Free routers software for linux

Web Site Robot is an easy to use Web site builder with a blog tool, shopping cart, and online photo album. It is free and does not require additional software, HTML, programming, or a hosting company.
It enables secure online payments with credit cards. There is virtually unlimited storage space for HTML, documents, blogs, photos, music, videos, or any multimedia content.
Enhancements:
- The Robot is now able to discover and inform UPnP routers about its presence and the need to have a NAT port available for its Web server.
- In most SOHO environments with UPnP enabled routers, manual configuration is not needed.
- The operator just installs, registers the Robot and the Web site is online effortlessly.

Diet-Router provides a singe floppy DSL router.
Diet-Router is a Linux router that is small enough to fit on a single floppy disk. It focuses more on security than on functionality.
Diet-Router is a Linux router built with the dietlibc. It is small enough to fit on a single floppy disk. You may think that there are several other Linux routers, which come with more features and you are right. I build this router package more with the view on security than of functionality. So this project differs a lot from most other router or mini-Linux projects.
Main features:
- I use a 2.4.x kernel to have the great features of net-filter.
- I patch some net-filter extensions to have even more filter functions.
- I harden the kernel with the grsecurity kernel patch.
- Kernel modules are disabled.
- By default root login is disabled - even on the console.
How does it work:
First of all, all programs are linked statically. This is the main idea of this system. No libraries are needed. It uses busybox and tinylogin, two typical multi-call-binaries for small systems. The iptables, iptables-restore and iptables-save commands have been made a multi-call binary by me. The pppd and pppoe programs have only been patched to compile with the dietlibc. The minit and od_syslog are really small programs, from people with much more knowledge of programming than me. So, special thanks to Felix von Leitner, Olaf Drefs and all the dietlibc/libowfat programmers.
Enhancements:
- Updated dietlibc, libowfat, dropbear, ppp, kernel and grsecurity to recent
- versions.
- Added new packages dhcp server (udhcpd) and vi (e3).
- The build system has been completely rewritten and documented.
- It supports multiple downloads, a simple interface for package building/setup and target file descriptions including file owner and permissions.
- Some simple checks for build requirements are implementet.
- The setup is now able to configure mutiple network interfaces and also mproxy, udhcpd and dnscache can be configured for eachnetwork interface.
- All packages have at least two internet sources.
- Support for disc based target systems has been added.

Linux LiveCD Router project allows you to share and firewall your broadband connection and use WIFI.
You can use DSL, ADSL, Cable Modem, T1, Fixed IPs, Dial-Up, WIFI, build you own Access Point and more.
Main features:
- Share and Firewall your broadband or dedicated Internet connection
- Includes Firewall Shorewall and Masquerading (NAT)
- Does not require any installation. It is a LiveCD, your computer simply boots straight from the CD. Does not require a hard disk
- Supports DSL, Cablemodem, Fixed IP and Dial-Up
- Traffic Control, QoS
- DHCP Client and Server
- Remote SSH administration
- Includes DNS Cache to accelerate surfing
- Includes SNMP Monitoring, MRTG graphical statistics
- Use standard and low cost computer, networking and wifi hardware (also USB)
- Can use multiple ethernet and wifi 802.11a/b/g cards. Supports PCI, USB and PCMCIA cards (can replace external Access Points!)
- Linux Software compatible with Windows and Mac Networks

Jnettop allows administrators of routers to watch online traffic coming across the network in a fashion similar to the way top displays statistics about processes.
jnettop is useful for quickly evaluating the state of the network.
Enhancements:
- added support for JNET protocol (used by jnettop-gui)
- minor refactorings

Cisco IP Accounting Fetcher is a set of Perl scripts that allows you to fetch IP accounting data from Cisco routers. There is the only one config file - "getdata.conf for configuration.
Main features:
- fetch accounting data from the router
- generate the HTML statistics

Cimon is Perl program wich monitors the load (memory and CPU) on Cisco routers using SNMP, and generates graphics with statistics using rrdtool. Its good for information about your routers health.

It monitors and displays the cpu 5 minutes utilization in percents and free+used Processor memory. The I/O memory(usualy 2 MB) or Fast on high end routers is being monitored too, but there isnt graphic for it. Cimon is good source for information about your routers health. From version 0.2 cimon can do ip accounting using the cisco ip accounting feature.
The logfiles that it generates as the rrd files needed for the graphics are fully compatible with those produced by sasacct (SASs accounting statistics). So you can use its cgi interface also its posibility to generate graphics on demand or on a user defined interval (via crontab and -g option).

OpenWrt is a Linux distribution made for wireless routers. Instead of trying to cram every possible feature into one firmware, OpenWrt provides only a minimal firmware with support for add-on packages.
For users this means the ability to custom tune features, removing unwanted packages to make room for other packages and for developers this means being able to focus on packages without having to test and release an entire firmware.
Enhancements:
- Countless bugfixes, various security patches, improved Failsafe, faster installation (new firstboot script), a multilingual Web interface (Cesky, Deutsch, Dansk, Eesti, Espanol, Francais, Italiano, Norsk, and Polski), and ethernet switch configuration (/proc/switch).

Tomato Firmware is a small, lean, simple replacement firmware for Linksys WRT54G/GL/GS and Buffalo WHR-G54S/WHR-HP-G54 routers.

It features a new easy to use GUI, a new bandwidth usage monitor, more advanced QOS and access restrictions, enables new wireless features such as WDS and wireless client modes.

It raises the limits on maximum connections for P2P, allows you to run your custom scripts or telnet/ssh in and do all sorts of things like re-program the SES/AOSS button, adds wireless site survey to see your wifi neighbors, and more.