先是在主机1配置ip地址192.168.30.1 主机2的ip地址192.168.40.1。之后再交换机上创建vlan30和40，让主机1在vlan 30，主机2在vlan40。之后进入接口30和40，配置ip地址和掩码，之后在主机上配置网关
交换机代码：
system
vlan 30
vlan 40
interface Ethernet 1/0/1
port link-type access
port access vlan 30
interface Ethernet 1/0/1
port link-type access
port access vlan 40
interface vlan-interface 30
ip address 192.168.30.254 24
interface vlan-interface 40
ip address 192.168.40.254 24