PC1:192.168.10.2 255.255.255.0 192.168.10.1 Fa0/1
PC2：192.168.20.2 255.255.255.0 192.168.20.1 Fa0/2
交换机1：f0/24
en
interface FastEthernet0/1
switch access vlan 10
interface FastEthernet0/2
switch access vlan 20
interface FastEthernet0/24
switchport mode trunk
interface Vlan1
