思科HSRP和VRRP双主双备

标签：思科   hsrp   vrrp   

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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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思科HSRP和VRRP双主双备

标签：思科   hsrp   vrrp   

原文地址：http://blog.51cto.com/denglu/2048861