1.与NPE-20连接的三层交换口FA0/3 (no switchport ,然后设置和NPE-20直连接口相同子网:如:172.16.0.2)
2.三层交换到三个网段写静态路由:
ip route 173.16.0.0 255.255.0.0 172.16.0.1
ip route 192.168.100.0 255.255.255.252 172.16.0.1
ip route 192.168.1.0 255.255.255.0 172.16.0.1
3.NPE-20写静态路由:
ip route 192.168.1.0 255.255.255.0 192.168.100.2
ip route 173.16.1.0 255.255.255.0 192.168.100.2
ip route 172.16.0.0 255.255.0.0 172.16.0.2
4.R2到各个网段的静态路由:
ip route 173.16.1.0 255.255.255.0 192.168.1.2
ip route 173.16.0.0 255.255.0.0 192.168.1.2
ip route 172.16.0.0 255.255.0.0 192.168.100.1
5.R3到各个网段的静态路由:
ip route 172.16.0.0 255.255.0.0 192.168.1.1
ip route 192.168.100.0 255.255.255.252 192.168.1.1