配置PC1：IP地址192.168.1.1 掩码255.255.255.0 网关192.168.1.254，上路由配置网关
H3C-R1:
sys
sysname H3C-R1
interface gi0/0
ip address 192.168.1.254 24
qu
interface gi0/1
ip address 192.168.100.254 24
qu
interface gi0/0
dhcp select relay
dhcp relay server-addresss 192.168.100.10
dhcp enable
DHCPServer:
sys
sysname DHCPServer
interface gi0/0
ip address 192.168.100.10 24
qu
ip route-static 0.0.0.0 0.0.0.0 192.168.100.254
dhcp enable
dhcp serverip-pool 1
network 192.168.1.0 mask 255.255.255.0
gateway-list 192.168.1.254
启用DHCP，自动获取ip地址
主机1ping192.168.1.254和192.168.100.254
主机2ping192.168.100.10
