PC0
IP地址：192.168.1.2/24
网关：192.168.1.1
接口：Fast Ethernet 0/2
PC1
IP地址：192.168.2.2/24
网关：192.168.2.1
接口：Fast Ethernet 0/3
二层接入交换机2960
建立VLAN2和VLAN3，并把Fast Ethernet 0/1设置为Trunk口。
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int fa0/2
Switch(config-if)#swi
Switch(config-if)#switchport a
Switch(config-if)#switchport access vlan 2
% Access VLAN does not exist. Creating vlan 2
Switch(config-if)#int fa0/3
Switch(config-if)#sw
Switch(config-if)#switchport a
Switch(config-if)#switchport access vlan 3
% Access VLAN does not exist. Creating vlan 3
Switch(config-if)#int fa0/1
Switch(config-if)#sw
Switch(config-if)#switchport mod
Switch(config-if)#switchport mode t
Switch(config-if)#switchport mode trunk
Switch(config-if)#exit
Switch(config)#
路由器2811
划分子端口fa0/0.1和fa0/0.2，配置IP地址，并在子端口封装802.1Q，在数据包在干线上传输之前打标签。
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa0/0.1
Router(config-subif)#en
Router(config-subif)#encapsulation do
Router(config-subif)#encapsulation dot1Q 2
Router(config-subif)#ip addr 192.168.1.1 255.255.255.0
Router(config-subif)#int fa0/0.2
Router(config-subif)#encapsulation dot1Q 3
Router(config-subif)#ip addr 192.168.2.1 255.255.255.0
Router(config-subif)#exit
Router(config)#int fa0/0
Router(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
%LINK-5-CHANGED: Interface FastEthernet0/0.1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.1, changed state to up
%LINK-5-CHANGED: Interface FastEthernet0/0.2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.2, changed state to up
Router(config-if)#^Z
Router#
%SYS-5-CONFIG_I: Configured from console by console
Router#sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.1.0/24 is directly connected, FastEthernet0/0.1
C 192.168.2.0/24 is directly connected, FastEthernet0/0.2
Router#
在路由器配置的{zh1}，使用命令sh ip route可以查看到已经有两条直连路由。
PING通了！
