cisco vlan 无法连通

heibai

Switch>en
Switch#show run
Building configuration...

Current configuration : 1218 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
interface FastEthernet0/1
switchport access vlan 10
!
interface FastEthernet0/2
switchport access vlan 10
!
interface FastEthernet0/3
switchport access vlan 10
!
interface FastEthernet0/4
switchport access vlan 11
!
interface FastEthernet0/5
switchport access vlan 11
!
interface FastEthernet0/6
switchport access vlan 11
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13

interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
interface GigabitEthernet1/1
switchport mode trunk
!
interface GigabitEthernet1/2
!
interface Vlan1
no ip address
shutdown
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
end

路由器
Router>en
Router#show run
Building configuration...

Current configuration : 583 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router
!
!
!
!
!
!
!
!
!
!
ip name-server 0.0.0.0
!
--More--

!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.1
encapsulation dot1Q 2
ip address 192.168.2.254 255.255.255.0
!
interface FastEthernet0/0.2
encapsulation dot1Q 3
ip address 192.168.3.254 255.255.255.0
!
router rip
network 192.168.2.0
network 192.168.3.0
!
ip classless
!
!
!
!
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
!
end

现在的问题

下边的pc在同vlan间可以ping通
ping不通路由器的ip
也无法ping通另外一个vlan区域的pc

heibai

发现问题了

已解决
interface FastEthernet0/0.1
encapsulation dot1Q 2
ip address 192.168.2.254 255.255.255.0
!
interface FastEthernet0/0.2
encapsulation dot1Q 3
ip address 192.168.3.254 255.255.255.0
!
这里不对，哈哈
encapsulation dot1Q
改了就好了

zhuixun0925

你改了这里是对的，只不过encapsulation dot1Q “VLAN ID” 如果不加上vlan ID的话，是不是所有vlan之间都可以相互通讯？那么你划分vlan还有什么意义呢？

interface FastEthernet0/0.1
encapsulation dot1Q 10
ip address 192.168.2.254 255.255.255.0
!
interface FastEthernet0/0.2
encapsulation dot1Q 11
ip address 192.168.3.254 255.255.255.0

这样才对吧

chenyx

应该是3楼那样的,你下层交换机没有vlan2和3啊

aplah

啊

myfat10

晕死。。。

子接口下应该是用 encapsulation dot1q vlan-id 的。。。

闻烟儿去吧

回复 1# heibai


    楼主这网络结构看不懂。核心交换是二层的，上行到路由器来给不同vlan路由。2960的g0/1好像是上行口，那路由器的f0/3那么配置干什么用的啊？另外2611路由器全是百兆口，你等于浪费了2960的千兆口。从你的vlan数量看，我觉得还不如路由器2、3口各接一个二层交换机，也不用配trunk了。