실습목표
위의 토폴로지를 EIGRP 라우팅을 사용해 통신이 가능케 하라.
가상의 IP 172.16.0.1 에 대하여 GW1에서 Active, GW2에서 Standby 로 설정하라.
AS 번호 : 200
기본 설정
GW1 라우팅 설정
GW1(config)#int fa0/0
GW1(config-if)#ip add 172.16.0.2 255.255.255.0
GW1(config-if)#no sh
GW1(config-if)#int fa0/1
GW1(config-if)#ip add 172.1.0.1 255.255.255.248
GW1(config-if)#no sh
GW2 라우팅 설정
GW2(config)#int fa0/0
GW2(config-if)#ip add 172.16.0.3 255.255.255.0
GW2(config-if)#no sh
GW2(config-if)#int fa0/1
GW2(config-if)#ip add 172.1.0.2 255.255.255.248
GW2(config-if)#no sh
ROUTER 설정
Router(config)#int fa0/0
Router(config-if)#ip add 172.1.0.3 255.255.255.248
Router(config-if)#no sh
Router(config-if)#int fa0/1
Router(config-if)#ip add 172.2.0.1 255.255.255.0
Router(config-if)#no sh
라우팅 설정
GW1(config)#router eigrp 200
GW1(config-router)#network 172.16.0.0
GW1(config-router)#network 172.1.0.0
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.16.0.3 (FastEthernet0/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.2 (FastEthernet0/1) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.3 (FastEthernet0/1) is up: new adjacency
GW2(config)#router eigrp 200
GW2(config-router)#network 172.16.0.0
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.16.0.2 (FastEthernet0/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.1 (FastEthernet0/1) is up: new adjacency
GW2(config-router)#network 172.1.0.0
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.3 (FastEthernet0/1) is up: new adjacency
Router(config)#router eigrp 200
Router(config-router)#network 172.1.0.0
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.1 (FastEthernet0/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.1.0.2 (FastEthernet0/0) is up: new adjacency
Router(config-router)#network 172.2.0.0
인근한 네트워크 주소를 라우팅함.
HSRP 설정
GW1(config)#int fa0/0
GW1(config-if)#standby 200 ip 172.16.0.1
GW1(config-if)#standby 200 priority 105
GW1(config-if)#standby 200 preempt
%HSRP-6-STATECHANGE: FastEthernet0/0 Grp 200 state Speak -> Standby
%HSRP-6-STATECHANGE: FastEthernet0/0 Grp 200 state Standby -> Active
GW2(config)#int fa0/0
GW2(config-if)#standby 200 ip 172.16.0.1
GW2(config-if)#standby 200 preempt
%HSRP-6-STATECHANGE: FastEthernet0/0 Grp 200 state Speak -> Standby
int fa0/0 포트에 위치한 호스트들의 게이트웨이에 대한 가상 ip를 설정해주었고, GW1 라우터를 Active 로서의 역할을 하게 했다.
라우팅이 잘 되어 호스트간의 통신이 원활하니, HSRP 설정이 잘 되었는지 확인하기 위해
GW1 라우터의 Fa0/0포트를 Shutdown 시켜보았다.
%HSRP-6-STATECHANGE: FastEthernet0/0 Grp 200 state Standby -> Active
GW2(config-if)#
%DUAL-5-NBRCHANGE: IP-EIGRP 200: Neighbor 172.16.0.2 (FastEthernet0/0) is down: holding time expired
Standby 상태였던 GW2는 Active로 전환되었고,
GW1의 Fa0/0포트였던 172.16.0.2는 EIGRP 에서 다운되어 Neighbor에서 탈락했다.
GW2#show ip eigrp neighbors
IP-EIGRP neighbors for process 200
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.1.0.1 Fa0/1 14 00:36:19 40 1000 0 8
1 172.1.0.3 Fa0/1 13 00:35:58 40 1000 0 5
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