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QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
Utilities & Libraries
Utilities Reference
P
ppp
Point-to-Point protocol

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
- Quickstart Guide
- System Architecture
  The System Architecture guide accompanies the QNX OS and is intended for both application developers and end-users.
- OS Components & Operations
- Graphics
- Programming
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX OS system and developers who want to create a QNX OS resource manager free from vulnerabilities.
- Utilities & Libraries
  - C Library Reference
  - Devctl and Ioctl Commands
  - JSON Library Reference
  - PAM Reference
  - QNX Helpers Developer's Guide
    These libraries provide QNX helpers, including helpers that assist with logging, string conversion, and number and type sizes.
  - SPI Framework Technote
  - QNX Cryptography Library
    The QNX Cryptography Library (qcrypto) is a flexible cryptography framework that allows you to choose which cryptography provider responds to requests on a per-process basis.
  - QNX devcrypto Service
  - Utilities Reference
    - Utility Conventions
    - A
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      - passwd
        Change the login password or create new user names (UNIX)
      - paste
        Merge corresponding lines from each input file (POSIX, toybox)
      - patch
        Apply a unified diff to one or more files (POSIX, toybox)
      - pci-server
        Resource manager process that manages the PCI hierarchy
      - pci-tool
        Display PCI information
      - pdebug
        Process-level debugger
      - pf
        Packet Filter pseudo-device
      - /etc/pf.conf
        Packet filter configuration file
      - pfctl
        Control the packet filter (PF) and network address translation (NAT) device
      - pflog
        Packet filter logging interface
      - pidin
        Display information about the processes in the system (QNX OS)
      - ping
        Send ICMP ECHO_REQUEST packets to network hosts
      - pipe
        Pipe manager (QNX OS)
      - plainrsa-gen
        Generator for Plain RSA keys
      - ppp
        Point-to-Point protocol
      - printenv
        Print environment variables (POSIX, toybox)
      - printf
        Write formatted output (POSIX, toybox)
      - procnto*
        Microkernel and process manager (QNX OS)
      - /etc/protocols
        Protocol name database (UNIX)
      - ps
        Report process status (POSIX)
      - pted
        Partition table editor
      - ptpd2
        Precision Time Protocol (PTP) daemon
      - pwd (host)
        Print working directory name (POSIX)
      - pwd (target)
        Print working (current) directory (POSIX, toybox)
      - python
        Object-oriented programming and scripting language.
    - Q
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    - U
    - V
    - W
    - X
    - Y
    - Z
    - Commonly Used Environment Variables
    - Selecting the Target System
    - Glossary
  - WPA Control Interface Reference
    This document provides a reference for the Wi-Fi Protected Access (WPA) control interface, which provides a C API for the WPA/IEEE 802.11i protocols in Wi-Fi client stations. Application developers who want to control WPA operations and get associated status and event data should read this reference.
- Migrating to QNX OS 8.0
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX OS in the Amazon cloud environment.
QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
QNX Hypervisor User's Guide
This User's Guide explains the QNX hypervisor architecture and provides instructions for installing and running a QNX Hypervisor system, changing system components and configuration, and using hypervisor features such as virtual devices (vdevs).
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

ppp

QNX SDP8.0Utilities ReferenceUtilities

Point-to-Point protocol

Syntax:

ppp [-mode] [-quiet] [-unitN] [system ...]

Runs on:

QNX OS

Options:

The ppp utility that QNX OS provides is adapted from FreeBSD and supports the standard commands and options. Exceptions include:

The -unit option behaves differently—it tells ppp to only attempt to open /dev/tunN, and if no -unit flag is provided, ppp opens /dev/tun and the network stack creates a new tun interface for ppp.
The -nat option and any other options or settings related to network address translation (NAT) are not supported.
Options and settings related to RADIUS authentication are not supported.

QNX OS provides the following additional command-line option:

set baudrate_check [on | off]: Set to off to allow non-standard baud rate configuration via ppp's set speed command. Default is on.

For descriptions of standard options, go to the FreeBSD documentation (https://www.freebsd.org/cgi/man.cgi?query=ppp&sektion=8&manpath=FreeBSD+13.5-RELEASE+and+Ports).

Description:

This is a user process PPP software package. In this implementation, PPP is done as a user process with the help of the tunnel device driver (tun).

For more information, go to the FreeBSD documentation (https://www.freebsd.org/cgi/man.cgi?query=ppp&sektion=8&manpath=FreeBSD+13.5-RELEASE+and+Ports).

Page updated: August 11, 2025