Lab 5.1.2.4 Designing and Creating a Redundant Network
Step 1: Determine the minimum number of links to meet the requirements
Step 2: Implement the design
Step 3: Verify the design
a. Do three paths between the east and west coast operations exist? jawab: ya
b. Does each site have at least two links? Jawab : ya
c. Does each site on the east coast have two paths to the west coast? Jawab: tidak
d. Does each site on the west coast have two paths to the east coast? Jawab : ya
e. Will one device failure affect multiple sites? Jawab : east coast to west coast
Reflection
a. What network topology is now implemented after adding redundancy? Jawab : Extended Star
f. What is an advantage to using the topology implemented after adding redundancy? Jawab : Partial Mesh
b. What is a disadvantage to using the topology implemented after redundancy was added? Jawab: redudansi meminimalkan dampak bahwa kegagalan dari suatu peralatan telah di operasikan oleh jaringan
c. Why would a company, such as the one in this case, suddenly decide to implement the type of topology used in step b? jawab:
Dalam kasus ini,perusahaan kehilangan 16 jam produksi dan $600,000 perusahaan. Tidak ada perusahaan yang ingin menurunkan penjualan atau waktu yang menyebabkan kerugian padakeuntungan untuk perusahaan mereka.
Lab 5.2.3 Configuring RIPv2 with VLSM, and Default Route Propagation
Step 1: Connect the equipment.
Step 2: Perform basic configurations on the routers.
Step 3: Perform basic configurations on the switches
Step 4: Configure the hosts with the proper IP address, subnet mask, and default gateway.
Step 5: Configure RIP v2 routing
a. On R1, configure RIP version 2 as the routing protocol and advertise the appropriate networks: R1(config)#router rip
R1(config-router)#version 2
R1(config-router)#network 172.16.1.0
R1(config-router)#network 172.16.3.0
Predict: how will RIP report these subnets in the routing table? Jawab: As a 172.16.0.0 summary route, as well as individual subnets of the 172.16.0.0 network.
b. From the network commands, which interfaces are participating in RIP routing? Jawab : Fa0/0, S0/0/0.
c. Perform a similar configuration on R2, setting the version, advertising the appropriate networks, and turning off auto-summarization
d. On R3, perform a similar configuration. Do not advertise the 209.165.201.0/24 network.
Step 6: Configure and redistribute a default route for Internet access.
Step 7: Verify the routing configuration.
a. View the routing table on R3:
R3#show ip route
<<output omitted>>
Gateway of last resort is 209.165.201.2 to network 0.0.0.0
172.16.0.0/30 is subnetted, 4 subnets
R 172.16.1.0 [120/1] via 172.16.3.1, 00:00:17, Serial0/0/0
R 172.16.2.0 [120/1] via 172.16.3.5, 00:00:12, Serial0/0/1
C 172.16.3.0 is directly connected, Serial0/0/0
C 172.16.3.4 is directly connected, Serial0/0/1
C 209.165.201.0/24 is directly connected, FastEthernet0/0
S* 0.0.0.0/0 [1/0] via 209.165.201.2
How can you tell from the routing table that the subnetted network shared by R1, R2 and R3 has a pathway for Internet traffic? Jawab : ada gateway pada resort terakhir, dan rute default muncul di table.
b. View the routing tables on R2 and R1.
How is the pathway for Internet traffic provided in their routing tables? Jawab : There is a Gateway of Last Resort leading to R3, and the default route shows up as a distributed RIP
route.
Step 8: Verify connectivity.
a. Simulate sending traffic to the Internet by pinging from the host PCs to 209.165.201.2. Were the pings successful? Jawab : ya
b. Verify that hosts within the subnetted network can reach each other by pinging between Host1 and Host2.
Were the pings successful? Jawab : ya
Step 9: Reflection.
How did R1 and R2 learn the pathway to the Internet for this network? jawab: From RIP routing updates received from the router where the route was configured (R3).
Lab 5.4.1.4 Implementing EIGRP
Step 1: Connect the equipment
Step 2: Perform basic configurations on the routers
Step 3: Configure EIGRP routing with default commands
a. On Gateway, configure EIGRP as the routing protocol with an autonomous system number of 100, and advertise the appropriate networks.
Gateway(config)#router eigrp 100
Gateway(config-router)#network 10.0.0.0
Gateway(config-router)#network 10.0.0.4
Predict: How will EIGRP report these subnets in the routing table? Jawab : As a 10.0.0.0 summary route, as well as individual subnets of the 10.0.0.0 network.
b. On Branch1, configure EIGRP as the routing protocol with an autonomous system number of 100, and advertise the appropriate networks:
Branch1(config)#router eigrp 100
Branch1(config-router)#network 10.0.0.0
Branch1(config-router)#network 10.0.0.8
Branch1(config-router)#network 172.16.0.0
Branch1(config-router)#network 172.16.1.0
Branch1(config-router)#network 172.16.2.0
Branch1(config-router)#network 172.16.3.0
c. Perform a similar configuration on Branch2, using EIGRP 100 and advertising the appropriate networks.
Step 4: Configure MD5 Authentication
a. Create a keychain named discchain.
b. Configure a key 1 that has a key string of san-fran.
c. Enable the workgroup router to utilize EIGRP MD5 authentication with each of your EIGRP neighbors and to use the keychain icndchain. Branch1(config)#key chain discchain
Branch1(config-keychain)#key 1
Branch1(config-keychain-key)#key-string san-fran
Branch1(config-keychain-key)#end
Branch1#config terminal
Branch1(config)#interface serial0/1/1
Branch1(config-if)#ip authentication mode eigrp 100 md5
Branch1(config-if)#ip authentication key-chain eigrp 100 discchain (repeat for all routers on all necessary interfaces)
d. Look at the contents of the Router1 routing table to ensure all routing updates are being accepted.
Gateway#show ip route
List the routes that are shown:
Step 5: Reflection
a. What is the importance of enabling authentication on the routing updates?
Lab 5.4.2.4 EIGRP Configuring Automatic and Manual Route Summarization and Discontiguous Subnets
Step 1: Connect the equipment
Step 2: Perform basic configurations on the routers
Step 3: Configure EIGRP routing with default commands
a. On Gateway, configure EIGRP as the routing protocol with an autonomous system number of 100, and advertise the appropriate networks.
Gateway(config)#router eigrp 100
Gateway(config-router)#network 10.0.0.0
Gateway(config-router)#network 10.0.0.4
Predict: How will EIGRP report these subnets in the routing table? Jawab : As a 10.0.0.0 summary route, as well as individual subnets of the 10.0.0.0 network.
b. On Branch1, configure EIGRP as the routing protocol with an autonomous system number of 100, and advertise the appropriate networks:
Branch1(config-router)#network 10.0.0.0 0.0.0.3
Branch1(config-router)#network 10.0.0.8 0.0.0.3
Branch1(config-router)#network 172.16.0.0 0.0.0.255
Branch1(config-router)#network 172.16.1.0 0.0.0.255
Branch1(config-router)#network 172.16.2.0 0.0.0.255
Branch1(config-router)#network 172.16.3.0 0.0.0.255
c. Perform a similar configuration on Branch2, using EIGRP 100 and advertising the appropriate networks.
Step 4: Verify the routing configuration
View the routing table on Gateway.
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
D 10.0.0.0/8 is a summary, 00:02:33, Null0
C 10.0.0.0/30 is directly connected, Serial0/0/0
C 10.0.0.4/30 is directly connected, Serial0/0/1
D 10.0.0.8/30 [90/2681856] via 10.0.0.6, 00:03:19, Serial0/0/1
[90/2681856] via 10.0.0.2, 00:02:34, Serial0/0/0
D 172.16.0.0/16 [90/2297856] via 10.0.0.2, 00:02:09, Serial0/0/0
D 172.17.0.0/16 [90/2297856] via 10.0.0.6, 00:03:15, Serial0/0/1
Which subnets are not reported in this output? Jawab : The subnet dikonfigurasikan untuk jaringan 172.16.0.0 dan 172.17.0.0 tidak hadir
Why are there two paths reported for the 10.0.0.8/30 route? Jawab :Karena tidak ada perintah bandwidth yang telah dikonfigurasi, EIGRP memiliki dua jalan sama-biaya untuk melaporkan.
Step 5: Remove Automatic summarization
Step 6: Verify the routing configuration
Are all subnets represented in the table? Jawab : ya
What kind of interface is “Null0”? jawab : Sebuah antarmuka virtual untuk rute ringkasan.
Step 7: Configure manual summarization
On Branch2, configure manual summarization to force EIGRP to summarize only the 172.17.0.0 subnets.
Branch2(config)#interface s0/0/0
Branch2(config-if)#ip summary-address eigrp 100 172.17.0.0 255.255.252.0
Branch2(config)#interface s0/0/1
Branch2(config-if)#ip summary-address eigrp 100 172.17.0.0 255.255.252.0
View the routing tables of Branch1 and Gateway again. Describe the effect that these summary commands have on the routing tables. Jawab:
The 172.17.0.0, 172.17.1.0, 172.17.2.0 and 172.17.3.0 networks are summarized but the 172.16.0.0
networks are not.
Step 7: Reflection
a. Although removing automatic summarization solved the issue of missing subnets, what possible problem could it cause? Jawab:
Tabel routing sangat panjang, dan itu akan memperlambat proses pencarian.
b. How could removing automatic summarization help in troubleshooting an EIGRP network? jawab:
Memeriksa output terhadap semua subnet yang mungkin akan mengungkapkan subnet (s) yang hilang. Itu adalah sambungan dan konfigurasi yang perlu diperiksa.
c. How did the use of loopback interfaces make this lab easier to complete? Jawab: Kurang peralatan yang diperlukan, waktu lebih sedikit untuk mengatur dan peralatan kabel.
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