１：两台3750作为核心交换，堆叠． ２：网络划分为7个VLAN，其中分为默认区(192.168.88.x)，服务器网段(192.168.42.x)，办公区(192.168.40.x 192.168.43.x)，制造区(192.168.41.x)，无线区(192.168.44.x)和其它区(192.168.46.x)． ３：各个网段中客户端的IP通过服务器DHCP分配． ４：服务器段里的服务器接入3750以实1G的接入速度． ５：办公区中电脑以前安装有多台打印服务器，网段为42.x，为了简化客户端操作，需在楼间层CE500上设置其它的桌面交换机分属不同的网段． ６：各个办公区的电脑通过域服务器的用户名验证经Watch Guard防火墙控制其上网权限，因为有外厂客户访问，所以设置无线区实现无限制的外网连接．但是由交换机控制其不能进行内网访问．
网络结构图
Ce500 设置图
DHCP
no service padservice timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 3750stack
!
enable password cisc0
!
no aaa new-model
switch 1 provision ws-c3750g-24ts
switch 2 provision ws-c3750g-24ts
vtp mode transparent
ip subnet-zero
ip routing
ip dhcp relay information trust-all
!
!
!
!
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
vlan 2
name server
!
vlan 3
name mfga
!
vlan 4
name mfgb
!
vlan 5
name office
!
vlan 6
name internet
!
vlan 7
name wireless
!
interface GigabitEthernet1/0/1
description B Zone connect to 3com number 1
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/2
description B Zone connect to 3com number 2
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/3
description B Zone connect to 3com number 3
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/4
description B Zone connect to 3com number 4
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/5
description B Zone connect to 3com number 5
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/6
description B Zone connect to 3com number 6
switchport access vlan 4
spanning-tree portfast
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
description connect to CE500 Vlan for test
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/14
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/15
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/16
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/17
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/18
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/19
description C Zone connect to server
switchport access vlan 2
spanning-tree portfast
!
interface GigabitEthernet1/0/20
description C Zone connect to server
switchport access vlan 2
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