第一種方法 依靠三層設備的物理接口進行轉發
PC0:
IP: 192.168.2.2 子網掩碼: 255.255.255.0 默認網關: 192.168.2.1
PC1:
IP: 192.168.3.2 子網掩碼: 255.255.255.0 默認網關: 192.168.3.1
Router0:
Fa0/0: IP:192.168.3.1/24 Fa0/1: IP:192.168.2.1/24
Switch0:
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
2 vlan2 active Fa0/2, Fa0/4
3 vlan3 active Fa0/1, Fa0/3
Switch0:
> Switch0>en
> Switch0#conf t
> Switch0(config)#vlan 2
> Switch0(config-vlan)#name vlan2
> Switch0(config-vlan)#vlan 3
> Switch0(config-vlan)#name vlan3
> Switch0(config-vlan)#ex
>
> Switch0(config)#int range fa0/2, fa0/4
> Switch0(config-if-range)#switchport mode access
> Switch0(config-if-range)#switchport access vlan 2
> Switch0(config-if-range)#ex
>
> Switch0(config)#int range fa0/1, fa0/3
> Switch0(config-if-range)#switchport mode access
> Switch0(config-if-range)#switchport access vlan 3
> Switch0(config-if-range)#ex
>
Router0:
Router>en
Router#conf t
Router(config)#int fa0/0
Router(config-if)#ip add 192.168.3.1 255.255.255.0
Router(config-if)#no shut
Router(config-if)#ex
Router(config)#int fa0/1
Router(config-if)#ip add 192.168.2.1 255.255.255.0
Router(config-if)#no shut
Router(config-if)#ex
第二種方法 路由器單臂路由連接兩個vlan
PC2:
IP: 192.168.2.2 子網掩碼: 255.255.255.0 默認網關: 192.168.2.1
PC3:
IP: 192.168.3.2 子網掩碼: 255.255.255.0 默認網關: 192.168.3.1
Router1:
Fa0/0.10: IP:192.168.3.1/24 Fa0/0.20: IP:192.168.2.1/24
Switch1:
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
2 vlan2 active Fa0/1
3 vlan3 active Fa0/2
Switch1:
Switch1>en
Switch1#conf t
Switch1(config)#vlan 2
Switch1(config-vlan)#name vlan2
Switch1(config-vlan)#vlan 3
Switch1(config-vlan)#name vlan3
Switch1(config-vlan)#ex
Switch1(config)#int fa0/1
Switch1(config-if-range)#switchport mode access
Switch1(config-if-range)#switchport access vlan 2
Switch1(config-if-range)#ex
Switch1(config)#int fa0/2
Switch1(config-if-range)#switchport mode access
Switch1(config-if-range)#switchport access vlan 3
Switch1(config-if-range)#ex
Switch(config)#int fa0/3
Switch(config-if)#switchport mode trunk
Switch(config-if)#switchport trunk allowed vlan all
Switch(config-if)#end
Router(config)#int fa0/0
Router(config-if)#no shut (先激活端口)
Switch(config-if)#ex
Router(config)#int fa0/0.10
Router(config-subif)#encapsulation dot1Q 2 (最後的數字匹配相應的VLAN號)
Router(config-subif)#ip add 192.168.2.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#ex
Router(config)#int fa0/0.20
Router(config-subif)#encapsulation dot1Q 3
Router(config-subif)#ip add 192.168.3.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#ex
第三種方法 三層交換機連接兩個網絡(或者兩個vlan),有兩種實現方式(SVI OR 路由口)
PC4:
IP: 192.168.2.2 子網掩碼: 255.255.255.0 默認網關: 192.168.2.1
PC5:
IP: 192.168.3.2 子網掩碼: 255.255.255.0 默認網關: 192.168.3.1
Multilayer Switch0:
Fa0/1: IP:192.168.3.1/24 Fa0/2: IP:192.168.2.1/24
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
2 vlan2 active Fa0/1
3 vlan3 active Fa0/2
Multilayer Switch0::
Switch1>en
Switch1#conf t
Switch1(config)#vlan 2
Switch1(config-vlan)#name vlan2
Switch1(config-vlan)#vlan 3
Switch1(config-vlan)#name vlan3
Switch1(config-vlan)#ex
Switch1(config)#int fa0/1
Switch1(config-if-range)#switchport mode access
Switch1(config-if-range)#switchport access vlan 2
Switch1(config-if-range)#ex
Switch1(config)#int fa0/2
Switch1(config-if-range)#switchport mode access
Switch1(config-if-range)#switchport access vlan 3
Switch1(config-if-range)#ex
Switch(config-if)#int vlan 2
Switch(config-if)#
%LINK-5-CHANGED: Interface Vlan2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to up
Switch(config-if)#ip add 192.168.2.1 255.255.255.0
Switch(config-if)#no shut
Switch(config-if)#ex
Switch(config)#
Switch(config)#int vlan 3
Switch(config-if)#
%LINK-5-CHANGED: Interface Vlan3, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan3, changed state to up
Switch(config-if)#ip add 192.168.3.1 255.255.255.0
Switch(config-if)#no shut
Switch(config-if)#ex
Switch(config)#ip routing (開啓路由功能!!!!!!!!!!!!!)
歡迎指出不足或者錯誤的地方(<ゝω・)☆
參考鏈接
http://120.198.126.8:90/wlpz/Courseware/content/SCOs/zykc201106_5_2_5_1/zykc201106_5_2_5_1.html
https://www.jianshu.com/p/6c4a8253d339