Joachim Wiberg
9b057ad547
The BCM2837 core is used not just in the RPi 3B but also in the Zero 2W, both device trees have been added to the board config. The BCM2711 support has been extended to include RPi 400 and CM4 I/O. To support the BCM2837 family more firmware options habe been enabled, since the RPi3 does not have bootcode.bin flashed in the SoC. The SD card image now uses a hybrid GPT/MBR format so the RPi3 bootcode.bin can read all files from the first VFAT partition. The default device tree for Linux is now chosen by the U-Boot probe and the only exception is the "laundry room" detector that looks for a RPi4 with a 7" touch screen, which then selects the DSI enabled RPi4 variant. This is enough to properly load an RPi 3B and a CM4 based router board. The BCM2837 does not have PCI/PCIe or a built-in MAC so it relies on the USB to Ethernet LAN78xx which does not support disabling pause frames. I have opted for checking for EOPNOTSUPP instead of adding yet another quirk, because it is likely to be a common limitation of more drivers and chipsets, and this code is best-effort anyway. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Turn any ARM or x86 device into a powerful, manageable network appliance in minutes. From $35 Raspberry Pi boards to enterprise switches — deploy routers, IoT gateways, edge devices, or custom network solutions that just work.
Our Values
🔒 Immutable
Your system never breaks. Read-only filesystem with atomic upgrades
means no configuration drift, no corrupted updates, and instant rollback
if something goes wrong. Deploy once, trust forever.
🤝 Friendly
Actually easy to use. Auto-generated CLI from standard YANG models comes
with built-in help for every command — just hit ? or TAB for
context-aware assistance. Familiar NETCONF/RESTCONF APIs and
comprehensive documentation mean you're never stuck. Whether
you're learning networking or managing enterprise infrastructure.
🛡️ Secure
Built with security as a foundation, not an afterthought. Minimal
attack surface, separation between system and data, and container
isolation. Sleep better knowing your infrastructure is protected.
Why Choose Infix
Hardware Flexibility: Start with a $35 Raspberry Pi, scale to enterprise switching hardware. Same OS, same tools, same reliability.
Standards-Based: Built around YANG models and IETF standards. Learn once, use everywhere - no vendor lock-in.
Container Ready: Run your applications alongside networking functions. GPIO access, dedicated Ethernet ports, custom protocols — your device, your rules.
Use Cases
- Home Labs & Hobbyists:
Transform a Raspberry Pi into a full-featured router with WiFi - IoT & Edge Computing:
Bridge devices to the cloud with reliable, updatable gateways - Small Business Networks:
Enterprise-grade features without the complexity or cost - Developers & Makers:
Test networking concepts, prototype IoT solutions, or build custom appliances - Network Professionals:
Consistent tooling from development to production deployment.
How about a digital twin using raw Qemu or GNS3!
See It In Action
Configure an interface in seconds - the CLI guides you with built-in help:
Click Here for an example CLI Session
admin@infix-12-34-56:/> configure
admin@infix-12-34-56:/config/> edit interface eth0
admin@infix-12-34-56:/config/interface/eth0/> set ipv4 <TAB>
address autoconf bind-ni-name enabled
forwarding mtu neighbor
admin@infix-12-34-56:/config/interface/eth0/> set ipv4 address 192.168.2.200 prefix-length 24
admin@infix-12-34-56:/config/interface/eth0/> show
type ethernet;
ipv4 {
address 192.168.2.200 {
prefix-length 24;
}
}
admin@infix-12-34-56:/config/interface/eth0/> diff
interfaces {
interface eth0 {
+ ipv4 {
+ address 192.168.2.200 {
+ prefix-length 24;
+ }
+ }
}
}
admin@infix-12-34-56:/config/interface/eth0/> leave
admin@infix-12-34-56:/> show interfaces
INTERFACE PROTOCOL STATE DATA
eth0 ethernet UP 52:54:00:12:34:56
ipv4 192.168.2.200/24 (static)
ipv6 fe80::5054:ff:fe12:3456/64 (link-layer)
lo ethernet UP 00:00:00:00:00:00
ipv4 127.0.0.1/8 (static)
ipv6 ::1/128 (static)
admin@infix-12-34-56:/> copy running-config startup-config
Notice how TAB completion shows available options, show displays
current config, and diff shows exactly what changed before you
commit your changes with the leave command.
Get Started
Get pre-built images for your hardware. Use the CLI, web
interface, or standard NETCONF/RESTCONF tools, e.g., curl. Add
containers for any custom functionality you need.
Supported Platforms
- Raspberry Pi 4B - Perfect for home labs, learning, and prototyping
- Banana Pi-R3 - Your next home router and gateway
- NanoPi R2S - Compact dual-port router in a tiny package
- x86_64 - Run in VMs or on mini PCs for development and testing
- Marvell CN9130 CRB, EspressoBIN - High-performance ARM64 platforms
- Microchip SparX-5i - Enterprise switching capabilities
- NXP i.MX8MP EVK - Highly capable ARM64 SoC
- StarFive VisionFive2 - RISC-V architecture support
Why start with Raspberry Pi? It's affordable, widely available, has built-in WiFi + Ethernet, and runs the exact same Infix OS you'd deploy in production. Perfect for learning, prototyping, or even small-scale deployments.
Technical Details
Built on proven open-source foundations: Linux, Buildroot, and sysrepo — for reliability you can trust:
- Immutable OS: Read-only filesystem, atomic updates, instant rollback
- YANG Configuration: Industry-standard models with auto-generated tooling
- Hardware Acceleration: Linux switchdev support for wire-speed packet processing
- Container Integration: Docker support with flexible network and hardware access
- Memory Efficient: Runs comfortably on devices with as little as 256 MB RAM
- Code Signing: Releases are cryptographically signed for integrity verification
Perfect for everything from resource-constrained edge devices to high-throughput network appliances.
With the entire system modeled in YANG, scalability is no longer an issue, be it in development, testing, or end users deploying and monitoring their devices. All knobs and dials are accessible from the CLI (console/SSH), or remotely using the native NETCONF or RESTCONF APIs.
Check the Latest Build for bleeding-edge features.
