CIPE - An ongoing project to build encrypting IP routers. Software is already available for Linux and released under GPL. GNU Zebra - Manages TCP/IP based routing protocols. It supports BGP4 (RFC1771), RIPv1, RIPv2 and OSPFv2. Zebra makes use of OS threads where available. Virtual Router - Open-source WiFi hotspot software. Enables standard WiFi devices to use a laptop's Internet access. Supports WPA2. [Windows] MyPublicWiFi - Develops commercial software for creating Internet cafes, wireless hotspots, and paid guest ticketing. Supports POS hardware integration. [Windows] DD-WRT - Third-party firmware replacement for consumer routers based on Atheros or Broadcom chipsets. Provides security and connectivity features absent in many stock routers. IP Infusion - Platform development and related services provider for routing control planes. Offers hardware integration and IPv6 transition software for hardware vendors, telecom, and big data. FirstDigest - Blog providing guidelines and tips for users and learners of Cisco and Juniper technologies, including integration with Linux systems. JOIKU - WiFi tethering software for mobile phones and iPads. Vyatta - Integrated network operating system. Can act as a router, firewall, and or VPN gateway. AWS machine image available. XORP - Open-source inter-network routing platform supporting various protocols under IPv4 and IPv6. Includes direct support for multicast. [Linux/BSD/Windows] Babel - Provides authoritative information and downloads pertaining to the Babel routing protocol.