HSRP
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R1的配置
Router> en
Router# config t
Router(config)# no ip routing (关闭路由功能)
Router(config)# ip default-gateway 192.168.1.1 (添加默认网关)
Router(config)# int e0/1
Router(config-if)# ip add 192.168.1.4 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full (开全双工)
Router(config-if)# end
Router#
R2的配置
Router> en
Router# config t
Router(config)# no ip routing (关闭路由功能)
Router(config)# ip default-gateway 192.168.1.1 (添加默认网关)
Router(config)# int e0/1
Router(config-if)# ip add 192.168.1.5 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full (开全双工)
Router(config-if)# end
Router#
R3的配置
1.添加e0/1接口IP
Router> en
Router# config t
Router(config)# int e0/1
Router(config-if)# ip add 192.168.1.2 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full
2.配置e0/1的standby 10
Router(config-if)# standby 10 ip 192.168.1.1
Router(config-if)# standby 10 priority 120
Router(config-if)# standby 10 preempt
Router(config-if)# standby 10 track e0/2 50
Router(config-if)#
3.添加e0/2接口IP
Router(config-if)# int e0/2
Router(config-if)# ip add 192.168.2.2 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full
4.配置e0/2的standby 20
Router(config-if)# standby 20 ip 192.168.2.1
Router(config-if)# standby 20 priority 110
Router(config-if)# standby 20 preempt
Router(config-if)# standby 20 track e0/1 50
Router(config-if)# end
Router#
R4的配置
1.添加e0/1接口IP
Router> en
Router# config t
Router(config)# int e0/1
Router(config-if)# ip add 192.168.1.3 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full
2.配置e0/1的standby 10
Router(config-if)# standby 10 ip 192.168.1.1
Router(config-if)# standby 10 priority 110
Router(config-if)# standby 10 preempt
Router(config-if)# standby 10 track e0/2 50
Router(config-if)#
3.添加e0/2接口IP
Router(config-if)# int e0/2
Router(config-if)# ip add 192.168.2.3 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full
4.配置e0/2的standby 20
Router(config-if)# standby 20 ip 192.168.2.1
Router(config-if)# standby 20 priority 120
Router(config-if)# standby 20 preempt
Router(config-if)# standby 20 track e0/1 50
Router(config-if)# end
Router#
R5的配置
Router> en
Router# config t
Router(config)# no ip routing (关闭路由功能)
Router(config)# ip default-gateway 192.168.2.1 (添加默认网关)
Router(config)# int e0/2
Router(config-if)# ip add 192.168.2.4 255.255.255.0
Router(config-if)# no shut
Router(config-if)# duplex full (开全双工)
Router(config-if)# end
Router#
S1的配置
Router> en
Router# config t
Router(config-if)# int range f0/1 - 4
Rotuer(config-if-range)# no shut
Router(config-if-range)# speed 10
Router(config-if-range)# duplex full
Router(config-if-range)# end
Router#
S2的配置
Router> en
Router# config t
Router(config-if)# int range f0/1 - 3
Rotuer(config-if-range)# no shut
Router(config-if-range)# speed 10
Router(config-if-range)# duplex full
Router(config-if-range)# end
Router#
验证:
1. 在R3、R4上使用show standby
Ethernet0/1 - Group 10
State is Active à活跃路由器
2 state changes, last state change 00:03:00
Virtual IP address is 192.168.1.1 à虚拟IP
Active virtual MAC address is 0000.0c 07.ac0a à虚拟MAC
Local virtual MAC address is 0000.0c 07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.632 secs
Preemption enabled à配置了抢占(占先权)
Active router is local
Standby router is 192.168.1.3, priority 110 (expires in 8.604 sec) à备份路由器的IP和优先级
Priority 120 (configured 120) à自已的优先级
Track interface Ethernet0/2 state Up decrement 50 à配置了端口跟踪(e0/2),优先级加减50
IP redundancy name is "hsrp-Et0/1-10" (default)
State is Standby à备份路由器
1 state change, last state change 00:07:31
Virtual IP address is 192.168.1.1 à虚拟IP
Active virtual MAC address is 0000.0c 07.ac0a à虚拟MAC
Local virtual MAC address is 0000.0c 07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.304 secs
Preemption enabled à配置了抢占(占先权)
Active router is 192.168.1.2, priority 120 (expires in 9.332 sec) à活跃路由器的IP和优先级
Standby router is local
Priority 110 (configured 110) à自已的优先级
Track interface Ethernet0/2 state Up decrement 50 à配置了端口跟踪(e0/2),优先级加减50
IP redundancy name is "hsrp-Et0/1-10" (default)
2.在R1或R2上使用扩展ping ,
Router#ping
Protocol [ip]:
Target IP address: 192.168.2.4 à目标地址
Repeat count [5]: 1000 àping包次数
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 192.168.2.4, timeout is 2 seconds:
!!!!!!!!!!!
然后把R3的e0/2接口shutdown,看是否还能ping通
(提示:应该有2到3个ping包不通,然后又通)
Interface Grp Prio P State Active Standby Virtual IP
Et0/1 1 150 P Active local 192.168.1.3 192.168.1.1
Et0/2 2 120 P Standby 192.168.2.3 local 192.168.2.1
接口名 组 优先级 状态 虚拟IP
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