Open Source Router Firmware

The fwiptables is a one-file WIZARD, for IPTABLES with COMMAND-LINE, with CLI-MENU, with GUI-MENU, with GUI-ROLL, with GUI-SHELL. Since 2025, code more mature, and more stable, more clean, and with better code design, and with purpose educational.

Ready to use OpenWRT NAT router appliance for ©VMWare ©ESXi. You only have to uncompress and register it to your ©ESXi server to be able to use it as a fencing device between your LAN network and some NATed network inside your ©ESXi host. It can also be easily configured to serve as a firewall in a dedicated ©ESXi host. You can follow the setup guide at https://33hops.com/vmware-esxi-nat-with-custom-firewall.html The appliance comes in a very small package (less than 5 MB), still it's fully functional, make not mistake. It is configured with 256 MB of RAM in a 50 MB .vmdk disk, which should be more than enough for any small lab, corporate department or (c)VMWare (c)ESXi dedicated server. Just uncompress and register, enjoy.

A simple NAT(network address translator) for IPv6 (Linux only). Make sure if you really need it before using it. Functions: 1. IPv6 auto configuration; 2. TCP, UDP and ICMP-Echo port forwarding; 3. static port mapping for TCP and UDP.

Milkshake is a Slackware-based Linux distribution that boots from a USB stick and turns an unused PC into a home firewall/router. This project is currently in prealpha and is not intended for use yet. Please do not rate it up or down yet.

Ferramenta web para administração de regras de firewall para pequenas redes que inclui scripts de inicialização de redes, configurações de integração com Squid e um Balanceador de Cargas Simples. Baseado no projeto squidadmin.

Easily turn a Ubuntu-based computer into a full linux router, complete with dhcpd, named/bind, iptables firewall, and packet inspection of the network traffic being routed. Deep packet inspection for layer 2 (mac), layer 3 (ipv4, ipv6), layer 4 (icmp, tcp, udp), and layer 7 (application-specific). Summary of network flows and all layers of inspected traffic is stored in a database at 1-second intervals. This database is then mined to drive the Apache/PHP web interface.

A Java implementation of a NAT-PMP client. At the project's inception, there was not a well-known NAT-PMP client library for Java. This project intends to fill the gap.