Objectives
· Interpret router outputs.
· Identify networks and IP addresses for each router.
· Draw a diagram of the network topology.
· Reflect upon and document the network implementation
Background / Preparation
In this lab you will create a network topology diagram based only on the output of the show ip route command from two routers. The show ip route command displays the current state of the routing table. Routers R1 and R2 are directly connected over a WAN link and both are running the RIP dynamic routing protocol. In addition to the WAN link, each of the routers is connected to its own local networks.
Step 1:Examine The Routing Table Entries For The Router R1
a. Examine show ip route output from router R1 shown below
b. How many networks does router R1 know about? 5 networks
c. How many networks are directly connected to this router? 3 networks
d. How many networks have been learned from another router? 2 network
e. Using the codes at the beginning of the show ip route output what does the ‘R’ mean? R adalah router
f. In the routers learned via RIP to which device does the ip address 172.17.0.2 belong? Ya ada
g. In the routers learned via RIP to which device is serial 0/0 referring and what does it mean? 0/0 adalah interfacenya yaitu menampilkan informasi khusus hardware interface. Perintah ini harus di-set termasuk nomor port/slot dari interface serial.
Step 2: Examine The Routing Table Entries For The Router R2
a. Examine show ip route output from router R2 shown below
b. How many networks does router R2 know about? 5 networks
c. How many networks are directly connected to this router? 3 networks
d. How many networks have been learned from another router? 2 networks
e. Using the codes at the beginning of the show ip route output what does the ‘R’ mean? R adalah router.
f. In the routers learned via RIP to which device does the ip address 172.17.0.2 belong? Ya ada
g. In the routers learned via RIP to which device is serial 0/0 referring and what does it mean? Serial 0/0 adalah interface –nya yaitu menampilkan informasi khusus hardware interface. Perintah ini harus di-set termasuk nomor port/slot dari interface serial.
Step 3: Document Router Interfaces and IP Addresses
a. Based on the shown ip router output from R1 and R2
Device | interface | IP Address | Subnet mask (dotted decimal and/xx) |
R1 | 0/0 | 172.17.0.0 | 255.255.0.0/16 |
R1 | 0/0 | 192.168.1.0 | 255.255.255.0/24 |
R1 | 0/1 | 192.168.2.0 | 255.255.255.0/24 |
R2 | 0/0 | 172.17.0.0 | 255.255.0.0/16 |
R2 | 0/0 | 192.168.3.0 | 255.255.255.0/24 |
R2 | 192.168.4.0 | 255.255.255.0/24 |
b. In this example can the exact IP address of all router interface be determined by looking at the routing tables? Ya bias
c. Which router interface IP address can be determined from the routing tables? Interface 0/0 dan 0/1
Step 4: Create a Network Topology Diagram
Step 5: Reflection
a. What do you think would happen to the entries in the routing table on R1 if one of the enthernet networks on R2 was disconnected? Maka pemrosesan sinyal untuk data jaringan computer akan terputus atau tidak akan terjadi.
b. What do you think would happen to the entries in the routing tables on R1 and R2 if the serial interface on R2 was shut down?
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