把CCNA大实验用ENSP做的时候，出现RIP的问题，求大神指导。

小小飞哥

                               
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R1配置：
#
interface Serial4/0/0
link-protocol ppp
ip address 10.1.1.1 255.255.255.0
#
interface Serial4/0/1
link-protocol ppp
#
interface GigabitEthernet0/0/0
ip address 172.16.1.1 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 10.10.10.11 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/2.10
dot1q termination vid 10
ip address 192.168.1.254 255.255.255.0
#
interface NULL0
#
rip 1
version 2
network 172.16.0.0
network 10.0.0.0
network 192.168.1.0
#



R2配置：
interface Serial4/0/0
link-protocol ppp
ip address 10.1.1.2 255.255.255.0
#
interface Serial4/0/1
link-protocol ppp
#
interface GigabitEthernet0/0/0
ip address 10.2.2.2 255.255.255.0
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
rip 1
version 2
network 10.0.0.0



R3配置：
#
interface GigabitEthernet0/0/0
ip address 10.2.2.3 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 172.16.2.3 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/2.20
dot1q termination vid 20
ip address 192.168.2.254 255.255.255.0
#
interface NULL0
#
rip 1
version 2
network 10.0.0.0
network 172.16.0.0
network 192.168.2.0
#






所有主机都拼不通其他路由，主机跟网关之间都能通；  R1-R2-R3-R4都能互拼通。


求助啊，这是什么问题，还是RIP没配置好。

小小飞哥

C:\Users\fei\Desktop\QQ截图20140515102503.png