IGP Interior Gateway Protocol Fundamentals Configuration – Lab Exercise

IGP Interior Gateway Protocol Fundamentals Configuration – Lab Exercise


Pada lab ini anda akan mengkonfigurasi routing protocol RIPv2 dan EIGRP. Alamat IP sudah dikonfigurasi pada router.


Lab Topology


RIP Configuration


1) Enable RIPv2 on every router. Ensure all networks except 203.0.113.0/24 are advertised. Do not perform any summarisation.

R1(config)#router rip

R1(config-router)#version 2

R1(config-router)#network 10.0.0.0

R1(config-router)#no auto-summary


R2(config)#router rip

R2(config-router)#version 2

R2(config-router)#network 10.0.0.0

R2(config-router)#no auto-summary


R3(config)#router rip

R3(config-router)#version 2

R3(config-router)# network 10.0.0.0

R3(config-router)#no auto-summary


R4(config)#router rip

R4(config-router)#version 2

R4(config-router)# network 10.0.0.0

R4(config-router)#no auto-summary


R5(config)#router rip

R5(config-router)#version 2

R5(config-router)#network 10.0.0.0

R5(config-router)#no auto-summary


Notes:

Seluruh router dikonfigurasi dengan router rip. Semuanya dibuat ke RIP versi 2, dengan no auto-summary. Protocol RIP pada topologi ini cukup dengan menggunakan network 10.0.0.0 karena seluruh IP address-nya masih dalam 1 network yaitu 10.0.0.0.


2) Verify all networks are in the router’s routing tables.

R1#show ip route | begin Gate

Gateway of last resort is not set


     10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks

C       10.0.0.0/24 is directly connected, FastEthernet0/0

L       10.0.0.1/32 is directly connected, FastEthernet0/0

C       10.0.1.0/24 is directly connected, FastEthernet0/1

L       10.0.1.1/32 is directly connected, FastEthernet0/1

C       10.0.2.0/24 is directly connected, FastEthernet1/0

L       10.0.2.1/32 is directly connected, FastEthernet1/0

C       10.0.3.0/24 is directly connected, FastEthernet1/1

L       10.0.3.1/32 is directly connected, FastEthernet1/1

R       10.1.0.0/24 [120/1] via 10.0.0.2, 00:00:02, FastEthernet0/0

R       10.1.1.0/24 [120/2] via 10.0.0.2, 00:00:02, FastEthernet0/0

                    [120/2] via 10.0.3.2, 00:00:16, FastEthernet1/1

R       10.1.2.0/24 [120/2] via 10.0.3.2, 00:00:16, FastEthernet1/1

R       10.1.3.0/24 [120/1] via 10.0.3.2, 00:00:16, FastEthernet1/1


Notes:

Routing tables cukup diwakilkan dengan R1. Dapat dilihat bahwa seluruh network sudah saling terhubung dengan protocol RIP.


3) Verify that routing is working by checking that PC1 has connectivity to PC3.


4) Ensure that all routers have a route to the 203.0.113.0/24 network. Internal routes must not advertised to the Service Provider at 203.0.113.2.

R4(config)#router rip

R4(config-router)#passive-interface f1/1

R4(config-router)#network 203.0.113.0


Notes:

Di soal ini, kita diminta untuk mengkoneksikan protocol RIP yang sudah terpasang ke network 203.0.113.0. Namun, network ini tidak boleh advertise route ke arah router Internet. Maka dari itu, perlu ditambahkan command passive-interface f1/1.


5) Verify that all routers have a path to the 203.0.113.0/24 network.

R1#show ip route | begin Gate

Gateway of last resort is not set


     10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks

C       10.0.0.0/24 is directly connected, FastEthernet0/0

L       10.0.0.1/32 is directly connected, FastEthernet0/0

C       10.0.1.0/24 is directly connected, FastEthernet0/1

L       10.0.1.1/32 is directly connected, FastEthernet0/1

C       10.0.2.0/24 is directly connected, FastEthernet1/0

L       10.0.2.1/32 is directly connected, FastEthernet1/0

C       10.0.3.0/24 is directly connected, FastEthernet1/1

L       10.0.3.1/32 is directly connected, FastEthernet1/1

R       10.1.0.0/24 [120/1] via 10.0.0.2, 00:00:26, FastEthernet0/0

R       10.1.1.0/24 [120/2] via 10.0.0.2, 00:00:26, FastEthernet0/0

                    [120/2] via 10.0.3.2, 00:00:23, FastEthernet1/1

R       10.1.2.0/24 [120/2] via 10.0.3.2, 00:00:23, FastEthernet1/1

R       10.1.3.0/24 [120/1] via 10.0.3.2, 00:00:23, FastEthernet1/1

R    203.0.113.0/24 [120/2] via 10.0.3.2, 00:00:23, FastEthernet1/1


Notes:

Seluruh Router sudah dapat terhubung ke network 203.0.113.0.


6) Configure a default static route on R4 to the Internet via the service provider at 203.0.113.2

R4(config)#ip route 0.0.0.0 0.0.0.0 203.0.113.2

Notes:

Default static route berfungsi untuk menambahkan rute default yang sudah ada pada routing tabel. Jadi apabila ada traffic yang mengarah ke network selain yang ada di routing tabel, maka secara otomatis traffic tersebut akan diarahkan ke rute default route. Di mana pada command ini, default route akan diarahkan ke network 203.0.113.2 yaitu Router Internet. 


7) Ensure that all other routers learn via RIP how to reach the Internet.

R4(config)#router rip

R4(config-router)#default-information originate


Notes:

Default-information originate perlu ditambahkan untuk mengaktifkan default route pada protocol RIP ini.


8) Verify all routers have a route to the Internet.

R1#show ip route | begin Gate

Gateway of last resort is 10.0.3.2 to network 0.0.0.0


     10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks

C       10.0.0.0/24 is directly connected, FastEthernet0/0

L       10.0.0.1/32 is directly connected, FastEthernet0/0

C       10.0.1.0/24 is directly connected, FastEthernet0/1

L       10.0.1.1/32 is directly connected, FastEthernet0/1

C       10.0.2.0/24 is directly connected, FastEthernet1/0

L       10.0.2.1/32 is directly connected, FastEthernet1/0

C       10.0.3.0/24 is directly connected, FastEthernet1/1

L       10.0.3.1/32 is directly connected, FastEthernet1/1

R       10.1.0.0/24 [120/1] via 10.0.0.2, 00:00:08, FastEthernet0/0

R       10.1.1.0/24 [120/2] via 10.0.0.2, 00:00:08, FastEthernet0/0

                    [120/2] via 10.0.3.2, 00:00:12, FastEthernet1/1

R       10.1.2.0/24 [120/2] via 10.0.3.2, 00:00:12, FastEthernet1/1

R       10.1.3.0/24 [120/1] via 10.0.3.2, 00:00:12, FastEthernet1/1

R    203.0.113.0/24 [120/2] via 10.0.3.2, 00:00:12, FastEthernet1/1

R*   0.0.0.0/0 [120/2] via 10.0.3.2, 00:00:12, FastEthernet1/1


Notes:

Default route sudah ditambahkan ke routing tables dengan protocol RIP.


EIGRP Configuration


9) Enable EIGRP AS 100 on every router. Ensure all networks except 203.0.113.0/24 are advertised in EIGRP.

R1(config)#router eigrp 100

R1(config-router)#network 10.0.0.0


R2(config)#router eigrp 100

R2(config-router)#network 10.0.0.0 


R3(config)#router eigrp 100

R3(config-router)#network 10.0.0.0 


R4(config)#router eigrp 100

R4(config-router)#network 10.0.0.0 


R5(config)#router eigrp 100

R5(config-router)#network 10.0.0.0 

Notes:

Sama seperti RIP, kita cukup dengan 1 command network 10.0.0.0 untuk seluruh router pada topologi ini. 


10) Verify the routers have formed adjacencies with each other.

R1#show ip eigrp neighbors 

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.0.0.2        Fa0/0          12   00:11:43  40     1000  0   15

1   10.0.3.2        Fa1/1          12   00:09:33  40     1000  0   42


R2#show ip eigrp neighbors

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.0.0.1        Fa0/0          14   01:43:24  40     1000  0   11

1   10.1.0.1        Fa0/1          13   01:42:43  40     1000  0   15


R3#show ip eigrp neighbors 

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.1.0.2        Fa0/1          13   01:43:06  40     1000  0   16

1   10.1.1.1        Fa0/0          13   01:42:40  40     1000  0   23


R4#show ip eigrp neighbors 

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.1.1.2        Fa0/0          11   01:43:02  40     1000  0   17

1   10.1.3.2        Fa1/0          11   01:42:06  40     1000  0   41


R5#show ip eigrp neighbors 

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.1.3.1        Fa0/0          10   01:42:25  40     1000  0   24

1   10.0.3.1        Fa0/1          12   01:39:47  40     1000  0   13


Notes:

Seluruh router sudah terkonfigurasi protocol EIGRP dan sudah saling mengenali tetangga dengan protocol yang sama.


11) Which routing protocol (RIP or EIGRP) do you expect routes to the

10.x.x.x networks to be learned from in the routing tables?

Kedua protocol tersebut (RIP dan EIGRP) akan saling advertise routes-nya masing-masing. Namun dikarenakan Administrative Distances EIGRP (90) lebih baik dibandingkan dengan RIP (120), Secara otomatis router akan memprioritaskan EIGRP sebagai protocol routing utamanya.


12) Do you expect to see any routes from the other routing protocol in the routing tables?

Terdapat protocol RIP yang meng-advertise network 203.0.113.0/24 diantara protocol EIGRP. Rute ini juga digunakan sebagai default static route. Maka dari itu, tidak akan ada perubahan pada rute tersebut.


13) View the routing tables to verify your answers.

R1#show ip route | begin Gate

Gateway of last resort is 10.0.3.2 to network 0.0.0.0


     10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks

C       10.0.0.0/24 is directly connected, FastEthernet0/0

L       10.0.0.1/32 is directly connected, FastEthernet0/0

C       10.0.1.0/24 is directly connected, FastEthernet0/1

L       10.0.1.1/32 is directly connected, FastEthernet0/1

C       10.0.2.0/24 is directly connected, FastEthernet1/0

L       10.0.2.1/32 is directly connected, FastEthernet1/0

C       10.0.3.0/24 is directly connected, FastEthernet1/1

L       10.0.3.1/32 is directly connected, FastEthernet1/1

D       10.1.0.0/24 [90/30720] via 10.0.0.2, 00:34:59, FastEthernet0/0

D       10.1.1.0/24 [90/33280] via 10.0.0.2, 00:34:21, FastEthernet0/0

D       10.1.2.0/24 [90/35840] via 10.0.0.2, 00:33:56, FastEthernet0/0

D       10.1.3.0/24 [90/261120] via 10.0.3.2, 00:33:01, FastEthernet1/1

R    203.0.113.0/24 [120/2] via 10.0.3.2, 00:00:18, FastEthernet1/1

R*   0.0.0.0/0 [120/2] via 10.0.3.2, 00:00:18, FastEthernet1/1

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