12. Network : Routing Protocol - EIGRP

1. EIGRP (Enhanced Interior Gateway Routing Protocol)

• IGP (Interior Gateway Protocol)
• Cisco 전용 프로토콜
• 데이터를 세 개의 테이블에 저장: 이웃 테이블(Neighbor Table), 토폴로지 테이블, 라우팅 테이블
• 인접 라우터와 Neighbor 관계 형성
• Neighbor 관계 성립한 라우터 간에 라우팅 업데이트 실시
• 토폴로지에 변화가 있는 경우에만 업데이트 즉시 실시

1.1. 설정 방법

config# router eigrp 10

(자동 축약기능 사용 X)
# no auto-summary

# network [주소] [와일드카드 마스크]

 

2. EIGRP 구성하기

2.1. EIGRP 구성

2.2. Router 설정

Seoul_R1

//기본 설정
en
conf t
hostname Seoul_R1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

//Ip 설정
int g0/0
ip add 200.200.200.254 255.255.255.0
no sh
int s0/0/0
ip add 1.0.0.1 255.255.255.252
clock rate 4000000
no sh
exit

//eigrp 설정
router eigrp 10
no auto-summary
network 1.0.0.0 0.0.0.3
network 200.200.200.0 0.0.0.255
pa g0/0
do wr

 

Daejeon_R1

//기본 설정
en
conf t
hostname Daejeon_R1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

//IP 설정
int g0/0
ip add 200.200.201.254 255.255.255.0
no sh
int s0/0/0
ip add 1.0.0.2 255.255.255.252
no sh
int s0/0/1
ip add 1.0.0.5 255.255.255.252
clo ra 4000000
no sh
exit

//eigrp 설정
router eigrp 10
no auto-summary
network 1.0.0.0 0.0.0.3
network 1.0.0.4 0.0.0.3
network 200.200.201.0 0.0.0.255
pa g0/0
do wr

 

Busan_R1

//기본 설정
en
conf t
hostname Busan_R1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

//IP 설정
int g0/0
ip add 200.200.202.254 255.255.255.0
no sh
int s0/0/0
ip add 1.0.0.6 255.255.255.252
no sh
exit

//eigrp 설정
router eigrp 10
no auto-summary
network 1.0.0.4 0.0.0.3
network 200.200.202.0 0.0.0.255
pa g0/0
do wr

 

2.3. Switch 설정

Seoul_S1

en
conf t
hostname Seoul_S1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass1 mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

int vl 1
ip add 200.200.200.253 255.255.255.0
no sh
exit
ip default-gateway 200.200.200.254
do wr

 

Daejeon_S1

en
conf t
hostname Seoul_S1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass1 mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

int vlan 1
ip add 200.200.201.253 255.255.255.0
no sh
exit
ip default-gateway 200.200.201.254
do wr

 

Busan_S1

en
conf t
hostname Seoul_S1
ena se mhan
no ip domain-l
ser pa
ip domain-name mhan.xyz
cry key generate rsa
2048
ip ssh ver 2
username root pri 15 pass1 mhan1
username root1 pass mhan2
line con 0
password con1
login
exec-t 0 0
loggin syn
exit
line vty 0 4
login local
transport input ssh
exit

int vlan 1
ip add 200.200.202.253 255.255.255.0
no sh
exit
ip default-gateway 200.200.202.254
do wr