Logs Management

Overview

LTE logging is optimized for mobile network tracking, capturing extensive 3GPP-specific attributes that define the mobile station’s environment, hardware, and location.

Log Types & Locations

1. Detail Logs

Dedicated LTE detail logs for authentication transactions.

  • Path: ${radacctdir}/%{Packet-Src-IP-Address}/lte-auth-reply-%Y%m%d

  • Format: Detail format with 3GPP attribute support.

2. Accounting Line Logs

The most detailed of the line logs, including hardware and network identifiers.

  • Path: ${logdir}/radaccounting/lte-%Y%m%d

3GPP & Mobile Attribute Reference

The lte_accounting line log captures a wide array of mobile network parameters:

Attribute Description

3GPP-IMSI

International Mobile Subscriber Identity.

3GPP-IMEISV

International Mobile Equipment Identity Software Version.

3GPP-RAT-Type

Radio Access Technology (LTE, HSPA, etc.).

3GPP-User-Location-Info

Specific cell-site information (MCC, MNC, LAC, Cell-ID).

3GPP-MS-Time-Zone

Time zone offset of the mobile device.

3GPP-Charging-ID

Unique charging handle for the session.

3GPP-SGSN-Address

IP address of the serving gateway.

3GPP-GGSN-Address

IP address of the gateway support node.

Acct-Input-Octets

Session upload volume.

Acct-Output-Octets

Session download volume.

Syslog Dispatch

LTE traffic can also be dispatched to the lte_syslog instance, which provides a filtered view of mobile authentications specifically for real-time monitoring and alerting systems.

LOG-TYPE: LTE-SYSLOG-ENTRY
    Packet-Type = "Access-Request"
    IMSI = "41311XXXXXXXXXX"
    RAT-Type = "LTE"
    ...