SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
(Main)Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP delivery - Part 3: Service-specific details for internet access services
Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP delivery - Part 3: Service-specific details for internet access services
The present document contains a stage 1 description of the interception information in relation to the process of binding
a "target identity" to an IP address when providing Internet access and a stage 2 description of when Intercept Related
Information (IRI) and Content of Communication (CC) need to be sent, and what information it needs to contain.
The present document includes but is not restricted to IRI based on application of Dynamic Host Configuration Protocol
(DHCP) and Remote Authentication Dial-In User Service (RADIUS) technology for binding a "target identity" to an IP
address and CC for the intercepted IP packets.
The definition of the Handover Interface 2 (HI2) and Handover Interface 3 (HI3) is outside the scope of the present
document. For the handover interface is referred to ETSI TS 102 232-1 [2].
Zakonito prestrezanje (LI) - Izročilni vmesnik in storitveno specifične podrobnosti (SSD) za IP-dostavo vsebin - 3. del: Storitveno specifične podrobnosti za storitve internetnega dostopa
Ta dokument vsebuje opis 1. stopnje za informacije o prestrezanju v zvezi s postopkom povezave »ciljne identitete« z naslovom IP pri zagotavljanju internetnega dostopa in opis 2. stopnje o tem, kdaj je treba poslati podatke o prestreženi komunikaciji (IRI) ali vsebino komunikacije (CC) in katere informacije morajo biti vključene.
Ta dokument med drugim vključuje podatke o prestreženi komunikaciji, ki temeljijo na uporabi tehnologije omrežnega protokola za dinamično nastavitev gostitelja (DHCP) in protokola, ki omogoča centralno preverjanje avtentičnosti oddaljenega uporabnika (RADIUS) za povezovanje »ciljne identitete« z naslovom IP in vsebino komunikacije s prestreženimi paketi IP.
Opredelitev izročilnega vmesnika 2 (HI2) in izročilnega vmesnika 3 (HI3) ne spada na področje uporabe tega dokumenta. Izročilni vmesnik je omenjen v standardu ETSI TS 102 232-1 [2].
General Information
Buy Standard
Standards Content (Sample)
ETSI TS 102 232-3 V3.11.1 (2023-03)
TECHNICAL SPECIFICATION
Lawful Interception (LI);
Handover Interface and
Service-Specific Details (SSD) for IP delivery;
Part 3: Service-specific details for internet access services
---------------------- Page: 1 ----------------------
2 ETSI TS 102 232-3 V3.11.1 (2023-03)
Reference
RTS/LI-00236-3
Keywords
access, internet, IP, lawful interception, security,
service
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
https://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
n or warranty is made of merchantability or fitness
and/or governmental rule and/or regulation and further, no representatio
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2023.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI TS 102 232-3 V3.11.1 (2023-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 9
3.3 Abbreviations . 9
4 General . 11
4.1 Internet Access Service (IAS) . 11
4.2 Target identity and IP address . 11
4.3 Lawful Interception requirements . 12
4.3.0 Introduction. 12
4.3.1 Target identity . 12
4.3.2 Result of interception . 12
4.3.3 Intercept related information messages. 13
4.3.4 Time constraints . 13
4.3.5 Preventing over and under collection of intercept data . 13
5 System model . 14
5.1 Reference network topologies . 14
5.1.0 Introduction. 14
5.1.1 Dial-up access . 14
5.1.2 xDSL access. 15
5.1.3 Cable modem access . 16
5.1.4 IEEE 802.11 Access (with Wireless LAN profile) . 17
5.2 Reference scenarios . 17
5.2.1 Logon . 17
5.2.2 Multi logon . 17
5.2.3 Multilink logon . 17
5.2.4 IP transport. 18
5.2.5 Logoff . 18
5.2.6 Connection loss . 18
6 Intercept Related Information (IRI) . 18
6.1 IRI events . 18
6.2 HI2 attributes . 20
6.2.0 List of HI2 attributes . 20
6.2.1 Use of targetIPAddress, additionalIPAddress and otherTargetIdentifiers fields . 21
6.2.2 Use of location field . 22
6.2.3 Packet Data Header Reporting (PDHR). 22
6.2.3.1 General . 22
6.2.3.2 IPv4Information . 22
6.2.3.3 IPv6Information . 22
6.2.3.4 TCPInformation . 22
6.2.3.5 UDPInformation . 23
6.2.4 Packet Data Summary Reporting (PDSR) . 23
6.2.4.1 General . 23
6.2.4.2 Packet flow . 23
6.2.4.3 Triggers . 23
ETSI
---------------------- Page: 3 ----------------------
4 ETSI TS 102 232-3 V3.11.1 (2023-03)
6.2.4.4 Use of the IPIRIOnly record . 24
7 Content of Communication (CC) . 24
7.1 CC events . 24
7.2 HI3 attributes . 24
8 ASN.1 for IRI and CC . 24
Annex A (informative): Stage 1 - RADIUS characteristics . 25
A.1 Network topology . 25
A.1.0 RADIUS deployment options. 25
A.1.1 RADIUS server . 25
A.1.2 RADIUS proxy . 26
A.2 RADIUS service . 27
A.2.1 Authentication service . 27
A.2.2 Accounting service . 27
A.2.3 IPv6 . 28
A.3 RADIUS protocol . 28
A.3.1 Authentication protocol . 28
A.3.2 Accounting protocol . 29
A.4 RADIUS main attributes . 29
A.5 RADIUS interception . 30
A.5.0 Introduction . 30
A.5.1 Collecting RADIUS packets. 30
A.5.2 Processing RADIUS packets . 30
A.5.2.1 Mapping events to RADIUS packets . 30
A.5.2.2 Functional model . 31
A.5.2.3 RADIUS spoofing . 35
A.5.2.4 Mapping of Acct-Terminate-Cause to endReason . 35
A.5.2.5 Use of Event-Time . 35
A.5.2.6 Use of targetIPAddress, additionalIPAddress and otherTargetIdentifiers fields . 36
A.5.3 Mapping RADIUS on the IRI structure . 36
Annex B (informative): Stage 1 - DHCP characteristics . 40
B.1 Network topology . 40
B.2 DHCP service . 40
B.3 BOOTP protocol . 41
B.4 DHCP protocol . 41
B.4.0 Overview . 41
B.4.1 Address assignment . 42
B.4.2 Message transmission and relay agents . 43
B.4.3 Security and authentication . 43
B.5 DHCP main attributes . 43
B.6 DHCP interception . 44
B.6.1 Introduction . 44
B.6.2 DHCP packets . 44
B.6.3 State machine . 45
B.6.3.0 Overview . 45
B.6.3.1 Mapping DHCP packets to events . 45
B.6.3.2 Timers and administrative events . 46
B.6.3.3 State information . 46
B.6.3.4 State machine diagram . 47
B.6.4 Mapping DHCP on the IRI structure . 47
Annex C (informative): IP IRI interception . 49
ETSI
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5 ETSI TS 102 232-3 V3.11.1 (2023-03)
C.1 Introduction . 49
C.2 Requirements . 49
C.3 Proposed implementation . 49
Annex D (informative): TCP and UDP IRI interception . 50
D.1 Introduction . 50
D.2 Requirements . 50
D.3 HI2 requirements . 50
D.4 HI3 requirements . 51
D.5 General requirements . 51
Annex E (informative): Bibliography . 52
Annex F (informative): Change Request history . 53
History . 56
ETSI
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6 ETSI TS 102 232-3 V3.11.1 (2023-03)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (https://ipr.etsi.org/).
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the
®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [2].
The ASN.1 module is available as an electronic attachment to the present document (see clause 8 for more details).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The intention of the present document has been to follow the advice given at ETSI meetings in all cases.
The present document focuses on intercepting IP data in relation to the use of Internet Access Services (IASs) and is to
be used in conjunction with ETSI TS 102 232-1 [2]. In the latter document the handing over of the intercepted data is
described.
ETSI
---------------------- Page: 6 ----------------------
7 ETSI TS 102 232-3 V3.11.1 (2023-03)
1 Scope
The present document contains a stage 1 description of the interception information in relation to the process of binding
a "target identity" to an IP address when providing Internet access and a stage 2 description of when Intercept Related
Information (IRI) and Content of Communication (CC) need to be sent, and what information it needs to contain.
The present document includes but is not restricted to IRI based on application of Dynamic Host Configuration Protocol
(DHCP) and Remote Authentication Dial-In User Service (RADIUS) technology for binding a "target identity" to an IP
address and CC for the intercepted IP packets.
The definition of the Handover Interface 2 (HI2) and Handover Interface 3 (HI3) is outside the scope of the present
document. For the handover interface is referred to ETSI TS 102 232-1 [2].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 101 671: "Lawful Interception (LI); Handover interface for the lawful interception of
telecommunications traffic".
NOTE: ETSI TS 101 671 is in status "historical" and is not maintained.
[2] ETSI TS 102 232-1: "Lawful Interception (LI); Handover Interface and Service-Specific Details
(SSD) for IP delivery; Part 1: Handover specification for IP delivery".
[3] IETF RFC 1122: "Requirements for Internet Hosts - Communication Layers".
[4] IETF RFC 1570: "PPP LCP Extensions".
[5] IETF RFC 1990: "The PPP Multilink Protocol (MP)".
[6] IETF RFC 2131: "Dynamic Host Configuration Protocol".
[7] IETF RFC 7542: "The Network Access Identifier".
[8] IETF RFC 2865: "Remote Authentication Dial In User Service (RADIUS)".
[9] IETF RFC 2866: "RADIUS Accounting".
[10] IETF RFC 3046: "DHCP Relay Agent Information Option".
[11] IETF RFC 3118: "Authentication for DHCP Messages".
[12] IETF RFC 3396: "Encoding Long Options in the Dynamic Host Configuration Protocol
(DHCPv4)".
[13] IEEE 802.11™a, -b or -g (ISO/IEC 8802-11): "IEEE Standard for Information technology -
Telecommunications and information exchange between systems - Local and metropolitan area
networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications".
ETSI
---------------------- Page: 7 ----------------------
8 ETSI TS 102 232-3 V3.11.1 (2023-03)
[14] Recommendation ITU-T X.680: "Information technology -- Abstract Syntax Notation One
(ASN.1): Specification of basic notation".
[15] IETF RFC 2132: "DHCP Options and BOOTP Vendor Extensions".
[16] ISO 3166-1: "Codes for the representation of names of countries and their subdivisions -- Part 1:
Country code".
[17] IETF RFC 2869: "RADIUS Extensions".
[18] IETF RFC 3162: "RADIUS and IPv6".
[19] IETF RFC 4818: "RADIUS Delegated-IPv6-Prefix Attribute".
[20] IETF RFC 6911: "RADIUS Attributes for IPv6 Access Networks".
[21] IETF RFC 791: "Internet Protocol".
[22] IETF RFC 8200: "Internet Protocol, Version 6 (IPv6) Specification".
[23] IETF RFC 793: "Transmission Control Protocol".
[24] IETF RFC 3168: "The Addition of Explicit Congestion Notification (ECN) to IP".
[25] IETF RFC 3540: "Robust Explicit Congestion Notification (ECN) Signaling with Nonces".
[26] IETF RFC 768: "User Datagram Protocol".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TR 102 205: "Methods for Testing and Specification (MT
...
SLOVENSKI STANDARD
SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
01-julij-2023
Zakonito prestrezanje (LI) - Izročilni vmesnik in storitveno specifične podrobnosti
(SSD) za IP-dostavo vsebin - 3. del: Storitveno specifične podrobnosti za storitve
internetnega dostopa
Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP
delivery - Part 3: Service-specific details for internet access services
Ta slovenski standard je istoveten z: ETSI TS 102 232-3 V3.11.1 (2023-03)
ICS:
35.240.95 Spletne uporabniške rešitve Internet applications
SIST-TS ETSI/TS 102 232-3 V3.11.1:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
---------------------- Page: 2 ----------------------
SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
ETSI TS 102 232-3 V3.11.1 (2023-03)
TECHNICAL SPECIFICATION
Lawful Interception (LI);
Handover Interface and
Service-Specific Details (SSD) for IP delivery;
Part 3: Service-specific details for internet access services
---------------------- Page: 3 ----------------------
SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
2 ETSI TS 102 232-3 V3.11.1 (2023-03)
Reference
RTS/LI-00236-3
Keywords
access, internet, IP, lawful interception, security,
service
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
https://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
n or warranty is made of merchantability or fitness
and/or governmental rule and/or regulation and further, no representatio
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2023.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
3 ETSI TS 102 232-3 V3.11.1 (2023-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 9
3.3 Abbreviations . 9
4 General . 11
4.1 Internet Access Service (IAS) . 11
4.2 Target identity and IP address . 11
4.3 Lawful Interception requirements . 12
4.3.0 Introduction. 12
4.3.1 Target identity . 12
4.3.2 Result of interception . 12
4.3.3 Intercept related information messages. 13
4.3.4 Time constraints . 13
4.3.5 Preventing over and under collection of intercept data . 13
5 System model . 14
5.1 Reference network topologies . 14
5.1.0 Introduction. 14
5.1.1 Dial-up access . 14
5.1.2 xDSL access. 15
5.1.3 Cable modem access . 16
5.1.4 IEEE 802.11 Access (with Wireless LAN profile) . 17
5.2 Reference scenarios . 17
5.2.1 Logon . 17
5.2.2 Multi logon . 17
5.2.3 Multilink logon . 17
5.2.4 IP transport. 18
5.2.5 Logoff . 18
5.2.6 Connection loss . 18
6 Intercept Related Information (IRI) . 18
6.1 IRI events . 18
6.2 HI2 attributes . 20
6.2.0 List of HI2 attributes . 20
6.2.1 Use of targetIPAddress, additionalIPAddress and otherTargetIdentifiers fields . 21
6.2.2 Use of location field . 22
6.2.3 Packet Data Header Reporting (PDHR). 22
6.2.3.1 General . 22
6.2.3.2 IPv4Information . 22
6.2.3.3 IPv6Information . 22
6.2.3.4 TCPInformation . 22
6.2.3.5 UDPInformation . 23
6.2.4 Packet Data Summary Reporting (PDSR) . 23
6.2.4.1 General . 23
6.2.4.2 Packet flow . 23
6.2.4.3 Triggers . 23
ETSI
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SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
4 ETSI TS 102 232-3 V3.11.1 (2023-03)
6.2.4.4 Use of the IPIRIOnly record . 24
7 Content of Communication (CC) . 24
7.1 CC events . 24
7.2 HI3 attributes . 24
8 ASN.1 for IRI and CC . 24
Annex A (informative): Stage 1 - RADIUS characteristics . 25
A.1 Network topology . 25
A.1.0 RADIUS deployment options. 25
A.1.1 RADIUS server . 25
A.1.2 RADIUS proxy . 26
A.2 RADIUS service . 27
A.2.1 Authentication service . 27
A.2.2 Accounting service . 27
A.2.3 IPv6 . 28
A.3 RADIUS protocol . 28
A.3.1 Authentication protocol . 28
A.3.2 Accounting protocol . 29
A.4 RADIUS main attributes . 29
A.5 RADIUS interception . 30
A.5.0 Introduction . 30
A.5.1 Collecting RADIUS packets. 30
A.5.2 Processing RADIUS packets . 30
A.5.2.1 Mapping events to RADIUS packets . 30
A.5.2.2 Functional model . 31
A.5.2.3 RADIUS spoofing . 35
A.5.2.4 Mapping of Acct-Terminate-Cause to endReason . 35
A.5.2.5 Use of Event-Time . 35
A.5.2.6 Use of targetIPAddress, additionalIPAddress and otherTargetIdentifiers fields . 36
A.5.3 Mapping RADIUS on the IRI structure . 36
Annex B (informative): Stage 1 - DHCP characteristics . 40
B.1 Network topology . 40
B.2 DHCP service . 40
B.3 BOOTP protocol . 41
B.4 DHCP protocol . 41
B.4.0 Overview . 41
B.4.1 Address assignment . 42
B.4.2 Message transmission and relay agents . 43
B.4.3 Security and authentication . 43
B.5 DHCP main attributes . 43
B.6 DHCP interception . 44
B.6.1 Introduction . 44
B.6.2 DHCP packets . 44
B.6.3 State machine . 45
B.6.3.0 Overview . 45
B.6.3.1 Mapping DHCP packets to events . 45
B.6.3.2 Timers and administrative events . 46
B.6.3.3 State information . 46
B.6.3.4 State machine diagram . 47
B.6.4 Mapping DHCP on the IRI structure . 47
Annex C (informative): IP IRI interception . 49
ETSI
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SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
5 ETSI TS 102 232-3 V3.11.1 (2023-03)
C.1 Introduction . 49
C.2 Requirements . 49
C.3 Proposed implementation . 49
Annex D (informative): TCP and UDP IRI interception . 50
D.1 Introduction . 50
D.2 Requirements . 50
D.3 HI2 requirements . 50
D.4 HI3 requirements . 51
D.5 General requirements . 51
Annex E (informative): Bibliography . 52
Annex F (informative): Change Request history . 53
History . 56
ETSI
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SIST-TS ETSI/TS 102 232-3 V3.11.1:2023
6 ETSI TS 102 232-3 V3.11.1 (2023-03)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
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Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [2].
The ASN.1 module is available as an electronic attachment to the present document (see clause 8 for more details).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The intention of the present document has been to follow the advice given at ETSI meetings in all cases.
The present document focuses on intercepting IP data in relation to the use of Internet Access Services (IASs) and is to
be used in conjunction with ETSI TS 102 232-1 [2]. In the latter document the handing over of the intercepted data is
described.
ETSI
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7 ETSI TS 102 232-3 V3.11.1 (2023-03)
1 Scope
The present document contains a stage 1 description of the interception information in relation to the process of binding
a "target identity" to an IP address when providing Internet access and a stage 2 description of when Intercept Related
Information (IRI) and Content of Communication (CC) need to be sent, and what information it needs to contain.
The present document includes but is not restricted to IRI based on application of Dynamic Host Configuration Protocol
(DHCP) and Remote Authentication Dial-In User Service (RADIUS) technology for binding a "target identity" to an IP
address and CC for the intercepted IP packets.
The definition of the Handover Interface 2 (HI2) and Handover Interface 3 (HI3) is outside the scope of the present
document. For the handover interface is referred to ETSI TS 102 232-1 [2].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 101 671: "Lawful Interception (LI); Handover interface for the lawful interception of
telecommunications traffic".
NOTE: ETSI TS 101 671 is in status "historical" and is not maintained.
[2] ETSI TS 102 232-1: "Lawful Interception (LI); Handover Interface and Service-Specific Details
(SSD) for IP delivery; Part 1: Handover specification for IP delivery".
[3] IETF RFC 1122: "Requirements for Internet Hosts - Communication Layers".
[4] IETF RFC 1570: "PPP LCP Extensions".
[5] IETF RFC 1990: "The PPP Multilink Protocol (MP)".
[6] IETF RFC 2131: "Dynamic Host Configuration Protocol".
[7] IETF RFC 7542: "The Network Access Identifier".
[8] IETF RFC 2865: "Remote Authentication Dial In User Service (RADIUS)".
[9] IETF RFC 2866: "RADIUS Accounting".
[10] IETF RFC 3046: "DHCP Relay Agent Information Option".
[11] IETF RFC 3118: "Authentication for DHCP Messages".
[12] IETF RFC 3396: "Encoding Long Options in the Dynamic Host Configuration Protocol
(DHCPv4)".
[13] IEEE 802.11™a, -b or -g (ISO/IEC 8802-11): "IEEE Standard for Information technology -
Telecommunications and information exchange between systems - Local and metropolitan area
networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications".
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8 ETSI TS 102 232-3 V3.11.1 (2023-03)
[14] Recommendation ITU-T X.680: "Information technology -- Abstract Syntax Notation One
(ASN.1): Specification of basic notation".
[15] IETF RFC 2132: "DHCP Options and BOOTP Vendor Extensions".
[16] ISO 3166-1: "Codes for the representation of names of countries and their subdivisions -- Part 1:
Country code".
[17] IETF RFC 2869: "RADIUS Extensions".
[18] IETF RFC 3162: "RADIUS and IPv6".
[19] IETF RFC 4818:
...
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