實驗內容：
R2配置RIP路由協議進程2；R3配置RIP路由協議進程2和進程3；R4配置路由協議RIP進程3.現使PC1可以訪問Pc2,且不能訪問PC3.
實驗拓撲：
實驗配置：
[R2]inter g0/0/0
[R2-GigabitEthernet0/0/0]ip add 1.1.1.1 24
[R2-GigabitEthernet0/0/1]ip add 2.2.2.1 24
[R2-GigabitEthernet0/0/1]rip 2
[R2-rip-2]ver 2
[R2-rip-2]netw 1.0.0.0
[R2-rip-2]netw 2.0.0.0
[R3]acl 2000
[R3-acl-basic-2000]rule deny source 5.5.5.0 0.0.0.255
[R3-acl-basic-2000]rule permit
[R3]inter g0/0/0
[R3-GigabitEthernet0/0/0]ip add 2.2.2.2 24
[R3-GigabitEthernet0/0/1]ip add 3.3.3.1 24
[R3-GigabitEthernet0/0/1]rip 2
[R3-rip-2]ver 2
[R3-rip-2]netw 2.0.0.0
[R3-rip-2]import-route rip 3
[R3-rip-2]filter-policy 2000 export
[R3-rip-2]rip 3
[R3-rip-3]ver 2
[R3-rip-3]netw 3.0.0.0
[R3-rip-3]import-route rip 2
[R4]inter g0/0/0
[R4-GigabitEthernet0/0/0]ip add 3.3.3.2 24
[R4-GigabitEthernet0/0/2]ip add 4.4.4.1 24
[R4-GigabitEthernet0/0/1]ip add 5.5.5.1 24
[R4-GigabitEthernet0/0/1]rip 3
[R4-rip-3]ver 2
[R4-rip-3]netw 3.0.0.0
[R4-rip-3]netw 4.0.0.0
[R4-rip-3]netw 5.0.0.0
實驗驗證：
用PC1 ping PC2 和PC3
蔡瑞---2017-12-31