R1)
conf t
int s1/0
ip add 192.168.12.1 255.255.255.0
no sh
int f0/0
ip add 172.16.1.254 255.255.255.0
no sh
int lo 2
ip add 172.16.2.254 255.255.255.0
int lo 3
ip add 172.16.3.254 255.255.255.0
int lo 4
ip add 172.16.4.254 255.255.255.0
int lo 5
ip add 172.16.5.254 255.255.255.0
int lo 6
ip add 172.16.6.254 255.255.255.0
int lo 7
ip add 172.16.7.254 255.255.255.0
router eigrp 100
network 172.16.1.0 0.0.0.255
network 172.16.2.0 0.0.0.255
network 172.16.3.0 0.0.0.255
network 172.16.4.0 0.0.0.255
network 172.16.5.0 0.0.0.255
network 172.16.6.0 0.0.0.255
network 172.16.7.0 0.0.0.255
network 192.168.12.0 0.0.0.255
no auto-summary
end
wr
R2)
conf t
int s1/0
ip add 192.168.12.2 255.255.255.0
no sh
int s1/1
ip add 192.168.23.2 255.255.255.0
no sh
int f0/0
ip add 10.1.2.254 255.255.255.0
no sh
router eigrp 100
network 10.1.2.0 0.0.0.255
network 192.168.12.0 0.0.0.255
network 192.168.23.0 0.0.0.255
no auto-summary
end
wr
R3)
conf t
int s1/1
ip add 192.168.23.3 255.255.255.0
no sh
int f0/0
ip add 172.16.8.254 255.255.255.0
no sh
int lo 9
ip add 172.16.9.254 255.255.255.0
int lo 10
ip add 172.16.10.254 255.255.255.0
int lo 11
ip add 172.16.11.254 255.255.255.0
int lo 12
ip add 172.16.12.254 255.255.255.0
int lo 13
ip add 172.16.13.254 255.255.255.0
int lo 14
ip add 172.16.14.254 255.255.255.0
int lo 15
ip add 172.16.15.254 255.255.255.0
router eigrp 100
network 172.16.8.0 0.0.0.255
network 172.16.9.0 0.0.0.255
network 172.16.10.0 0.0.0.255
network 172.16.11.0 0.0.0.255
network 172.16.12.0 0.0.0.255
network 172.16.13.0 0.0.0.255
network 172.16.14.0 0.0.0.255
network 172.16.15.0 0.0.0.255
network 192.168.23.0 0.0.0.255
no auto-summary
end
wr
다음과 같이 실행하면 통신은 정상적으로 되지만,
입력해야 할 정보가 너무 많아 실수할 확률이 높고
show ip route로 라우팅 정보를 볼 때 많은 정보가 출력되어
원하는 정보를 찾기가 어렵습니다.
R2의 라우팅 정보)
그래서 다음과같이 슈퍼넷팅을 활용하여 정보를 축약할 수 있습니다.
R1) 추가입력
conf t
router eigrp 100
no network 172.16.1.0 0.0.0.255
no network 172.16.2.0 0.0.0.255
no network 172.16.3.0 0.0.0.255
no network 172.16.4.0 0.0.0.255
no network 172.16.5.0 0.0.0.255
no network 172.16.6.0 0.0.0.255
no network 172.16.7.0 0.0.0.255
# 처음부터 입력한다면 no network는 생략될 것입니다.
network 172.16.0.0 0.0.7.255
int s1/0
ip summary-address eigrp 100 172.16.0.0 255.255.248.0
end
wr
R3) 추가입력
conf t
router eigrp 100
no network 172.16.8.0 0.0.0.255
no network 172.16.9.0 0.0.0.255
no network 172.16.10.0 0.0.0.255
no network 172.16.11.0 0.0.0.255
no network 172.16.12.0 0.0.0.255
no network 172.16.13.0 0.0.0.255
no network 172.16.14.0 0.0.0.255
no network 172.16.15.0 0.0.0.255
network 172.16.8.0 0.0.7.255
int s1/0
ip summary-address eigrp 100 172.16.8.0 255.255.248.0
end
wr
이제 R2의 라우팅 정보가 이와 같이 축약되서 표시됩니다.
