How to fill in a routing table ?

Hello,

To fill out the routing tables for the network shown in Figure 7-17 using the RIP routing protocol, we need to follow the steps below:

Identify the network addresses for each of the routers in the network. In this case, we have four routers: RouterA, RouterB, RouterC, and RouterD. The network addresses for each of these routers are as follows:

RouterA: 192.168.10.0
RouterB: 192.168.20.0
RouterC: 192.168.30.0
RouterD: 192.168.40.0

For each router, fill in the routing table with the directly connected network addresses. These are the networks that are directly connected to each router. For example, for RouterA, the directly connected network is 192.168.10.0. The table for RouterA has already been started in the document you provided, but to complete it, we would add the following entries:

Network 192.168.10.0/24, Next hop 0.0.0.0, Metric 1

Now, we need to fill in the routing tables with information about the networks that are not directly connected to each router. To do this, we use the RIP routing protocol, which exchanges routing information between routers. We assume that all networks are Class C networks, so we can use a metric of 1 for each hop.

For each router, we need to configure it to advertise its directly connected networks using the RIP protocol. In this case, we assume that all routers are already configured to advertise their networks.

Next, we need to wait for the RIP protocol to converge. This means that all routers have exchanged their routing information and have updated their routing tables.

Once the RIP protocol has converged, we can fill in the routing tables with information about the networks that are not directly connected to each router. To do this, we look at the routing updates received from other routers and update our own routing tables accordingly.

For example, to fill in the routing table for RouterA for the network 192.168.20.0, we would look at the routing updates received from RouterB. Assuming RouterB has a directly connected network with this address, it will advertise it to RouterA. RouterA would then add the following entry to its routing table:

Network 192.168.20.0/24, Next hop RouterB, Metric 2

We repeat this process for each network that is not directly connected to each router, using the information received from other routers to fill in the routing tables.

I hope this explanation helps you fill in the routing table for the network shown in Figure 7-17 using the RIP routing protocol.

Best Regards,

Alessandro

Wali Mohd Dar

1. Determine the IP address of the router.

2. Identify the subnets that the router is connected to.

3. For each subnet, determine the IP address of the interface that is connected to that subnet.

4. For each subnet, determine the IP address of the next hop router.

5. For each subnet, determine the type of route (direct, static, or dynamic) that is used.

6. For each subnet, enter the route information into the routing table in the appropriate format.

7. Test the routing table to make sure that the routes are working correctly

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