Lab 7. EIGRP - Summary Address

R1#

interface Loopback0

ip address 1.1.1.1 255.255.255.255

!

interface Loopback1

ip address 100.100.100.1 255.255.255.255

!

interface Loopback2

ip address 200.200.200.1 255.255.255.255

!

interface Loopback3

ip address 30.30.30.1 255.255.255.255

!

interface Serial0/0

ip address 12.12.12.1 255.255.255.0

!

router eigrp 10

network 1.1.1.1 0.0.0.0

network 12.12.12.1 0.0.0.0

no auto-summary

!

router ospf 1

log-adjacency-changes

network 30.30.30.1 0.0.0.0 area 0

!

router rip

version 2

network 200.200.200.0

R2#

interface Loopback0

ip address 2.2.2.2 255.255.255.255

!

interface FastEthernet0/0

ip address 23.23.23.2 255.255.255.0

!

interface Serial0/0

ip address 12.12.12.2 255.255.255.0

!

router eigrp 10

network 2.2.2.2 0.0.0.0

network 12.12.12.2 0.0.0.0

network 23.23.23.2 0.0.0.0

no auto-summary

R3#

interface Loopback0

ip address 3.3.3.3 255.255.255.255

!

interface Loopback1

ip address 10.0.0.1 255.255.255.255

!

interface Loopback2

ip address 10.0.0.2 255.255.255.255

!

interface Loopback3

ip address 10.0.0.3 255.255.255.255

!

interface Loopback4

ip address 10.0.0.4 255.255.255.255

!

interface Loopback5

ip address 10.0.0.5 255.255.255.255

!

interface Loopback6

ip address 10.0.0.6 255.255.255.255

!

interface Loopback7

ip address 10.0.0.7 255.255.255.255

!

interface FastEthernet0/0

ip address 23.23.23.3 255.255.255.0

!

router eigrp 10

network 3.3.3.3 0.0.0.0

network 10.0.0.1 0.0.0.0

network 10.0.0.2 0.0.0.0

network 10.0.0.3 0.0.0.0

network 10.0.0.4 0.0.0.0

network 10.0.0.5 0.0.0.0

network 10.0.0.6 0.0.0.0

network 10.0.0.7 0.0.0.0

network 23.23.23.3 0.0.0.0

no auto-summary

Then in R3, we can do summarization to decrease routing database

R3(config-if)#do sh ip route conne

  3.0.0.0/32 is subnetted, 1 subnets

C    3.3.3.3 is directly connected, Loopback0

  23.0.0.0/24 is subnetted, 1 subnets

C    23.23.23.0 is directly connected, FastEthernet0/0

  10.0.0.0/32 is subnetted, 7 subnets

C    10.0.0.2 is directly connected, Loopback2

C    10.0.0.3 is directly connected, Loopback3

C    10.0.0.1 is directly connected, Loopback1

C    10.0.0.6 is directly connected, Loopback6

C    10.0.0.7 is directly connected, Loopback7

C    10.0.0.4 is directly connected, Loopback4

C    10.0.0.5 is directly connected, Loopback5

R1(config-if)#do sh ip rou

Codes: 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

Gateway of last resort is not set

  200.200.200.0/32 is subnetted, 1 subnets

C    200.200.200.1 is directly connected, Loopback2

  1.0.0.0/32 is subnetted, 1 subnets

C    1.1.1.1 is directly connected, Loopback0

  100.0.0.0/32 is subnetted, 1 subnets

C    100.100.100.1 is directly connected, Loopback1

  3.0.0.0/32 is subnetted, 1 subnets

D    3.3.3.3 [90/2323456] via 12.12.12.2, 00:06:21, Serial0/0

  23.0.0.0/24 is subnetted, 1 subnets

D    23.23.23.0 [90/2195456] via 12.12.12.2, 00:06:21, Serial0/0

  10.0.0.0/32 is subnetted, 7 subnets

D    10.0.0.2 [90/2323456] via 12.12.12.2, 00:06:23, Serial0/0

D    10.0.0.3 [90/2323456] via 12.12.12.2, 00:06:23, Serial0/0

D    10.0.0.1 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0

D    10.0.0.6 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0

D    10.0.0.7 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0

D    10.0.0.4 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0

D    10.0.0.5 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0

  12.0.0.0/24 is subnetted, 1 subnets

C    12.12.12.0 is directly connected, Serial0/0

  30.0.0.0/32 is subnetted, 1 subnets

C    30.30.30.1 is directly connected, Loopback3

We can make summary address in EIGRP.

R3(config-router)#int f0/0

R3(config-if)#ip summary-address eigrp 10 10.0.0.0 255.255.255.248

Check routing in R1 that advertize in EIGRP

R1(config-if)#do sh ip rou

Codes: 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

Gateway of last resort is not set

  200.200.200.0/32 is subnetted, 1 subnets

C    200.200.200.1 is directly connected, Loopback2

  1.0.0.0/32 is subnetted, 1 subnets

C    1.1.1.1 is directly connected, Loopback0

  100.0.0.0/32 is subnetted, 1 subnets

C    100.100.100.1 is directly connected, Loopback1

  3.0.0.0/32 is subnetted, 1 subnets

D    3.3.3.3 [90/2323456] via 12.12.12.2, 00:08:40, Serial0/0

  23.0.0.0/24 is subnetted, 1 subnets

D    23.23.23.0 [90/2195456] via 12.12.12.2, 00:08:40, Serial0/0

  10.0.0.0/29 is subnetted, 1 subnets

D    10.0.0.0 [90/2323456] via 12.12.12.2, 00:00:49, Serial0/0

  12.0.0.0/24 is subnetted, 1 subnets

C    12.12.12.0 is directly connected, Serial0/0

  30.0.0.0/32 is subnetted, 1 subnets

C    30.30.30.1 is directly connected, Loopback3

R1(config-if)#do ping 10.0.0.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/40/76 ms

R1(config-if)#do ping 10.0.0.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/44/68 ms

R1(config-if)#do ping 10.0.0.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.0.0.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 32/46/80 ms