loading
ip address 2.1.1.1 255.0.0.0
ip ospf enable area 0.0.0.1 !
interface Serial1
encapsulation ppp !
interface Serial2
flowcontrol normal
async mode dedicated
encapsulation ppp ! exit
router ospf enable ! end
路由器B配置如下
Quidway#SHOW RUN
Now create configuration...
Current configuration ! !
interface Ethernet0
ip address 10.2.1.1 255.255.0.0
ip ospf enable area 0.0.0.2 !
interface Serial0
encapsulation ppp
ip address 2.1.1.2 255.0.0.0
ip ospf enable area 0.0.0.2 !
interface Serial1
encapsulation ppp
!
interface Serial2
flowcontrol normal
async mode dedicated
encapsulation ppp ! exit
router ospf enable ! End
如下说法正确的是（ ）
A、两端广域网可以联通，但局域网不可以连通
B、两端广域网不可以连通，但局域网可以连通
C、广域网和局域网都可以连通
D、广域网和局域网都不能连通
50、路由器A的配置如下
Quidway#SHOW RUN
Now create configuration...
Current configuration ! !
interface Ethernet0
ip address 10.2.1.1 255.255.0.0 !
interface Serial0
encapsulation ppp
backup interface Serial 1
ip address 2.1.1.1 255.0.0.0 !
interface Serial1
encapsulation ppp
ip address 3.1.1.1 255.0.0.0
!
interface Serial2
flowcontrol normal
async mode dedicated
encapsulation ppp ! Exit
Router rip ! End
路由器B的配置如下
Quidway#SHOW RUN
Now create configuration...
Current configuration ! !