MOBILE CORE GENERATOR ·

Build the mobile-core traffic your lab needs.

Generate realistic 4G/5G control and user-plane traffic without a live network, SIM cards, or radio hardware — then track sessions, replay captures to a lab interface, and let your own AI assistant explore the results.

Windows · Linux build available upon request · Community free for non-commercial use · Full Edition $89 one time

GTPv2-CPFCPGTP-URADIUS

01 / COMPLETE SCENARIOS

Control plane and user plane, built together.

Create attach, modify, handover, and release procedures. Generated GTP-U traffic remains correlated with the control plane through TEID and QFI, so the capture behaves like one coherent subscriber scenario rather than unrelated packets.

MOBILITY

Move subscribers, not just packets.

Model reselection, intra- and inter-TA handovers, and inter-MME mobility. Build thousands of subscribers per run in the Full Edition, or use the Community Edition for compact laboratory and learning scenarios.

  • Subscriber and session lifecycles
  • Correlated control and user planes
  • Positive, malformed, and negative cases
  • GUI exploration and CLI automation
  • Send PCAP to network: loopback by default, real interfaces only when explicitly allowed

EXPLAIN PACKETS

Understand every generated message.

Open a generated capture and see each message decoded in context, with the relevant 3GPP references beside it. The packet becomes both test evidence and readable protocol documentation.

TEACHING LABS

Turn protocol traces into guided exercises.

Use built-in questions and answers to study procedures, information elements, failure handling, and mobility. Suitable for self-study, classroom demonstrations, and hands-on telecom labs.

GTP SESSIONS & AI

Find the broken session in any capture.

GTP Sessions groups GTPv2-C dialogs, GTPv1-C PDP contexts, and PFCP sessions by TEID, F-TEID, SEID, and IMSI, links GTP-C to PFCP, and reports state-machine violations, retransmissions, unmatched responses, TEID collisions, hanging sessions, and per-procedure latency as text, JSON, or CSV. An optional MCP server lets Claude Desktop, Cursor, and other assistants query the same results locally.

SESSIONSViolations, retransmits, TEID reuse, Recovery restarts, Cause / success %
SEND TO NETWORKReplay with target IP/MAC rewrite and live TX counters
PROBE & SUITEFull: response matching, loss and latency, conformance test cases with HTML/JSON reports
AI-READYMCP over stdio or local HTTP with token and Origin checks; optional

COMMUNITY VS FULL

Choose the capacity your lab needs.

One download for everyone: without a license the program runs as the Community Edition; a valid license file turns the same installation into the Full Edition. The Full Edition is a one-time purchase with no subscription.

LimitationCommunity EditionFull Edition
Subscribers / sessionsUp to 100Unlimited
GTP session trackingFirst 100 sessions in detailUnlimited
Send PCAP to networkCapped at 1000 packets/sFull speed
Receive & match responses (probe)—Included
Conformance suite—Included
AI assistant (MCP)Read-only toolsAlso session export and PCAP generation with confirmation
Explain Packets, Teaching Labs, CLIIncludedIncluded

Community Edition

Free for non-commercial evaluation, learning, and compact laboratory scenarios.

DOWNLOAD OPTIONS →

Full Edition · $89

Remove the 100-subscriber/session limit and unlock probe, conformance suite, and full-speed sending with a one-time license.

BUY / CONTACT SALES →

DOWNLOAD DETAILS

System requirements and file integrity.

The current release is available for Windows 10/11 64-bit; a Linux build is available upon request. The same package runs as Community or Full depending on the license file.

Requirements

Windows
Windows 10/11 64-bit; unzip and run; no separate Python install
Linux
Linux build available upon request — undefinable@yandex.com
Memory
512 MB or more recommended
Display
1280×720 or larger recommended
Optional
tshark / Wireshark for richer capture validation; Npcap for Send to network

Packages and SHA-256

PackageApprox. sizeSHA-256
Windows zip (LOOSHA_MOBILE_CORE_1.19.1_WINDOWS.zip)—5b1fffe6f68e446c393198a5f91971f530b1793120c7638c0f41634f700f9b20
Linux build—Available upon request

Related article: How to generate GTPv2-C and PFCP traffic without a real 4G/5G core →

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