the AVP contains a DHCPv6 server address, then the Address type
MUST be IPv6. The HAAA MAY assign a DHCP server to the MAG in
deployments where the MAG acts as a DHCP Relay
[I-D.ietf-netlmm-pmip6-ipv4-support].
4.5. MIP6-Feature-Vector AVP
The MIP6-Feature-Vector AVP is originally defined in [RFC5447]. This
document defines new capability flag bits according to the rules in
[RFC5447].
PMIP6_SUPPORTED (0x0000010000000000)
When the MAG/NAS sets this bit in the MIP6-Feature-Vector AVP, it
is an indication to the HAAA that the NAS supports PMIPv6. When
the HAAA sets this bit in the response MIP6-Feature-Vector AVP, it
indicates that the HAAA also has PMIPv6 support. This capability
bit can also be used to allow PMIPv6 mobility support in a
subscription granularity.
IP4_HOA_SUPPORTED (0x0000020000000000)
Assignment of the IPv4-MN-HoA is supported. When the MAG sets
this bit in the MIP6-Feature-Vector AVP, it indicates that the MAG
implements a minimal functionality of a DHCP server (and a relay)
and is able to deliver IPv4-MN-HoA to the MN. When the HAAA sets
this bit in the response MIP6-Feature-Vector AVP, it indicates
that the HAAA has authorized the use of IPv4-MN-HoA for the MN.
If this bit is unset in the returned MIP6-Feature-Vector AVP, the
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HAAA does not authorize the configuration of IPv4 address.
LOCAL_MAG_ROUTING_SUPPORTED (0x0000040000000000)
Direct routing of IP packets between MNs anchored to the same MAG
is supported. When a MAG sets this bit in the MIP6-Feature-
Vector, it indicates that routing IP packets between MNs anchored
to the same MAG is supported, without reverse tunneling packets
via the LMA or requiring any Route Optimization related signaling
(e.g. the Return Routability Procedure in [RFC3775]) prior direct
routing. If this bit is unset in the returned MIP6-Feature-Vector
AVP, the HAAA does not authorize direct routing of packets between
MNs anchored to the same MAG. This policy feature SHOULD be
supported per MN and subscription basis.
The MIP6-Feature-Vector AVP is also used on the LMA to HAAA
interface. Using the capability announcement AVP it is possible to
perform a simple capability negotiation between the LMA and the HAAA.
Those capabilities that are announced by both parties are also known
to be mutually supported. The capabilities listed in earlier are
also supported in the LMA to HAAA interface. The LMA to HAAA
interface does not define any new capability values.
4.6. Mobile-Node-Identifier AVP
The Mobile-Node-Identifier AVP (AVP Code TBD3) is of type UTF8String
and contains the mobile node identifier (MN-Identifier, see
[RFC5213]) in the NAI [RFC4282] format. This AVP is used on the MAG-
to-HAAA interface. The Mobile-Node-Identifier AV is designed for
deployments where the MAG does not have a way to find out such MN
identity that could be used in subsequent PBU/PBA exchanges (e.g.,
due to identity hiding during the network access authentication) or
the HAAA wants to assign periodically changing identities to the MN.
The Mobile-Node-Identifier AVP is returned in the answer message that
ends a successful authentication (and possibly an authorization)
exchange between the MAG and the HAAA, assuming the HAAA is also able
to provide the MAG with the MN-Identifier in the first place. The
MAG MUST use the received MN-Identifier, if it has not been able to
get the mobile node identifier through other means. If the MAG
already has a valid mobile node identifier, then the MAG MUST
silently discard the received MN-identifier.
4.7. Calling-Station-Id AVP
The Calling-Station-Id AVP (AVP Code 31) is of type UTF8String and
contains a Link-Layer Identifier of the MN. This identifier
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corresponds to the Link-Layer Identifier as defined in RFC 5213
Section 2.2. and 8.6.
4.8. Service-Selection AVP
The Service-Selection AVP (AVP Code TBD) is of type UTF8String and
contains a LMA provided service identifier on the LMA-to-HAAA
interface. This AVP is re-used from [I-D.ietf-dime-mip6-split]. The
service identifier may be used to assist the PBU authorization and
the assignment of the MN-HNP and the IPv4-MN-HoA as described in RFC
5149 [RFC5149]. The identifier MUST be unique within the PMIPv6
Domain. In the absence of the Service-Selection AVP in the request
message, the HAAA may want to inform the LMA of the default service
provisioned to the MN and include the Service-Selection AVP in the
response message.
It is also possible that the MAG receives the service selection
information from the MN, for example, via some lower layer mechanism.
In this case the MAG SHOULD include the Service-Selection AVP also in
the MAG-to-HAAA request messages. In absence of the Service-
Selection AVP in the MAG-to-HAAA request messages, the HAAA may want
to inform the MAG of the default service provisioned to the MN and
include the Service-Selection AVP in the response message.
Whenever the Service-Selection AVP is included either in a request
message or in a response message, and the AAA interaction with HAAA
completes successfully, it is an indication that the HAAA also
authorized the MN to some service. This should be taken into account
when considering what to include in the Auth-Request-Type AVP.
The service selection concept supports signaling one service at time.
However, the MN policy profile MAY support multiple services being
used simultaneously. For this purpose, the HAAA MAY return multiple
LMA and service pairs (see Section 4.9) to the MAG in a response
message that ends a successful authentication (and possibly an
authorization) exchange between the MAG and the HAAA. Whenever the
MN initiates additional mobility session to another service (using a
link layer or deployment specific method), the provisioned service
information is already contained in the MAG. Therefore, there is no
need for additional AAA signaling between the MAG and the HAAA.
4.9. Service-Configuration AVP
The Service-Configuration AVP (AVP Code TBD4) is of type Grouped and
contains a service and a LMA pair. The HAAA can use this AVP to
inform the MAG of MN's subscribed services and LMAs where those
services are hosted in.
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Service-Configuration ::= < AVP-Header: TBD4 >
[ MIP6-Agent-Info ]
[ Service-Selection ]
* [ AVP ]
5. Application Support and Command Codes
5.1. MAG-to-HAAA Interface
This specification does not define a new Application-ID for the MAG-
to-HAAA Diameter connection. Rather, this specification re-uses any
Diameter application and their commands that are used to authenticate
and authorize the MN for the network access. Example applications
include NASREQ [RFC4005] and EAP [RFC4072]. The MAG acts as a
Diameter client.
The MAG-to-HAAA interactions are primarily used for bootstrapping
PMIPv6 mobility service session when a MN attaches and authenticates
to a PMIPv6 Domain. This includes the bootstrapping of PMIPv6
session related information. The same interface may also be used for
accounting.
Whenever the MAG sends a Diameter request message to the HAAA the
User-Name AVP SHOULD contain the MN's identity. The MN identity, if
available, MUST be in Network Access Identifier (NAI) [RFC4282]
format. At minimum the home realm of the MN MUST be available at the
MAG when the network access authentication takes place. Otherwise
the MAG is not able to route the Diameter request messages towards
the correct HAAA. The MN identity used on the MAG-to-HAAA interface
and in the User-Name AVP MAY entirely be related to the network
access authentication, and therefore not suitable to be used as the
MN-ID mobility option value in the subsequent PBU/PBA messages. See
the related discussion on MN's identities in Section 4.6 and in
Section 5.2.1
For the session management and service authorization purposes,
session state SHOULD be maintained on the MAG-to-HAAA interface. See
the discussion in Section 4.8.
5.2. LMA-to-HAAA Interface
The-LMA-to HAAA interface may be used for multiple purposes. These
include the authorization of the incoming PBU, updating the LMA
address to the HAAA, accounting and PMIPv6 session management.
This specification does not define a new Application-ID for the LMA-
to-HAAA Diameter connection. Rather, this specification re-uses any
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Diameter application and their commands. An example application
could be NASREQ [RFC4005]. The LMA acts as a Diameter client.
5.2.1. Authorization of the Proxy Binding Update
Whenever the LMA sends a Diameter request message to the HAAA, the
User-Name AVP SHOULD contain the MN's identity. The LMA MAY retrieve
the MN's identity information from the PBU MN-ID [RFC4283][RFC5213]
mobility option. The identity SHOULD be the same as used on the MAG-
to-HAAA interface, but in the case those identities differ the HAAA
MUST have a mechanism of mapping the MN identity used on the MAG-to-
HAAA interface to the identity used on the LMA-to-HAAA interface.
If the PBU contains the MN Link-Layer Identifier option, the Calling-
Station-Id AVP SHOULD be included in the request message containing
the received Link-Layer Identifier. Furthermore, if the PBU contains
the Service Selection mobility option [RFC5149], the Service-
Selection AVP SHOULD be included in the request message containing
the received service identifier.
The LMA and the HAAA use the MIP6-Home-Link-Prefix AVP to exchange
the MN-HNP when appropriate. Similarly, the LMA and the HAAA use the
PMIP6-IPv4-Home-Address AVP to exchange the IPv4-MN-HoA when
appropriate. Note that these AVPs are encapsulated inside the MIP6-
Agent-Info AVP. Which entity is actually responsible for the address
management is a deployment specific within the PMIPv6 Domain and MUST
be pre-agreed on per deployment basis.
The Auth-Request-Type AVP MUST be set to the value AUTHORIZE_ONLY.
If the HAAA is not able to authorize the subscriber's mobility
service session, then the reply message to the LMA MUST have the
Result-Code AVP set to value DIAMETER_PMIP6_AUTHORIZATION_FAILED
(TBD5) indicating a permanent failure.
The LMA-to-HAAA interface can also be used to update the selected LMA
address to the HAAA and the remote policy store during the
authorization step. This applies to the case where the MAG, for
example, discovered the LMA address using the DNS.
6. Proxy Mobile IPv6 Session Management
Concerning a PMIPv6 mobility session, the HAAA, the MAG and the LMA
Diameter entities SHOULD be stateful and maintain the corresponding
Authorization Session State Machine defined in [RFC3588]. If a state
is maintained, then a PMIPv6 mobility session that can be identified
by any of the Binding Cache (BCE) Lookup Keys described in RFC 5213
(see Sections 5.4.1.1., 5.4.1.2. and 5.4.1.3.) MUST map to a single
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Diameter Session-Id. If the PMIPv6 Domain allows further separation
of sessions, for example, identified by the RFC 5213 BCE Lookup Keys
and the service selection combination (see Section 4.8 and
[RFC5149]), then a single Diameter Session-Id MUST map to a PMIPv6
mobility session identified by the RFC 5213 BCE Lookup Keys and the
selected service.
If both the MAG-to-HAAA and the LMA-to-HAAA interfaces are deployed
in a PMIPv6 Domain, and a state is maintained on both interfaces,
then one PMIPv6 mobility session would have two distinct Diameter
sessions on the HAAA. The HAAA needs to be aware of this deployment
possibility and SHOULD allow multiple Diameter sessions for the same
PMIPv6 mobility session.
Diameter session termination related commands described in the
following sections may be exchanged between the LMA and the HAAA, or
between the MAG and the HAAA. The actual PMIPv6 session termination
procedures take place at PMIPv6 protocol level and are described in
more detail in RFC 5213 and [I-D.ietf-mext-binding-revocation].
6.1. Session-Termination-Request
The LMA or the MAG MAY send the Session-Termination-Request (STR)
command [RFC3588] to the HAAA and inform the termination of an
ongoing PMIPv6 session is in progress.
6.2. Session-Termination-Answer
The Session-Termination-Answer (STA) [RFC3588] is sent by the HAAA to
acknowledge the termination of a PMIPv6 session.
6.3. Abort-Session-Request
The HAAA MAY send the Abort-Session-Request (ASR) command [RFC3588]
to the LMA or to the MAG and request termination of a PMIPv6 session.
6.4. Abort-Session-Answer
The Abort-Session-Answer (ASA) command [RFC3588]is sent by the LMA or
the MAG to acknowledge that the termination of a PMIPv6 session.
7. Attribute Value Pair Occurrence Tables
The following tables list the PMIPv6 MAG-to-HAAA interface and LMA-
to-HAAA interface AVPs including those that are defined in [RFC5447].
The Figure 2 contains the AVPs and their occurrences on the MAG-to-
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HAAA interface. The AVPs that are part of grouped AVP are not listed
in the table, rather only the grouped AVP is listed.
7.1. MAG-to-HAAA Interface
+---------------+
| Command-Code |
|-------+-------+
Attribute Name | REQ | ANS |
-------------------------------+-------+-------+
PMIP6-DHCP-Server-Address | 0 | 0+ |
MIP6-Agent-Info | 0+ | 0+ |
MIP6-Feature-Vector | 0-1 | 0-1 |
Mobile-Node-Identifier | 0-1 | 0-1 |
Calling-Station-Id | 0-1 | 0 |
Service-Selection | 0-1 | 0 |
Service-Configuration | 0 | 0+ |
+-------+-------+
Figure 2: MAG-to-HAAA Interface Generic Diameter Request and Answer
Commands AVPs
7.2. LMA-to-HAAA Interface
+---------------+
| Command-Code |
|-------+-------+
Attribute Name | REQ | ANS |
-------------------------------+-------+-------+
MIP6-Agent-Info | 0-1 | 0-1 |
MIP6-Feature-Vector | 0-1 | 0-1 |
Calling-Station-Id | 0-1 | 0 |
Service-Selection | 0-1 | 0-1 |
User-Name | 0-1 | 0-1 |
+-------+-------+
Figure 3: LMA-to-HAAA Interface Generic Diameter Request and Answer
Commands AVPs
8. IANA Considerations
8.1. Attribute Value Pair Codes
This specification defines the following new AVPs:
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PMIP6-DHCP-Server-Address is set to TBD1
PMIP6-IPv4-Home-Address is set to TBD2
Mobile-Node-Identifier is set to TBD3
Service-Configuration is set to TBD4
8.2. Namespaces
This specification defines new values to the Mobility Capability
registry (see [RFC5447]) for use with the MIP6-Feature-Vector AVP:
Token | Value | Description
---------------------------------+----------------------+------------
PMIP6_SUPPORTED | 0x0000010000000000 | [RFC TBD]
IP4_HOA_SUPPORTED | 0x0000020000000000 | [RFC TBD]
LOCAL_MAG_ROUTING_SUPPORTED | 0x0000040000000000 | [RFC TBD]
8.3. Result-Code AVP Values
This specification requests IANA to allocate a new value to the
Result-Code AVP (AVP Code 268) address space within the Permanent
Failures category (5xxx) defined in [RFC3588]:
DIAMETER_PMIP6_AUTHORIZATION_FAILED is set to TBD5
9. Security Considerations
The security considerations of the Diameter Base protocol [RFC3588],
Diameter EAP application [RFC4072], Diameter NASREQ application
[RFC4005] and Diameter Mobile IPv6 integrated scenario bootstrapping
[RFC5447] are applicable to this document.
In general, the Diameter messages may be transported between the HA
and the Diameter server via one or more AAA brokers or Diameter
agents. In this case the HA to the Diameter server AAA communication
rely on the security properties of the intermediate AAA brokers and
Diameter agents (such as proxies).
10. Acknowledgements
Jouni Korhonen would like to thank the TEKES GIGA program MERCoNe-
project for providing funding to work on this document while he was
with TeliaSonera.
11. References
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11.1. Normative References
[I-D.ietf-netlmm-pmip6-ipv4-support]
Wakikawa, R. and S. Gundavelli, "IPv4 Support for Proxy
Mobile IPv6", draft-ietf-netlmm-pmip6-ipv4-support-09
(work in progress), January 2009.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3588] Calhoun, P., Loughney, J., Guttman, E., Zorn, G., and J.
Arkko, "Diameter Base Protocol", RFC 3588, September 2003.
[RFC4005] Calhoun, P., Zorn, G., Spence, D., and D. Mitton,
"Diameter Network Access Server Application", RFC 4005,
August 2005.
[RFC4072] Eronen, P., Hiller, T., and G. Zorn, "Diameter Extensible
Authentication Protocol (EAP) Application", RFC 4072,
August 2005.
[RFC4282] Aboba, B., Beadles, M., Arkko, J., and P. Eronen, "The
Network Access Identifier", RFC 4282, December 2005.
[RFC5213] Gundavelli, S., Leung, K., Devarapalli, V., Chowdhury, K.,
and B. Patil, "Proxy Mobile IPv6", RFC 5213, August 2008.
[RFC5447] Korhonen, J., Bournelle, J., Tschofenig, H., Perkins, C.,
and K. Chowdhury, "Diameter Mobile IPv6: Support for
Network Access Server to Diameter Server Interaction",
RFC 5447, February 2009.
11.2. Informative References
[I-D.ietf-dime-mip6-split]
Korhonen, J., Tschofenig, H., Bournelle, J., Giaretta, G.,
and M. Nakhjiri, "Diameter Mobile IPv6: Support for Home
Agent to Diameter Server Interaction",
draft-ietf-dime-mip6-split-16 (work in progress),
December 2008.
[I-D.ietf-mext-binding-revocation]
Muhanna, A., Khalil, M., Gundavelli, S., Chowdhury, K.,
and P. Yegani, "Binding Revocation for IPv6 Mobility",
draft-ietf-mext-binding-revocation-03 (work in progress),
January 2009.
[RFC3748] Aboba, B., Blunk, L., Vollbrecht, J., Carlson, J., and H.
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Levkowetz, "Extensible Authentication Protocol (EAP)",
RFC 3748, June 2004.
[RFC3775] Johnson, D., Perkins, C., and J. Arkko, "Mobility Support
in IPv6", RFC 3775, June 2004.
[RFC4283] Patel, A., Leung, K., Khalil, M., Akhtar, H., and K.
Chowdhury, "Mobile Node Identifier Option for Mobile IPv6
(MIPv6)", RFC 4283, November 2005.
[RFC5149] Korhonen, J., Nilsson, U., and V. Devarapalli, "Service
Selection for Mobile IPv6", RFC 5149, February 2008.
Authors' Addresses
Jouni Korhonen (editor)
Nokia Siemens Network
Linnoitustie 6
Espoo FI-02600
Finland
Email: jouni.nospam@gmail.com
Julien Bournelle
Orange Labs
38-4O rue du general Leclerc
Issy-Les-Moulineaux 92794
France
Email: julien.bournelle@orange-ftgroup.com
Kuntal Chowdhury
Starent Networks
30 International Place
Tewksbury MA 01876
USA
Email: kchowdhury@starentnetworks.com
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Ahmad Muhanna
Nortel
2221 Lakeside Blvd.
Richardson, TX 75082
USA
Email: amuhanna@nortel.com
Ulrike Meyer
RWTH Aachen
Email: meyer@umic.rwth-aachen.de
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