路由器的f0/0接口问题！

zhouqing392

如上图所示两个vlan的单臂路由，当我把路由器的f0/1 换成f0/0时，相同的配置为什么下面2个主机就ping 不通了？难道f0/0有特殊用途吗？

anubis_amon

交换机清下CAM表试试

aarmstrong

分享 "show run"

h19

贴一下配置

david99022

1.確定你f0/1換成f0/0時，設定都是一樣的>>>show run
2.確定你的路由，有可能你有指定靜態路由到f0/1@@>>>show ip route

lulang35

不把配置发出来，凭空想是解决不了问题的

zhouqing392

R1#show run
Building configuration...

Current configuration : 1948 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R1
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.10
encapsulation dot1Q 10
no ip address
!
interface FastEthernet0/0.20
encapsulation dot1Q 20
no ip address
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1.10
encapsulation dot1Q 10
ip address 192.168.10.1 255.255.255.0
!
interface FastEthernet0/1.20
encapsulation dot1Q 20
ip address 192.168.20.1 255.255.255.0
!
interface Serial0/0/0
no ip address
shutdown
!
interface Serial0/0/1
no ip address
shutdown
!
interface Serial0/1/0
no ip address
shutdown
!
interface Serial0/1/1
no ip address
shutdown
!
interface FastEthernet1/0
switchport mode access
shutdown
!
interface FastEthernet1/1
switchport mode access
shutdown
!
interface FastEthernet1/2
switchport mode access
shutdown
!
interface FastEthernet1/3
switchport mode access
shutdown
!
interface FastEthernet1/4
switchport mode access
shutdown
!
interface FastEthernet1/5
switchport mode access
shutdown
!
interface FastEthernet1/6
switchport mode access
shutdown
!
interface FastEthernet1/7
switchport mode access
shutdown
!
interface FastEthernet1/8
switchport mode access
shutdown
!
interface FastEthernet1/9
switchport mode access
shutdown
!
interface FastEthernet1/10
switchport mode access
shutdown
!
interface FastEthernet1/11
switchport mode access
shutdown
!
interface FastEthernet1/12
switchport mode access
shutdown
!
interface FastEthernet1/13
switchport mode access
shutdown
!
interface FastEthernet1/14
switchport mode access
shutdown
!
interface FastEthernet1/15
switchport mode access
shutdown
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
!
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
!
end
这是R1上的show run，然后我把f0/1下的两个子接口ip删除，在f0/0上作同样的配置，
interface FastEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.10.1 255.255.255.0
!
interface FastEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.20.1 255.255.255.0
把交换机接到f0/0之后就不通了

yl601462922

不懂帮顶

zhouqing392

anubis_amon 发表于 2018-11-30 15:52
交换机清下CAM表试试

我清理了mac-address-table后还是不行，copy run start后reload，现在可以Ping通了
没有reload之前是这样的：
Switch#show mac-address-table
          Mac Address Table
-------------------------------------------

Vlan    Mac Address       Type        Ports
----    -----------       --------    -----

   1    00d0.ba34.d102    DYNAMIC     Fa0/1
  10    00d0.585d.6248    DYNAMIC     Fa0/2
  10    00d0.ba34.d102    DYNAMIC     Fa0/1
  20    00d0.ba34.d102    DYNAMIC     Fa0/1
reload之后ping通是这样的：
Switch#show mac-address-table
          Mac Address Table
-------------------------------------------

Vlan    Mac Address       Type        Ports
----    -----------       --------    -----

   1    00d0.ba34.d102    DYNAMIC     Fa0/1
  10    00d0.585d.6248    DYNAMIC     Fa0/2
  10    00d0.ba34.d102    DYNAMIC     Fa0/1
  20    0060.471b.07c8    DYNAMIC     Fa0/3
  20    00d0.ba34.d102    DYNAMIC     Fa0/1

Micklu

OCEANsea

需要你刷新一下MAC地址表，然后两台主机上清理一下arp缓存，试试