思科HSRP和VRRP双主双备
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? ? ? ? ? ? ? ? ? ?思科HSRP和VRRP双主双备
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R1#conf t
R1(config)#int fa0/1
R1(config-if)#ip add 13.0.0.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#
*Mar ?1 00:02:10.087: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
*Mar ?1 00:02:11.095: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
R1(config)#ip ro
R1(config)#ip route 0.0.0.0 0.0.0.0 13.0.0.3
R1(config)#int fa0/0
R1(config-if)#ip add 192.168.10.10 255.255.255.0
R1(config-if)#no shut
R1(config-if)#standby 1 ip 192.168.10.1???配置一个虚拟的ip地址
R1(config-if)#standby 1 priority 120???????优先级
R1(config-if)#standby 1 preempt?????????抢占
R1(config-if)#standby 1 track fa0/1?????????跟踪上行口
R1(config-if)#
*Mar ?1 00:09:14.259: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/0 (not full duplex), ??????????????????????????????????????????????????????????
R1(config-if)#end
R1#show standby brief???????看HSRP状态
???????????????????P indicates configured to preempt.
???????????????????|
Interface Grp ?Pri P State ??Active ?????????Standby ????????Virtual IP
Fa0/0 ????1 ???120 P Active ?local ??????????unknown ????????192.168.10.1
R1#conf t
Enter configuration commands, one per line. ?End with CNTL/Z.
R1(config)#def
R1(config)#defa
R1(config)#default int
R1(config)#default interface fa0/0
R1(config-if)#no shut
R1(config-if)#int fa0/0.10
R1(config-subif)#encapsulation dot1Q 10
R1(config-subif)#ip add 192.168.10.01 255.255.255.0
R1(config-subif)#no shut ????????????????????????????????????????????????????????
R1(config-subif)#standby 1 ip 192.168.10.1
R1(config-subif)#standby 1 preempt
R1(config-subif)#standby 1 track
R1(config-subif)#standby 1 track fa0/1
R1(config-subif)#exit
R1(config)#end
R1#show standby brief
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R1(config)#int fa0/0.20
R1(config-subif)#en
R1(config-subif)#encapsulation d
R1(config-subif)#encapsulation dot1Q 20
R1(config-subif)#ip add 192.168.20.10 255.255.255.0
R1(config-subif)#no shut
R1(config-subif)#vrrp 1 ip 192.168.20.1
R1(config-subif)#vrrp 1 preempt?????抢占
R1(config-subif)# vrrp 1 priority ?95????低优先级
R1(config-subif)#vrrp 1 authentication md5 key-string??7 ?
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vrrp比hsrp更安全 ?????????Vrrp可以进行身份验证
R1#show vrrp brief
Interface ?????????Grp Pri Time ?Own Pre State ??Master addr ????Group addr
Fa0/0.20 ??????????1 ??95 ?3628 ??????Y ?Backup ?192.168.20.20 ??192.168.20.1
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R2#conf t
R2(config)#int fa0/1
R2(config-if)#ip add 23.0.0.2 255.255.255.0
R2(config-if)#no ?shut
R2(config-if)#exit
R2(config)#ip route 0.0.0.0 0.0.0.0 23.0.0.3
R2(config)#do p 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
.!!!!
R2(config)#int fa0/0
R2(config-if)#ip add 192.168.10.20 255.255.255.0
R2(config-if)#no shut
R2(config-if)#do p 192.168.10.10
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Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.10.10, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 20/27/32 ms
R2(config-if)#st
R2(config-if)#standby
R2(config-if)#standby 1 ip 192.168.10.1
R2(config-if)#standby 1 priority 115????????比上行口低
R2(config-if)#standby 1 preempt
不用跟踪上行口 已经是备用的
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R2(config-if)#end
R2#show standby brief??????看HSRP状态
???????????????????P indicates configured to preempt.
???????????????????|
Interface Grp ?Pri P State ??Active ?????????Standby ????????Virtual IP
Fa0/0 ????1 ???115 P Standby 192.168.10.10 ??local ??????????192.168.10.1
R2(config)#int fa0/0
R2(config-if)# default int fa0/0
R2(config)#int fa0/0
R2(config-if)#no shut
R2(config-if)#int fa0/0.10
R2(config-subif)#encapsulation dot1Q 10
R2(config-subif)#ip add 192.168.10.20 255.255.255.0
R2(config-subif)#no shut
R2(config-subif)#standby 1 ip 192.168.10.1
R2(config-subif)#standby 1 priority 95
R2(config-subif)#standby ?1 preempt
R2(config-subif)#standby 1 preempt
R2(config-subif)#do show stan b
???????????????????P indicates configured to preempt.
???????????????????|
Interface Grp ?Pri P State ??Active ?????????Standby ????????Virtual IP
Fa0/0.10 ?1 ???95 ?P Active ?local ??????????unknown ????????192.168.10.1
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R2(config-subif)#exit
R2(config)#end
R2#show ip int b
Interface ?????????????????IP-Address ?????OK? Method Status ???????????????Protocol
FastEthernet0/0 ???????????unassigned ?????YES TFTP ??up ???????????????????up
FastEthernet0/0.10 ????????192.168.10.20 ??YES manual up ???????????????????up
FastEthernet0/1 ???????????23.0.0.2 ???????YES manual up ???????????????????up
R2#conf t
R2(config)#int fa0/0.20
R2(config-subif)#encapsulation dot1Q 20
R2(config-subif)#ip add 192.168.20.20 255.255.255.0
R2(config-subif)#vrrp 1 ip 192.168.20.1
R2(config-subif)#vrrp 1 preempt???抢占
R2(config)#track 1 int fa0/1 line-protocol????建track对象
R2(config)#int fa0/0.20
R2(config-subif)#vrrp ?1 track 1
R2 vrrp已经配置完成
R2#show vrrp brief
Interface ?????????Grp Pri Time ?Own Pre State ??Master addr ????Group addr
Fa0/0.20 ??????????1 ??100 3609 ??????Y ?Master ?192.168.20.20 ??192.168.20.1
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R3(config)#int fa0/0
R3(config-if)#ip add 13.0.0.3 255.255.255.0
R3(config-if)#no shut
R3(config-if)#int fa0/1
R3(config-if)#ip add 23.0.0.3 255.255.255.0
R3(config-if)# no shut
R3(config-if)#exit
R3(config)#int loo 0
R3(config-if)#ip add 1.1.1.1 255.255.255.0?
R3(config-if)#ip route 192.168.10.0 255.255.255.0 13.0.0.1??????配制回城路由
R3(config)#ip route 192.168.10.0 255.255.255.0 23.0.0.2 10???????上面挂了走这个路由
R3(config)#end
R3#show ip route
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
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Gateway of last resort is not set
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?????1.0.0.0/24 is subnetted, 1 subnets
C ??????1.1.1.0 is directly connected, Loopback0
S ???192.168.10.0/24 [1/0] via 13.0.0.1
?????23.0.0.0/24 is subnetted, 1 subnets
C ??????23.0.0.0 is directly connected, FastEthernet0/1
?????13.0.0.0/24 is subnetted, 1 subnets
C ??????13.0.0.0 is directly connected, FastEthernet0/0
R3#conft
R3(config)#ip route 192.168.20.0 255.255.255.0 23.0.0.2??做路由
R3(config)#ip route 192.168.20.0 255.255.255.0 13.0.0.1 10???比1大就行
R3(config)#int fa0/1
R3(config-if)#shut
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R4(config)#
R4(config)#vlan 10
R4(config-vlan)#vlan 20
R4(config-vlan)#int ran fa1/10 -11
R4(config-if-range)#switchport mode trunk
R4(config-if-range)#exit
R4(config)#int fa1/1
R4(config-if)#switchport access vlan ?10
R4(config-if)#int fa1/2
R4(config-if)#switchport access vlan 20
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PC的配置
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验证：
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C1从那边走的
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C2从那边走的
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把R2和R3的fa0/1 ??shut ?
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看shut之后c2怎么走
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