Section 2: IP Interface & Route Configuration

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Now you should be familiar enough with assigning IP addresses and subnets to interfaces and adding routes that you can configure the rest of the network. Remember to closely follow the guidelines of the diagram (below) when deciding on the prefixes to use for each subnet (hint, you have enough IP space, but not much extra). You probably want to plan the network out on paper first to divide up your /24 and compute what the different subnet masks will look like in the 255.255.255.XXX notation.

If you didn't carefully read the helpful tips on the main page about configuring and debugging Clack networks, do so now. It can save you a lot of time by speeding configuration and helping you to quickly diagnose any mistakes you make.

A few notes: When correctly configured, all interfaces on all hosts should be reachable from every host on the network. Using ping will be the easiest way to test this. When you encounter problems, use ethereal, the routing-table network view, and component property views to find out what is wrong. Even though there is only one host in each of the large subnets, these networks must be configured so that when later hosts are added, the current hosts/routers will continue to function correctly without reconfiguration. Additionally, packets to addresses outside your company's prefix should be forwarded to the 'isprouter', which in the real world would forward them to the Internet (in our virtual network, it just drops the packets).

Remember that you can save partially configured topologies, as described on the main page.

For reference, here is the previously shown diagram describing the desired network set-up:

Upload your completed topology file here (be sure you do File -> Save All before uploading):

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