我已经使用 CISCO Packet Tracer 创建了一个网络测试实验室。我已执行以下操作以使 DHCP 和 VLAN（使用 Trucking）正常工作：
- 配置的路由器接口（g0/0 + g0/0.10-0.50）
- 在路由器上配置 DHCP 设置
- 路由器上启用中继
- 在交换机上配置 VLAN
- 交换机上启用中继
下面我发布了路由器和交换机的>运行演示<。工作站可以获得 DHCP IP 地址，并且 VLAN 隔离正在运行。
工作站可以 ping 路由器，但无法 ping 单独 VLAN 网络上的其他工作站。
路由器配置
shanelab#show run
Building configuration...
Current configuration : 2184 bytes
!
version 15.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname shanelab
!
!
!
enable secret 5 $1$mERr$xqDCepYvK4SAD6V0cxKQ3.
!
!
ip dhcp excluded-address 192.168.10.1 192.168.10.10
ip dhcp excluded-address 192.168.20.1 192.168.20.10
ip dhcp excluded-address 192.168.30.1 192.168.30.10
ip dhcp excluded-address 192.168.40.1 192.168.40.10
ip dhcp excluded-address 192.168.50.1
ip dhcp excluded-address 192.168.60.1
ip dhcp excluded-address 192.168.50.1 192.168.50.10
ip dhcp excluded-address 192.168.60.1 192.168.60.10
!
ip dhcp pool ITC
network 192.168.10.0 255.255.255.0
default-router 192.165.10.1
ip dhcp pool Manuf
network 192.168.20.0 255.255.255.0
default-router 192.168.20.1
ip dhcp pool billing
network 192.168.30.0 255.255.255.0
default-router 192.168.30.1
ip dhcp pool sales
network 192.168.40.0 255.255.255.0
default-router 192.168.40.1
ip dhcp pool HR
network 192.168.50.0 255.255.255.0
default-router 192.168.50.1
ip dhcp pool Management
network 192.168.60.0 255.255.255.0
default-router 192.168.60.1
!
!
!
ip cef
no ipv6 cef
!
!
!
!
license udi pid CISCO1941/K9 sn FTX1524KDLE-
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.10.1 255.255.255.0
!
interface GigabitEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.20.1 255.255.255.0
!
interface GigabitEthernet0/0.30
encapsulation dot1Q 30
ip address 192.168.30.1 255.255.255.0
!
interface GigabitEthernet0/0.40
encapsulation dot1Q 40
ip address 192.168.40.1 255.255.255.0
!
interface GigabitEthernet0/0.50
encapsulation dot1Q 50
ip address 192.168.50.1 255.255.255.0
!
interface GigabitEthernet0/0.60
encapsulation dot1Q 60
ip address 192.168.60.1 255.255.255.0
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
ip classless
shanelab#
shanelab#
交换机配置
Switch#show run
Building configuration...
Current configuration : 1385 bytes
!
version 15.0
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface FastEthernet0/1
switchport access vlan 10
switchport mode access
!
interface FastEthernet0/2
switchport access vlan 20
switchport mode access
!
interface FastEthernet0/3
switchport access vlan 30
switchport mode access
!
interface FastEthernet0/4
switchport access vlan 40
switchport mode access
!
interface FastEthernet0/5
switchport access vlan 50
switchport mode access
!
interface FastEthernet0/6
switchport access vlan 60
!
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
switchport mode trunk
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
!
end
Switch#
答案1
我觉得你的配置没什么问题。你可以在 ping 时使用模拟模式来确定 ICMP 数据包发生了什么。