DHCP:
PC端配置：配置主机1的IP地址，掩码以及网关以作为联通性检验。将主机2配置为DHCP。
路由器配置：
system-view
sysname r1
interface gi 0/0
ip address 192.168.1.254 24
quit
dhcp enable
dhcp serve ip-pool 1
network 192.168.1.0 mask 255.255255.0
gateway-list 192.168.1.254
quit
interface gi 0/0
dhcp select serve
quit
dhcp serve ip-pool 1
dns-list 8.8.8.8
expired day 1 hour 12
