Linux Router Features
Multi Interface Ethernet, WAN (DS1+), Wireless, ISDN, Serial, Parallel
Multi Protocol RIP in base, BGP IP-IP OSPF and others via packages
IP Control Policy firewall, IP Masquerade (NAT), port redirection, port translation, port load balancing, transparent proxy, numberless interface spanning, interface load balancing, interface aliasing
Advanced Routing IPX, Token Ring, Tunneling, Crypto VPN, traffic limiting and shaping, policy based
Traffic Monitoring SNMP monitoring of all interfaces, TCPDump
Compatibility Guaranteed IPv6 upgrade path. Follows non-proprietary open standards. Continually updated. You will never out grow it
Open Hardware Use standard modular PC components. Easy redundancy. Uses 1.44 Floppy, ZIP, LS-120, Flash RAM, Hard Drive or anything linux can boot and mount. Can also do remote bootstrap using BOOTPC
Modular Design Packaging system allows easy addition and removal of features
Solid State Default configuration runs solid state out of ram. No FS to corrupt. Changes are backed up to the boot medium. Large volumes can be opened remotely with SMB or NFS.
POSIX feel Nothing new to learn. Works like a full unix system. Takes the Best of BSD and SysV. Full sh and sed scripting.
Secure Small and light. Less to worry about, less to break. Easy to administer. Secure Shell (ssh) and Secure Copy support.
Support Vast resources, and HOW-TO's. Active mailing list. Commercial software support and hardware solutions available.
Flexible Run any combination of: Router, Firewall, Switch, RADIUS terminal server, web server, and more. LRP is also usable for non-router applications: VNC Terminal, X Terminal, Rescue System, or ANYTHING else you can fit on your boot disk. LRP is REAL LINUX!
FREE & OPEN 100% Source available of base. Source available for most packages. You are able to do ANYTHING you are willing to put the time in to do.

How does it work?

The boot medium contains a linux kernel, generic root archive, and package archives of addtional features to be merged with the rest of the root at boot time. (such as PPP, snmp, RADIUS support, etc) When the disk is booted these archives are uncompressed and extracted into a ramdrive (/dev/ram0) then the ramdrive is mounted as root. The entire system runs solid state from ram. Any changes made to the root must be backed up to the boot medium, or they will be lost after a reboot. The procedure to back up is menu based, and if need be, can be automated to take place at regular intervals.

Uses (router/dns/microserver)