Laporan Configuring Basic Eigrp For Ipv4
Laporan Configuring Basic Eigrp For Ipv4
Laporan Configuring Basic Eigrp For Ipv4
Disusun oleh :
Nama : Rohana
Kelas : 2CB
NIM : 061930700156
Topology
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Lab – Configuring Basic EIGRP for IPv4
Addressing Table
Device Interface IP Address Subnet Mask Default Gateway
Objectives
Part 1: Build the Network and Verify Connectivity
Part 2: Configure EIGRP Routing
Part 3: Verify EIGRP Routing
Part 4: Configure Bandwidth and Passive Interfaces
Background / Scenario
Enhanced Interior Gateway Routing Protocol (EIGRP) is a powerful distance vector routing protocol and
is relatively easy to configure for basic networks.
In this lab, you will configure EIGRP for the topology and networks shown above. You will modify
bandwidth and configure passive interfaces to allow EIGRP to function more efficiently.
Note: The routers used with CCNA hands-on labs are Cisco 1941 Integrated Services Routers (ISRs) with
Cisco IOS Release 15.2(4)M3 (universalk9 image). Other routers and Cisco IOS versions can be used.
Depending on the model and Cisco IOS version, the commands available and output produced might vary
from what is shown in the labs. Refer to the Router Interface Summary Table at the end of this lab for the
correct interface identifiers.
Note: Make sure that the routers have been erased and have no startup configurations. If you are unsure,
contact your instructor.
Instructor Note: Refer to the Instructor Lab Manual for the procedures to initialize and reload devices.
Required Resources
3 Routers (Cisco 1941 with Cisco IOS Release 15.2(4)M3 universal image or comparable)
3 PCs (Windows 7, Vista, or XP with terminal emulation program, such as Tera Term)
Console cables to configure the Cisco IOS devices via the console ports
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Lab – Configuring Basic EIGRP for IPv4
Step 2: Advertise the directly connected networks on R1 using the wildcard mask.
R1(config-router)# network 10.1.1.0 0.0.0.3
R1(config-router)# network 192.168.1.0 0.0.0.255
R1(config-router)# network 10.3.3.0 0.0.0.3
Why is it a good practice to use wildcard masks when advertising networks? Could the mask have been
omitted from any of the network statements above? If so, which one(s)?
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You should only advertise networks that you control. In earlier versions of EIGRP, classful boundaries were
assumed meaning that the whole network space was advertised. For example, when advertising the 10.1.1.0
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Lab – Configuring Basic EIGRP for IPv4
network, the 10.0.0.0/8 could be assumed. The wildcard mask could have been omitted from the
192.168.1.0 network statement because EIGRP would automatically assume the 0.0.0.255 classful mask.
Step 3: Enable EIGRP routing and advertise the directly connected networks on R2 and R3.
You will see neighbor adjacency messages as interfaces are added to the EIGRP routing process. The
messages on R2 are displayed as an example.
*Apr 24 15:24:59.543: %DUAL-5-NBRCHANGE: EIGRP-IPv4 10: Neighbor 10.1.1.1
(Serial0/0/0) is up: new adjacency
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Lab – Configuring Basic EIGRP for IPv4
EIGRP automatically does equal-cost load balancing. R1 has two ways to reach the 10.2.2.0/30 network.
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Lab – Configuring Basic EIGRP for IPv4
Maximum path: 4
Routing for Networks:
10.1.1.0/30
10.3.3.0/30
192.168.1.0
Routing Information Sources:
Gateway Distance Last Update
10.3.3.2 90 02:38:34
10.1.1.2 90 02:38:34
Distance: internal 90 external 170
Based on the output of issuing the show ip protocols command, answer the following questions.
What AS number is used? _____ 10
What networks are advertised?
_______________________________________________________________________________________
10.1.1.0/30, 10.3.3.0/30, and 192.168.1.0/24
What is the administrative distance for EIGRP? _________________________ 90 internal and 170 external
How many equal cost paths does EIGRP use by default? _____ 4
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Lab – Configuring Basic EIGRP for IPv4
Issue show ip route command on R1. Is there a difference in the routing table? If so, what is it?
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D -
EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia -
IS-IS inter area, * - candidate default, U - per-user static route o - ODR,
P - periodic downloaded static route, H - NHRP, l - LISP
+ - replicated route, % - next hop override
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Lab – Configuring Basic EIGRP for IPv4
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Lab – Configuring Basic EIGRP for IPv4
Based on your bandwidth configuration, try and determine what the R2 and R3 routing tables will look
like before you issue a show ip route command. Are their routing tables the same or different?
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R2 routing table will be the same as before. It will still have 2 equal cost routes to the 10.3.3.0/30 network.
R3 routing table will now only have 1 route to the 10.1.1.0/30 network via R2.
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Lab – Configuring Basic EIGRP for IPv4
Reflection
You could have used only static routing for this lab. What is an advantage of using EIGRP?
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EIGRP can automatically adjust for network topology changes such as adding networks, or networks
going down. EIGRP automatically picks the best path when the bandwidth of a link is modified, and it will
automatically load balance across multiple equal cost paths.
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Lab – Configuring Basic EIGRP for IPv4
Router Model Ethernet Interface #1 Ethernet Interface #2 Serial Interface #1 Serial Interface #2
1800 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(F0/0) (F0/1)
1900 Gigabit Ethernet 0/0 Gigabit Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(G0/0) (G0/1)
2801 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/1/0 (S0/1/0) Serial 0/1/1 (S0/1/1)
(F0/0) (F0/1)
2811 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(F0/0) (F0/1)
2900 Gigabit Ethernet 0/0 Gigabit Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(G0/0) (G0/1)
Note: To find out how the router is configured, look at the interfaces to identify the type of router and how many
interfaces the router has. There is no way to effectively list all the combinations of configurations for each router
class. This table includes identifiers for the possible combinations of Ethernet and Serial interfaces in the
device. The table does not include any other type of interface, even though a specific router may contain one.
An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can
be used in Cisco IOS commands to represent the interface.
Device Configs
Router R1
R1#sh run
Building configuration...
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Lab – Configuring Basic EIGRP for IPv4
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
bandwidth 2000
ip address 10.1.1.1 255.255.255.252
clock rate 128000
!
interface Serial0/0/1
bandwidth 64
ip address 10.3.3.1 255.255.255.252
!
!
router eigrp 10
network 10.1.1.0 0.0.0.3
network 10.3.3.0 0.0.0.3
network 192.168.1.0
passive-interface GigabitEthernet0/0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
control-plane
!
!
line con 0
password cisco
logging synchronous
login
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport input all
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Lab – Configuring Basic EIGRP for IPv4
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
password cisco
logging synchronous
login
transport input all
!
scheduler allocate 20000 1000
!
end
Router R2
R2#sh run
Building configuration...
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Lab – Configuring Basic EIGRP for IPv4
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
bandwidth 2000
ip address 10.1.1.2 255.255.255.252
!
interface Serial0/0/1
bandwidth 2000
ip address 10.2.2.2 255.255.255.252
clock rate 128000
!
!
router eigrp 10
network 10.1.1.0 0.0.0.3
network 10.2.2.0 0.0.0.3
network 192.168.2.0
passive-interface GigabitEthernet0/0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
control-plane
!
line con 0
password cisco
logging synchronous
login
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport input all
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
password cisco
logging synchronous
login
transport input all
!
scheduler allocate 20000 1000
!
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Lab – Configuring Basic EIGRP for IPv4
end
Router R3
R3#sh run
Building configuration...
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Lab – Configuring Basic EIGRP for IPv4
!
interface Serial0/0/1
bandwidth 2000
ip address 10.2.2.1 255.255.255.252
!
!
router eigrp 10
network 10.2.2.0 0.0.0.3
network 10.3.3.0 0.0.0.3
network 192.168.3.0
passive-interface GigabitEthernet0/0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
!
control-plane
!
!
line con 0
password cisco
logging synchronous
login
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport input all
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
password cisco
logging synchronous
login
transport input all
!
scheduler allocate 20000 1000
!
end
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