VRRP+MSTP实验问题

zkn753951

IOU1
!
! Last configuration change at 02:41:01 UTC Sun Jun 26 2016
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname IOU1
!
boot-start-marker
boot-end-marker
!
!
logging discriminator EXCESS severity drops 6 msg-body drops EXCESSCOLL
logging buffered 50000
logging console discriminator EXCESS
!
no aaa new-model
no ip icmp rate-limit unreachable
!
ip cef
!
!
no ip domain-lookup
no ipv6 cef
ipv6 multicast rpf use-bgp
!
spanning-tree mode mst
spanning-tree extend system-id
!
spanning-tree mst configuration
name cisco
revision 1
instance 1 vlan 10
instance 2 vlan 20
!
spanning-tree mst 1 priority 4096
spanning-tree mst 2 priority 8192
!
!
!
!
!
!
vlan internal allocation policy ascending
!
ip tcp synwait-time 5
!
!
!
!
interface Port-channel1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Ethernet0/0
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
channel-group 1 mode desirable
!
interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
channel-group 1 mode desirable
!
interface Ethernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
!
interface Ethernet0/3
duplex auto
!
interface Ethernet1/0
duplex auto
!
interface Ethernet1/1
duplex auto
!
interface Ethernet1/2
duplex auto
!
interface Ethernet1/3
duplex auto
!
interface Ethernet2/0
duplex auto
!
interface Ethernet2/1
duplex auto
!
interface Ethernet2/2
duplex auto
!
interface Ethernet2/3
duplex auto
!
interface Ethernet3/0
duplex auto
!
interface Ethernet3/1
duplex auto
!
interface Ethernet3/2
duplex auto
!
interface Ethernet3/3
duplex auto
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
ip address 192.168.10.251 255.255.255.0
vrrp 1 ip 192.168.10.1
vrrp 1 priority 200
!
interface Vlan20
ip address 192.168.20.251 255.255.255.0
vrrp 1 ip 192.168.20.1
!
!
!
no ip http server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
end


IOU2

!
! Last configuration change at 02:30:34 UTC Sun Jun 26 2016
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname IOU2
!
boot-start-marker
boot-end-marker
!
!
logging discriminator EXCESS severity drops 6 msg-body drops EXCESSCOLL
logging buffered 50000
logging console discriminator EXCESS
!
no aaa new-model
no ip icmp rate-limit unreachable
!
ip cef
!
!
no ip domain-lookup
no ipv6 cef
ipv6 multicast rpf use-bgp
!
spanning-tree mode mst
spanning-tree extend system-id
!
spanning-tree mst configuration
name cisco
revision 1
instance 1 vlan 10
instance 2 vlan 20
!
spanning-tree mst 1 priority 8192
spanning-tree mst 2 priority 4096
!
!
!
!
!
!
vlan internal allocation policy ascending
!
ip tcp synwait-time 5
!
!
!
!
interface Port-channel1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Ethernet0/0
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
channel-group 1 mode desirable
!
interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
channel-group 1 mode desirable
!
interface Ethernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
!
interface Ethernet0/3
duplex auto
!
interface Ethernet1/0
duplex auto
!
interface Ethernet1/1
duplex auto
!
interface Ethernet1/2
duplex auto
!
interface Ethernet1/3
duplex auto
!
interface Ethernet2/0
duplex auto
!
interface Ethernet2/1
duplex auto
!
interface Ethernet2/2
duplex auto
!
interface Ethernet2/3
duplex auto
!
interface Ethernet3/0
duplex auto
!
interface Ethernet3/1
duplex auto
!
interface Ethernet3/2
duplex auto
!
interface Ethernet3/3
duplex auto
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
ip address 192.168.10.252 255.255.255.0
vrrp 1 ip 192.168.10.1
!
interface Vlan20
ip address 192.168.20.252 255.255.255.0
vrrp 1 ip 192.168.20.1
vrrp 1 priority 200
!
!
!
no ip http server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
end



IOU3

!
! Last configuration change at 02:41:57 UTC Sun Jun 26 2016
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname IOU3
!
boot-start-marker
boot-end-marker
!
!
logging discriminator EXCESS severity drops 6 msg-body drops EXCESSCOLL
logging buffered 50000
logging console discriminator EXCESS
!
no aaa new-model
no ip icmp rate-limit unreachable
!
ip cef
!
!
no ip domain-lookup
no ipv6 cef
ipv6 multicast rpf use-bgp
!
spanning-tree mode mst
spanning-tree extend system-id
!
spanning-tree mst configuration
name cisco
revision 1
instance 1 vlan 10
instance 2 vlan 20
!
!
!
!
!
!
!
vlan internal allocation policy ascending
!
ip tcp synwait-time 5
!
!
!
!
interface Ethernet0/0
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
!
interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
duplex auto
!
interface Ethernet0/2
switchport access vlan 10
duplex auto
!
interface Ethernet0/3
switchport access vlan 20
duplex auto
!
interface Ethernet1/0
duplex auto
!
interface Ethernet1/1
duplex auto
!
interface Ethernet1/2
duplex auto
!
interface Ethernet1/3
duplex auto
!
interface Ethernet2/0
duplex auto
!
interface Ethernet2/1
duplex auto
!
interface Ethernet2/2
duplex auto
!
interface Ethernet2/3
duplex auto
!
interface Ethernet3/0
duplex auto
!
interface Ethernet3/1
duplex auto
!
interface Ethernet3/2
duplex auto
!
interface Ethernet3/3
duplex auto
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
no ip address
!
interface Vlan20
no ip address
!
!
!
no ip http server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
end


PC1 ip：192.168.10.10/24 192.168.10.1
为什么PC1ping不通网关？

seczip521

vbbbbbbbbbbbbbbbbb

zkn753951

VPCS1 ping 网关提示host (192.168.10.1) not reachable，IOU3也无法ping通网关，和上面两个IOU的VLANip地址