CCNA題庫中的一道題,我想知道選項E為什么不對?
183.Which series of commands will configure router R1 for LAN-to-LAN communication with router R2?The enterprise network address is 192.1.1.0/24 and the routing protocol in use is RIP.(Choose three.)
A.R1(config)# interface ethernet 0
R1(config-if)# ip address 192.1.1.129 255.255.255.192
R1(config-if)# no shutdown
B.R1(config)# interface ethernet 0
R1(config-if)# ip address 192.1.1.97 255.255.255.192
R1(config-if)# no shutdown
C.R1(config)# interface serial 0
R1(config-if)# ip address 192.1.1.4 255.255.255.252
R1(config-if)# clock rate 56000
D.R1(config)# interface serial 0
R1(config-if)# ip address 192.1.1.6 255.255.255.252
R1(config-if)# no shutdown
E.R1(config)# router rip
R1(config-router)# network 192.1.1.4
R1(config-router)# network 192.1.1.128
F.R1(config)# router rip
R1(config-router)# version 2
R1(config-router)# network 192.1.1.0
Answer:ADF
rip v1不支持非類掩碼,那如果按照E的方法輸入會出現(xiàn)什么狀況呢?能給詳細說說不?我這塊知識有點糊涂