简单三层网络配置
拓扑图
R1（ISP）配置：
Router#sh run Building configuration... Current configuration : 702 bytes ! version 15.1 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! ip cef no ipv6 cef ! ! ! ! license udi pid CISCO2911/K9 sn FTX15247M9Z ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface GigabitEthernet0/0 ip address 1.85.15.45 255.255.255.248 duplex auto speed auto ! interface GigabitEthernet0/1 no ip address duplex auto speed auto shutdown ! interface GigabitEthernet0/2 no ip address duplex auto speed auto shutdown ! interface Vlan1 no ip address shutdown ! ip classless ! ip flow-export version 9 ! ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end Router#
R0配置：
Router#sh run Building configuration... Current configuration : 926 bytes ! version 15.1 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! ip cef no ipv6 cef ! ! ! ! license udi pid CISCO2911/K9 sn FTX152474AG ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface GigabitEthernet0/0 ip address 192.168.100.1 255.255.255.0 ip nat inside duplex auto speed auto ! interface GigabitEthernet0/1 ip address 1.85.15.46 255.255.255.248 ip nat outside duplex auto speed auto ! interface GigabitEthernet0/2 no ip address duplex auto speed auto shutdown ! interface Vlan1 no ip address shutdown ! ip nat inside source list 10 interface GigabitEthernet0/1 overload ip classless ip route 0.0.0.0 0.0.0.0 1.85.15.45 ip route 192.168.0.0 255.255.0.0 192.168.100.2 ! ip flow-export version 9 ! ! access-list 10 permit any ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end Router#
SW配置：
Switch#sh run Building configuration... Current configuration : 1754 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Switch ! ! ! ! ! ip dhcp pool 101 network 192.168.101.0 255.255.255.0 default-router 192.168.101.1 dns-server 114.114.114.114 ip dhcp pool 102 network 192.168.102.0 255.255.255.0 default-router 192.168.102.1 dns-server 114.114.114.114 ! ! ip routing ! ! ! ! ! ! ! ! ! ! ! ! ! ! spanning-tree mode pvst ! ! ! ! ! ! interface FastEthernet0/1 switchport access vlan 100 ! interface FastEthernet0/2 switchport access vlan 101 ! interface FastEthernet0/3 switchport access vlan 102 ! interface FastEthernet0/4 switchport access vlan 102 ! interface FastEthernet0/5 ! interface FastEthernet0/6 ! interface FastEthernet0/7 ! interface FastEthernet0/8 ! interface FastEthernet0/9 ! interface FastEthernet0/10 ! interface FastEthernet0/11 ! interface FastEthernet0/12 ! interface FastEthernet0/13 ! interface FastEthernet0/14 ! interface FastEthernet0/15 ! interface FastEthernet0/16 ! interface FastEthernet0/17 ! interface FastEthernet0/18 ! interface FastEthernet0/19 ! interface FastEthernet0/20 ! interface FastEthernet0/21 ! interface FastEthernet0/22 ! interface FastEthernet0/23 ! interface FastEthernet0/24 ! interface GigabitEthernet0/1 ! interface GigabitEthernet0/2 ! interface Vlan1 no ip address shutdown ! interface Vlan100 ip address 192.168.100.2 255.255.255.0 ! interface Vlan101 ip address 192.168.101.1 255.255.255.0 ! interface Vlan102 ip address 192.168.102.1 255.255.255.0 ! interface Vlan103 ip address 192.168.103.1 255.255.255.0 ! ip classless ip route 0.0.0.0 0.0.0.0 192.168.100.1 ! ip flow-export version 9 ! ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end Switch#
浙公网安备 33010602011771号