UERANSIM

Mobile (5G / NR)Ready to RunLocation: /opt/telcosec/ueransim/

Command Line Execution

Run this command in the TelcoChisel terminal to launch or execute the tool:

UERANSIM Command
nr-gnb -c /etc/telcosec/ueransim/gnb.yaml

Detailed Technical Overview

UERANSIM is the leading open-source 5G Standalone (SA) user equipment (UE) and radio access network (gNodeB) simulator. It implements the N1, N2, and N3 interfaces, allowing complete software-defined testing of 5G SA cores.

Configuration & Usage Guide

To initialize and configure UERANSIM for telecom security audits, follow these steps:

  1. 1Configure your AMF binding IP in /etc/telcosec/ueransim/gnb.yaml.
  2. 2Start the simulated gNodeB: nr-gnb -c /etc/telcosec/ueransim/gnb.yaml
  3. 3Launch a simulated UE to attach to the network: nr-ue -c /etc/telcosec/ueransim/ue.yaml

Troubleshooting & Security Audits

UERANSIM Audit Warning
Ensure the gtp5g kernel module is loaded on the host, otherwise UERANSIM cannot forward user-plane data via the N3 interface.
5G SA CORE SANDBOX

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Frequently Asked Questions

Does UERANSIM require an SDR transceiver?

No, UERANSIM is a pure software simulation of the 5G radio layer, sending packets over IP tunnels.

Can UERANSIM execute network traffic?

Yes, it creates a virtual tun interface (e.g. uesimtun0) on the host to route standard IP packets through the simulated gNodeB and Open5GS Core.

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