题目

备配置补充完整：R1:interface Ethernet0/0/0ip address 10.0.13.1 255.255.255.0interface GigabitEthernet0/0/0ip address 10.0.12.1 255.255.255.0ospf 1area 0.0.0.0network 10.0.12.0 0.0.0.255network ____________R2:interface Ethernet0/0/0ip address 10.0.24.2 255.255.255.0interface GigabitEthernet0/0/0ip address 10.0.12.2 255.255.255.0ospf 1area 0.0.0.0network 10.0.12.0 0.0.0.255network ____________

备配置补充完整：

R1:
interface Ethernet0/0/0
ip address 10.0.13.1 255.255.255.0
interface GigabitEthernet0/0/0
ip address 10.0.12.1 255.255.255.0
ospf 1
area 0.0.0.0
network 10.0.12.0 0.0.0.255
network ____________

R2:
interface Ethernet0/0/0
ip address 10.0.24.2 255.255.255.0
interface GigabitEthernet0/0/0
ip address 10.0.12.2 255.255.255.0
ospf 1
area 0.0.0.0
network 10.0.12.0 0.0.0.255
network ____________

题目解答

答案

根据题目要求，需为R1和R2补充OSPF配置中缺失的network命令，确保所有接口所在网络均被宣告至OSPF区域0。

核心步骤如下：

  1. 识别各路由器未宣告的接口网络：

    • R1的Ethernet0/0/0接口IP为10.0.13.1/24 → 对应网络：$10.0.13.0/24$
    • R2的Ethernet0/0/0接口IP为10.0.24.2/24 → 对应网络：$10.0.24.0/24$

  2. 确定通配符掩码：

    • 子网掩码255.255.255.0对应的通配符掩码为0.0.0.255

  3. 补充配置：

    • R1需添加：network 10.0.13.0 0.0.0.255
    • R2需添加：network 10.0.24.0 0.0.0.255

最终完整配置如下：

R1:

interface Ethernet0/0/0
 ip address 10.0.13.1 255.255.255.0
interface GigabitEthernet0/0/0
 ip address 10.0.12.1 255.255.255.0
ospf 1
 area 0.0.0.0
 network 10.0.12.0 0.0.0.255
 network 10.0.13.0 0.0.0.255

R2:

interface Ethernet0/0/0
 ip address 10.0.24.2 255.255.255.0
interface GigabitEthernet0/0/0
 ip address 10.0.12.2 255.255.255.0
ospf 1
 area 0.0.0.0
 network 10.0.12.0 0.0.0.255
 network 10.0.24.0 0.0.0.255