The second idea -- Linux Router --

What have you need ?

• What Computer models ?
• Intel 486 family SX, DX, DX2 .....
• Intel Pentium family , MMX, II, III ....
  
• Intel Celeron family
  
• Hardware components:
• Base : Hard Disk Drive, CPU, RAM, Video Card, Floppy Disk & CDRom
• Two RJ45 Network Cards , or more
  
• Operating System:
• Linux !!!!!!!!!!!

Example --->

We have a PC like this one :
Pentium MMX 133Mhz, 64 Mb Ram, HD 512Mb, Two Network Cards 10 Mbps, CDRom 12x, SVGA max 800x600, floppy disk, Monitor 14'', Keyboard and mouse.

• Installation Slackware Operating System Following the post link

Attetion !! in section "Select Packages to install" you well have to choose A,D,L & N
Attetion !! during setup installation, for "Packages Seriers L (Libraries)", check only glib, glib2, glibc

• Router Configuration

There is a routing software suite that providing implementations of OSPFv2, OSPFv3, RIP v1 and v2, RIPng and BGP-4 for Unix platforms, particularly FreeBSD, Linux, Solaris and NetBSD.
"Quagga" http://www.quagga.net/ is a fork of GNU Zebra acts as an abstraction layer to the underlying Unix kernel.

• Installation Quagga ver. 0.98.6 on Slackware 10.0

Download the software from http://www.quagga.net/download/quagga-0.98.6.tar.gz and follows these steps to install :

1. untar the package "routerlx# tar xvfz quagga-0.98.6.tar.gz "
2. build the software
1. routerlx:# cd quagga-0.98.6
2. routerlx:# ./confiugre
3. routerlx:# ./make
4. routerlx:# ./make install
3. Attention, after the build the space left on disk, delete the quagga-0.98.6.tar.gz and the quagga-0.98.6 folder.
4. Edit the file "/etc/profile" and insert the variable "export LD_LIBRARY_PATH=/usr/local/lib"
5. Reload the profile : "routerlx:#. /etc/profile"
6. Copy the file "/usr/local/etc/zebra.conf.sample" in "/usr/local/etc/zebra.conf"
7. Edit the file "/usr/local/etc/zebra.conf" and set these parameters :
1. !
   ! Zebra configuration saved from vty
   ! 2007/03/14 08:18:03
   !
   hostname Routerlx
   password zebra
   enable password zebra
   !
8. Start the zebra services "routerlx:#/usr/local/sbin/zebra -d -u root -g root"
9. Edit the file "/etc/rc.d/rc.local" and add the command "/usr/local/sbin/zebra -d -u root -g root"
10. Connect to routerlx with "telnet [ip address] 2601" example : telnet 192.168.66.99 2601
    
1. 
   Trying 192.168.66.99...
   Connected to 192.168.66.99.
   Escape character is '^]'.
   
   Hello, this is Quagga (version 0.98.6).
   Copyright 1996-2005 Kunihiro Ishiguro, et al.
   
   
   User Access Verification
   
   Password:
   Routerlx> enable
   Password:
   Routerlx#
   configure Configuration from vty interface
   copy Copy configuration
   debug Debugging functions (see also 'undebug')
   disable Turn off privileged mode command
   echo Echo a message back to the vty
   end End current mode and change to enable mode.
   exit Exit current mode and down to previous mode
   help Description of the interactive help system
   list Print command list
   logmsg Send a message to enabled logging destinations
   no Negate a command or set its defaults
   quit Exit current mode and down to previous mode
   show Show running system information
   terminal Set terminal line parameters
   who Display who is on vty
   write Write running configuration to memory, network, or terminal
   Routerlx#
11. Your Router Now is Ready !!!!!!!!!!!!!!!!!!