Close Menu
    Facebook X (Twitter) Instagram
    • Download Cisco Packet Tracer
    Facebook X (Twitter) Instagram Pinterest Vimeo
    IT Beginner
    • Home
    • Server
    • WordPress
    IT Beginner
    Home»ICND1 Labs»Lab 4-3: Implementing OSPF
    ICND1 Labs

    Lab 4-3: Implementing OSPF

    03/08/2018Updated:03/08/2018No Comments5 Mins Read

    Visual Topology

    Command Line

    Command Description
    Erase startup-config or Write erase Removes the startup-configuration from NVram
    Hostname Defines a system device name shown in the prompt
    interface name Enters interface configuration mode
    ip address ip address mask Assigns an IP address to an interface
    Network {address [wildcard mask]} area id Defines which interfaces are part of the OSPF routing process
    router ospf process id Enters the OSPF configuration mode and defines the locally significant process id
    show ip ospf interface Displays interface information related to OSPF
    show ip ospf neighbor Shows the output of the OSPF adjacency table
    show ip route Shows the contents of the IPv4 routing table
    [no] shutdown Disables or enables an interface

    This lab exercise requires two students to work together to complete the tasks. Use the
    visual topology diagram to ascertain the correct IP addressing plan for your PC, Router and
    Switch.

    Physical Topology Diagram

    • Task 1: Setting-up a Routed WAN connection.
    • Task 2: Configuring OSPF.

    Lab 4-3: Implementing OSPF

    Task 1: Setting-up a Routed WAN connection.

    Step 1: Access the CLI on both your switch and router.

    Step 2: Clear down their current configuration and reload the devices using the erase startup-config and reload commands. Make sure you do this on both the router and the switch.

    If the system indicates that the system configuration has been modified and do you want to save ? Answer no

    Confirm the reload.

    Step 3: The devices have been set back to factory defaults (well almost) ignore and abort the setup dialogue options.

    Using the information in the visual topology diagram, setup the correct IP addresses and hostnames on all 3 devices.

    Hint....
    Switch#conf t
    Switch(config)#hostname SW1
    SW1(config)#interface vlan 1
    SW1(config-if)#ip address 10.1.1.10 255.255.255.0
    SW1(config-if)#no shut 
    Router#conf t
    Router(config)#hostname R1
    R1(config)#interface fa0/0 
    R1(config-if)#ip address 10.1.1.1 255.255.255.0
    R1(config-if)#no shut
    R1(config-if)#interface fa0/1
    R1(config-if)#ip address 172.16.1.17 255.255.255.240
    R1(config-if)#no shut

    Check that the interfaces are up/up, troubleshoot any discrepancies.

    Remember to set a static IP address on the PC interface and check connectivity between the PC and its default router.

    Task 2: Configuring OSPF.

    By default routers do not run any dynamic routing protocols, however routing between IPv4 locally connected interfaces is enabled by default.

    Step 1: Execute the relevant show command to display the contents of the routing table.

    The table displays only two connected subnets and therefore this router only has paths for subnets 10.1.1.0 and 172.16.1.16.

    Step 2: Enter OSPF configuration mode and use a process id of 1.

    Rx(config)#Router ospf 1

    Step 3: Enable both interfaces for ospf and place them in the backbone area 0

    R1 only.....
    R1(config-router)#network 10.1.1.1 0.0.0.0 area 0
    R1(config-router)#network 172.16.1.17 0.0.0.0 area 0
    R2 only.....
    R2(config-router)#network 10.2.2.1 0.0.0.0 area 0
    R2(config-router)#network 172.16.1.18 0.0.0.0 area 0

    Step 4: Check the contents of the routing table. Do you see any additional entries?

    Step 5: Check connectivity by pinging the IP address of the other router’s fa0/0 interface.

    Step 6: Save the configuration on both the switch and router.

    Lab Answer Keys:

    [sociallocker id=”4139″]

    This lab exercise requires two students to work together to complete the tasks. Use the visual topology diagram to ascertain the correct IP addressing plan for your PC, Router and Switch.

    Task 1: Setting-up a Routed WAN connection.

    Step 1: Access the CLI on both your switch and router.

    Step 2: Clear down their current configuration and reload the devices using the erase startup-config and reload commands. Make sure you do this on both the router and the switch.

    If the system indicates that the system configuration has been modified and do you want to save ? Answer no

    Confirm the reload.

    Step 3: The devices have been set back to factory defaults (well almost) ignore and abort the setup dialogue options.

    Using the information in the visual topology diagram, setup the correct IP addresses and hostnames on all 3 devices.

    Hint....
    Switch>en
    Switch#conf t
    Switch(config)#hostname SW1
    SW1(config)#interface vlan 1
    SW1(config-if)#ip address 10.1.1.10 255.255.255.0
    SW1(config-if)#no shut
    Router>en
    Router#conf t
    Router(config)#hostname R1
    R1(config)#interface fa0/0 
    R1(config-if)#ip address 10.1.1.1 255.255.255.0
    R1(config-if)#no shut
    R1(config-if)#interface fa0/1
    R1(config-if)#ip address 172.16.1.17 255.255.255.240
    R1(config-if)#no shut

    Check that the interfaces are up/up, troubleshoot any discrepancies.

    Remember to set a static IP address on the PC interface and check connectivity between the PC and its default router.

    Task 2: Configuring OSPF.

    By default routers do not run any dynamic routing protocols, however routing between IPv4 locally connected interfaces is enabled by default.

    Step 1: Execute the relevant show command to display the contents of the routing table.

    R#sh ip route

    The table displays only two connected subnets and therefore this router only has paths for subnets 10.1.1.0 and 172.16.1.16.

    Step 2: Enter OSPF configuration mode and use a process id of 1.

    R(config)#Router ospf 1

    Step 3: Enable both interfaces for ospf and place them in the backbone area 0

    R1 only.....
    R1(config-router)#network 10.1.1.1 0.0.0.0 area 0
    R1(config-router)#network 172.16.1.17 0.0.0.0 area 0
    R2 only.....
    R2(config-router)#network 10.2.2.1 0.0.0.0 area 0
    R2(config-router)#network 172.16.1.18 0.0.0.0 area 0

    Step 4: Check the contents of the routing table. Do you see any additional entries?

    Yes you now see an OSPF advertised route from the neighbouring router

    Step 6: Save the configuration on both the switch and router.

    R#copy run start

    [/sociallocker]

    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Previous ArticleLab 4-2: Using a Router to provide DHCP Services
    Next Article Lab 5-1: Configure basic IPv6

    Related Posts

    ICND1 Labs

    Lab 5-2: Configure IPv6 Routing

    05/08/2018
    ICND1 Labs

    Lab 5-1: Configure basic IPv6

    04/08/2018
    ICND1 Labs

    Lab 4-2: Using a Router to provide DHCP Services

    02/08/2018
    Subscribe
    Notify of
    guest

    guest

    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    0 Comments
    Oldest
    Newest Most Voted
    Inline Feedbacks
    View all comments
    Tags
    apache centos Centos 6 cuda Desktop Environment dual boot environment featured gnome GUI hostname hosts intel kernel kill lamp server lemp server life MariaDB netflix nginx nvidia password php-fpm phpmyadmin pids processes s.m.a.r.t Security session solid state drive ssd ssh ssh server tag 1 tag 2 Ubuntu upgrade varnish VirtualBox VNC Server web server window manager wordpress xfce
    Facebook X (Twitter) Instagram Pinterest

    Type above and press Enter to search. Press Esc to cancel.

    wpDiscuz