Assignment IX: Network Setup and Routing

Part A : Routing (Static/RIP/OSPF) IPv4 & IPv6

After completing this assignment, you will be able to setup your own network, using the concepts of classfull addressing and classless addressing with help of subnetting of IP address ranges. You would be also understanding the concepts of using static and dynamic routing protocols. For this Assignment, you will be setting up multiple low end machines (RHL09 as routers & WindowsXP) in your laptop using virtualbox. You could also use desktop machines in SSL / NSL Lab, if the configuration of laptop is not enough. In each of these laptop, you should be hosing minimum of six VMs, where three VMs would be having two virtual NIC cards, and both of these would be connected to two seperate virtual switches (Internal Network). Ideally, three VMs has to be Linux PC (Flavour & version depends upon exercise). The other three VMs could be Linux or Windows (depends upon your host configuration).

What you will do Network Diagram is given in Appendix I. There are four different networks in this setup, and each network uses a router to communicate to the other network. You could use the IP range of 172.16.20.64/26 and has to subnet it to four different network having subnet mask of 255.255.255.240.

172.16.20.64/26 → 4 different /28 = 0100/xxxx 0101/xxxx 0110/xxxx 0111/xxxx

172.16.20.01/000000 →

172.16.20.0100/xxxx → 64 → 172.16.20.64/28 → 64(identifier) , 65(gateway), 79(broadcast)
172.16.20.0101/xxxx →80 → 172.16.20.80/28 → 80, 81, 95
172.16.20.0110/xxxx →96→ 172.16.20.96/28 → 96, 97, 111
172.16.20.0111/xxxx → 112→ 172.16.20.112/28 →112, 113, 127

Your aim is to setup and configure the routers, so that all the systems will communicate between each other. HINT: Router have two Legs (NIC Cards), and is used to interconnect machines between different networks.

TASK I

STEPS

Setup the router in all three laptop using using Redhat Linux 9 available from http://archive.download.redhat.com/pub/redhat/linux/9/en/iso/i386/ It is an old version of linux which has 3 CDs for full installation. Please do a full installation of Linux VM using all three CDs. RAM could be allocated to 256 MB. se do a full installation of Linux VM using all three CDs

Configure static routes in all three Linux VMs so that, all the systems communicate between each other. Note down the routing table in each machine. Check whether all systems are able to communicate between each other.