Week 3 Guided Practice OSPF

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Apr 3, 2024

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Introduction to Routing and Switching Week 3 Guided Practice – OSPF Objective In this Guided Practice you will be connecting and configuring a small subnetted network with multiple routers. Technology You will use Packet Tracer in this practice. Anytime you see a 50 in an IP address replace with your assigned number. Task 1 – Adding and connecting devices You will start with the network below in the packet tracer file in this practice. You will connect to the CSU-DSU later in this practice. For now, you can select the network below and drag it to the corner of your Packet Tracer desktop.
Drag and label the following devices to the desktop: three 4321 routers, four 2960 switches, six PCs, two servers, an RT300N wireless router and a smart phone. Make sure to add serial port modules to the routers as you did in the previous Guided Practices and Performance Assessment. Connect the routers together using a Serial DCE cable. Click and drag from the R1 router (connect to S0/1/0) to the R2 router and connect to S0/1/1. Again, using the Serial DCE cable, click and drag from the R2 router (connect to S0/1/0) to the R3 router and connect on S0/1/1. Finally connect from the R3 router, S0/1/0, to the R1 router on S0/1/1. We will now connect the other devices. Connect from the G0/0/0 port on the R2 router to the G0/1 port on the Sw1 switch using a straight-through cable. Connect Server1 to Fa0/1 on the Sw1 switch and PC5 to Fa0/12 on the Sw1 switch using a straight-through cable. Connect the Sw1 switch on port G0/2 to the Sw1 switch on port G0/1 using a straight-through cable. Connect Server2 to Fa0/1 on the Sw2 switch and PC6 to Fa0/12 on the Sw2 switch using a straight-through cable.
Connect from the G0/0/0 port on the R3 router to the G0/1 port on the Sw3 switch using a straight- through cable. Connect the Sw3 switch on port G0/2 to the Sw4 switch on port G0/1 using a straight- through cable. Connect PC1 to Fa0/1 on the Sw3 switch and PC2 to Fa0/12 of the Sw3 switch using a straight-through cable. Connect PC3 to Fa0/1 on the Sw4 switch and PC4 to Fa0/12 of the Sw4 switch using a straight-through cable. Finally, connect the G0/0/1 port on the R1 router to the Internet port of the WRT300N wireless router using a straight-through cable. The smart phone should automatically be connected to the WRT300N. You will notice that the connections to the PCs and servers have all turned green, but the links to the routers are still red. We will configure the routers in the next task and all links will turn green. Take a screenshot. Deliverables for Task 1 Screenshot of your network labeled and connected.
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Task 2– Configure the network In this task we will configure the devices. We will need to bring up the router interfaces to a usable state and assign IP addresses to them. We will configure the switches with VLANs and trunks. Start off by bringing each of the router interfaces we are using up. Below is an example of bringing up the interfaces for the R2 router. Do the same for the R1 and R3 router interfaces. Ip
Take a look at the table below. This is a standard network connection grid that you will be using in the future for all of your network programming. Notice we are using different subnet masks on the routers- we will be using VLSM (Variable Length Subnet Mask), a technique that allows network administrators to divide an IP address space into subnets of different sizes, rather than dividing it into subnets of the same size. System Port Connect To IP address Subnet Mask Clock Rate Users <ashbro0416>-R1 G0/0/0 CSU-DSU 11.0.0.16 255.255.255.0   G0/0/1 Wi-Fi AP 10.16.3.1 255.255.255.252 1 S0/1/0 R2 10.16.5.1 255.255.255.252 500000 S0/1/1 R3 10.16.5.10 255.255.255.252 < ashbro0416 >-R2 G0/0/0.10 Sw1 10.16.1.1 255.255.255.128 100 G0/0/0.20 Sw1 10.16.1.129 255.255.255.192 50 G0/0/0.30 Sw1 10.16.1.193 255.255.255.224 25 G0/0/0.40 Sw1 10.16.1.225 255.255.255.240 10 S0/1/0 R3 10.16.5.5 255.255.255.252 500000 S0/1/1 R1 10.16.5.2 255.255.255.252 < ashbro0416 >-R3 G0/0/0.10 Sw3 10.16.2.1 255.255.255.192 60 G0/0/0.20 Sw3 10.16.2.65 255.255.255.192 60 G0/0/0.30 Sw3 10.16.2.129 255.255.255.192 60 G0/0/0.40 Sw3 10.16.2.193 255.255.255.192 60 S0/1/0 R1 10.16.5.9 255.255.255.252 500000 S0/1/1 R2 10.16.5.6 255.255.255.252 Once you configure all the interfaces in the table above, run a show ip interface brief on each router to show each interface configured. Take a screenshot of each. Configure the clock rate for the DCE ends of each link between the routers. Take a screenshot of each.
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Let us now configure the VLANs and trunks on the switches.
Make sure to add VLANs 30 and 40 to the S1 switch.
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Make sure to add VLANs 30 and 40 to the S3 switch. Let us verify the switches are configured with the VLANs and trunks on each switch in the running- configuration with a show running-config command. Scroll down to the bottom to show the trunks configured. Here is an example of the S1 switch. Take a screenshot of each.
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Deliverables for Task 2 Screenshots of show ip interface brief for each router showing configured interfaces. Screenshot of show running-configuration on the S1, S2, S3 and S4 switches showing VLANs and trunks. Task 3– Configure routing using OSPF Now let us shift our focus to OSPF. We will configure OSPF on the R1, R2 and R3 routers. The Internet router already has OSPF configured, so you won’t need to configure anything there. Connect G0/0/0 of the R1 router to the CSU-DSU with a straight-through cable. Take a screenshot.
Make the following OSPF configurations on your routers (keep in mind replace 50 with your assigned number):
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You should now be able to ping from your routers to the Internet server. Ping 11.1.1.10 from the R1, R2 and R3 routers. Take a screenshot of each.
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Let us look at our routing table of the R1, R2 and R3 routers. Here is an example of the R1 routing table. Take a screenshot of each.
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Deliverables for Task 3 Screenshot of G0/0/0 of the R1 router connected to the CSU-DSU with a straight-through cable. Ping from the R1, R2 and R3 routers to the Internet server. Screenshot of R1, R2 and R3 routing tables. Task 4 – Configure DHCP Let us now configure DCHP on R1 for the devices on your networks. We will create a DHCP pool for the Wi-Fi router, the PCs and servers. In the past we configured DCHP pools on multiple routers, but here
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we will consolidate the DHCP pools to only the R1 router. Below is an example of the DCHP pools you will need to configure. Take a screenshot.
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Now let us add an IP-helper to the R2 and R3 routers. Below is an example from the R2 router.
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Now verify DCHP is working properly on your devices. Below is an example from PC5. Take a screenshot.
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Your devices should all receive IP addresses using DHCP now. Test connectivity by pinging from PC4 to PC6. Take a screenshot.
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Deliverables for Task 4 Screenshot of DCHP pools created on the R1 router. Screenshot of PC5 with IP address via DCHP. Screenshot of ping from PC4 to P6. Task 5 – Configure IPv6 for SLAAC We will now configure the R2 router with IPv6 and setup SLAAC configuration. SLAAC (Stateless Address Auto-configuration) is a way to automatically assign an IPv6 address to a device. Configure the following below on the R2 router. Replace 50 in each IPv6 address with your assigned number. Take a screenshot.
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Now go to server1, PC5, server2 and PC6 and verify that IPv6 using SLAAC was successful. Below is an example of server1. Make sure you toggle from Static to Automatic under IPv6 Configuration. You’ll notice your devices receive an IPv6 address and a Link Local Address. Take a screenshot of each.
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Finally test connectivity between PC5 and PC6 using IPv6. Take a screenshot.
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Deliverables for Task 5 Screenshot of IPv6 configured on the R2 router. Screenshots of server1, PC5, server2 and PC6 IPv6 addresses.
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Screenshot of ping from PC5 to PC6 using IPv6.
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