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L2AccessPDU
{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2)
li-ps(5) l2Access(4) version7(7)}
DEFINITIONS IMPLICIT TAGS ::=
BEGIN
-- ============================
-- Object Identifier Definition
-- ============================
l2IRIObjId RELATIVE-OID ::= {li-ps(5) l2Access(4) version7(7) iRI(1)}
l2CCObjId RELATIVE-OID ::= {li-ps(5) l2Access(4) version7(7) cC(2)}
l2IRIOnlyObjId RELATIVE-OID ::= {li-ps(5) l2Access(4) version7(7) iRIOnly(3)}
-- all three definitions relative to {itu-t(0) identified-organization(4)
-- etsi(0) securityDomain(2) lawfulintercept(2)}
-- ==========================
-- L2 Communications Contents
-- ==========================
L2CC ::= SEQUENCE
{
l2CCObjId [0] RELATIVE-OID,
l2CCContents [1] CHOICE
{
l2TP [1] OCTET STRING,
-- The L2TP protocol is used
l2F [2] OCTET STRING,
-- The L2F protocol is used
pPTP [3] OCTET STRING,
-- The PPTP protocol is used
pPP [4] OCTET STRING,
-- The PPP protocol is used
ethernet [5] OCTET STRING,
-- The ethernet protocol is used
...,
l2ATM2684 [6] OCTET STRING,
-- The protocol RFC 2684, method "LLC Encapsulation for Bridged Protocols` [16] is used
l2FR2427 [7] OCTET STRING
-- The protocol RFC 2427 “Multiprotocol Interconnect over Frame Relay” [18] is used
}
}
-- ===================================================
-- Intercept-related information for general L2-Access
-- ===================================================
L2IRI ::= SEQUENCE
{
l2IRIObjId [0] RELATIVE-OID,
l2IRIContents [1] L2IRIContents,
...
}
L2IRIContents ::= SEQUENCE
{
accessEventType [0] AccessEventType,
internetAccessType [2] InternetAccessType OPTIONAL,
targetNetworkID [5] UTF8String (SIZE (1..128)) OPTIONAL,
-- Target network ID (e.g. MAC address, PSTN number, additional information from
-- network elements)
targetCPEID [6] UTF8String (SIZE (1..128)) OPTIONAL,
-- CPEID (e.g. Relay Agent info, computer name)
targetLocation [7] UTF8String (SIZE (1..64))OPTIONAL,
-- <for further study>
nASPortNumber [8] INTEGER (0..4294967295) OPTIONAL,
-- The NAS port number used by the target
callBackNumber [9] UTF8String (SIZE (1..20)) OPTIONAL,
-- The number used to call-back the target
startTime [10] GeneralizedTime OPTIONAL,
-- The start date-time of the session or lease
endTime [11] GeneralizedTime OPTIONAL,
-- The end date-time of the session or lease
endReason [12] EndReason OPTIONAL,
-- The reason for the session to end
octetsReceived [13] INTEGER (0..18446744073709551615) OPTIONAL,
-- The number of octets the target received
octetsTransmitted [14] INTEGER (0..18446744073709551615) OPTIONAL,
-- The number of octets the target transmitted
rawAAAData [15] OCTET STRING OPTIONAL,
-- Content of the raw AAA record
...,
authenticationType [16] AuthenticationType OPTIONAL
-- Field used to identify the authentication type to assist with LEMF data validation
}
AccessEventType ::= ENUMERATED
{
accessAttempt(0),
-- A target requests access to the IAS
accessAccept(1),
-- IAS access is granted to the target, the session begins
accessReject(2),
-- IAS access is refused to the target
accessFailed(3),
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canterburym
committed
-- The accessAttempt timed-out or failed otherwise
sessionStart(4),
-- A target starts using the IAS; not in use anymore from version 4(4).
sessionEnd(5),
-- A target stops using the IAS; not in use anymore from version 4(4).
interimUpdate(6),
-- Intermediate status report on service status or usage
unknown(7),
...,
startOfInterceptionWithSessionActive(8),
-- LI is started on a target who already has an active session
accessEnd(9),
-- A target stops using the IAS, the session ends.
endOfInterceptionWithSessionActive(10)
-- LI is ended on a target who still has an active session
}
InternetAccessType ::= ENUMERATED
{
undefined(0),
dialUp(1),
-- IAS via DialUp access
xDSL(2),
-- IAS via DSL access
cableModem(3),
-- IAS via Cable access
lAN(4),
-- IAS via LAN access
...,
wirelessLAN(5),
-- IAS via Wireless LAN access
fTTx(6),
-- IAS via Fiber access
wIMAX-HIPERMAN(7),
-- IAS via WIMAX/HIPERMAN (fixed access)
satellite(8)
-- IAS via Satellite access
-- (when it is not covered by any 3GPP or ETSI mobile Lawful Interception specifications)
}
EndReason ::= ENUMERATED
{
undefined(0),
regularLogoff(1),
-- The target logged off
connectionLoss(2),
-- The connection was lost
connectionTimeout(3),
-- The connection timed-out
leaseExpired(4),
-- The DHCP lease expired
...
}
AuthenticationType ::= ENUMERATED
{
unknown(0),
-- AAA function for the target service is unknown
static(1),
-- The target service is assigned a static IP address & no AAA expected
radiusAAA(2),
-- AAA function for the target service is provided by RADIUS
dhcpAAA(3),
-- AAA function for the target service is provided by DHCP
diameterAAA(4),
-- AAA function for the target service is provided by DIAMETER
...
}
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-- =====================================================
-- Intercept-related information for IRI-Only intercepts
-- =====================================================
L2IRIOnly ::= SEQUENCE
{
l2IRIOnlyObjId [0] RELATIVE-OID,
l2protocolInformation [2] L2ProtocolInformation,
l2AggregatedNbrOfPackets [3] INTEGER OPTIONAL,
l2AggregatedNbrOfBytes [4] INTEGER OPTIONAL,
...
}
L2ProtocolInformation ::= ENUMERATED
{
l2ProtocolL2tp(1),
-- The L2TP protocol is used
l2ProtocolL2f(2),
-- The L2F protocol is used
l2ProtocolPptp(3),
-- The PPTP protocol is used
l2ProtocolPpp(4),
-- The PPP protocol is used
ethernetProtocol(5),
-- The ethernet protocol is used
undefined(6),
...,
l2ProtocolATM2684(7),
-- The protocol RFC 2684, method "LLC Encapsulation for Bridged Protocols" [16] is used
l2ProtocolFR2427(8)
-- The protocol RFC2427 “Multiprotocol Interconnect over Frame Relay” [18] is used
}
END -- end of L2AccessPDU