拓扑图如下：
<?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
路由配置如下：
Router>en
Router#conf t
Router(config)#int fa0/0
Router(config-if)#ip add 192.168.37.154 255.255.255.0
Router(config-if)#ip nat outside
Router(config-if)#no sh

 

Router(config-if)#int fa0/1
Router(config-if)#ip add 192.168.2.1 255.255.255.0
Router(config-if)#ip nat inside
Router(config-if)#no sh

 

Router(config)#ip dhcp pool server           ……配置DHCP服务器
Router(dhcp-config)#dns-server 202.102.192.68
Router(dhcp-config)#default-router 192.168.2.1         …… 配置网关
Router(dhcp-config)#network 192.168.2.0 255.255.255.0       ……允许分配的IP范围
Router(dhcp-config)#ip nat pool www 192.168.37.154 192.168.37.154 netmask 255.255.255.0
Router(config)#access-list 1 permit 192.168.2.0 <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />0.0.0.255
Router(config)#ip nat inside source list 1 pool www overload
Router(config)#ip route 0.0.0.0 0.0.0.0 fa0/0

 

配置结果如下：
PC机自动或许IP 地址