CCNA3 Skills-based Assessment
Part 1 of 2 – Assessment of Intermediate Routing skills
Objectives
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Configure OSPF with authentication
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Configure EIGRP
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Configure default routing and propagate it using OSPF
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Verify network connectivity
Preconfigs
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Note: The “no keepalive” command is added to FastEthernet0/0 interface. This will bring the
interface up without having to connect a switch or a hub.
The following items have been pre-configured on these devices:
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The topology cabling
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Hostname on all routers
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Interface IP address on the routers
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Interface clock rate on the routers
CCNA 3: Intermediate Routing – Skills-based Assessment
Following are the actual commands already configured on the devices:
Router1
hostname Router1
interface FastEthernet0/0
ip address 172.16.2.33 255.255.255.224
no keepalive
no shutdown
interface Serial0/0
ip address 172.16.1.2 255.255.255.252
clockrate 56000
no shutdown
Router2
hostname Router2
interface FastEthernet0/0
ip address 172.30.1.1 255.255.255.0
no keepalive
no shutdown
interface Serial0/0
ip address 172.16.1.1 255.255.255.252
no shutdown
interface serial0/1
ip address 10.10.1.1 255.255.255.252
clockrate 56000
no shutdown
Router3
hostname Router3
interface FastEthernet0/0
ip address 172.30.2.1 255.255.255.0
no keepalive
no shutdown
interface serial0/1
ip address 10.10.1.2 255.255.255.252
no shutdown
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CCNA 3: Intermediate Routing – Skills-based Assessment
Configuration Tasks
Configure OSPF with Authentication
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Configure OSPF routing between Router1 and Router2 with the process ID of 50.
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Configure OSPF so only the following 172.16.0.0 subnets will be routed.
o
172.16.2.32/27
o
172.16.1.0/30
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Configure Router1 with the OSPF router ID of 192.168.1.1.
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Configure Router2 with the OSPF router ID of 192.168.1.2.
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Configure the OSPF hello interval to 5 seconds and the OSPF dead interval to 20 seconds.
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Configure the OSPF communication between the routers to use authentication with MD5
encryption.
Configure EIGRP
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Configure EIGRP between Router2 and Router3 with an AS of 100.
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EIGRP should only route for the following networks.
o
10.10.1.0/30
o
172.30.1.0/24
o
172.30.2.0/24
Configure Default Routing and propagate it using OSPF
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On Router 2, configure a default static route to Router 3.
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Propagate that default route to all routers in the OSPF routing domain.
Verify connectivity
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Router2 should be able to ping all interfaces on all routers. Router1 and Router3 will not be able
to ping all interfaces since there is no redistribution between OSPF and EIGRP in this scenario.
Router1 should be able to ping all OSPF-enabled interfaces and Router3 should be able to ping
all EIGRP-enabled interfaces.
CCNA 3: Intermediate Routing – Skills-based Assessment
Configuration Tasks
Configure OSPF with Authentication
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Configure OSPF routing between Router1 and Router2 with the process ID of 50.
Router(config) # router ospf process-id
Router(config-router)# network address wildcard-mask area area-id
Router1(config) # router ospf 50
Router1(config-router)# network 172.16.2.32 0.0.0.31 area 0
Router1(config-router)# network 172.16.1.0 0.0.0.3 area 0
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Configure OSPF so only the following 172.16.0.0 subnets will be routed.
o
172.16.2.32/27
o
172.16.1.0/30
Configure Router1 with the OSPF router ID of 192.168.1.1.
Router(config)# interface loopbacknumber
Router(config-if)#ip address ip-address subnet-mask
Router1(config)# interface loopback 0
Router1(config-if)#ip address 192.168.1.1 255.255.255.255
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Configure Router2 with the OSPF router ID of 192.168.1.2.
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Configure the OSPF hello interval to 5 seconds and the OSPF dead interval to 20 seconds.
Router(config-if)# ip ospf hello-interval seconds
Router(config-if)# ip ospf dead-interval seconds
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Configure the OSPF communication between the routers to use authentication with MD5
encryption.
Router(config-if)# ip ospf message-digest-key key-idmd5 encryption-type key
Router(config-router)# area area-id authentication message-digest
Router1(config-if)# ip ospf message-digest-key 1 md5 7 pwx
Router1(config)# router ospf 50
Router(config-router)# area 0 authentication message-digest
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CCNA 3: Intermediate Routing – Skills-based Assessment
Configure EIGRP
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Configure EIGRP between Router2 and Router3 with an AS of 100.
router(config)#router eigrp autonomous-system-number
router(config-router)#network network-number
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EIGRP should only route for the following networks.
o
10.10.1.0/30
o
172.30.1.0/24
o
172.30.2.0/24
Configure Default Routing and propagate it using OSPF
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On Router 2, configure a default static route to Router 3.
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Propagate that default route to all routers in the OSPF routing domain.
ip route 0.0.0.0 0.0.0.0 10.10.1.2
(config-router)# default-information originate
Verify connectivity
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Router2 should be able to ping all interfaces on all routers. Router1 and Router3 will not be able
to ping all interfaces since there is no redistribution between OSPF and EIGRP in this scenario.
Router1 should be able to ping all OSPF-enabled interfaces and Router3 should be able to ping
all EIGRP-enabled interfaces.
CCNA 3: Intermediate Routing – Skills-based Assessment