OSPF配置实验
实验拓扑图
实验需求
1.配置IP地址
2.分区域配置OSPF,实现全网互通
3.为了路由结构稳定,要求路由器使用环回口作为Router-id,ABR的环回口宣告进骨干区域
实验配置
1.配置IP地址
R1:
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]sysname R1 [R1]interface GigabitEthernet 0/0 [R1-GigabitEthernet0/0]ip address 100.1.1.1 24 [R1-GigabitEthernet0/0]quit [R1]interface GigabitEthernet 0/1 [R1-GigabitEthernet0/1]ip address 100.3.3.1 24 [R1-GigabitEthernet0/1]quit [R1]interface LoopBack 0 [R1-LoopBack0]ip address 1.1.1.1 32 [R1-LoopBack0]quit
R2:
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]sysname R2 [R2]interface GigabitEthernet 0/0 [R2-GigabitEthernet0/0]ip address 100.1.1.2 24 [R2-GigabitEthernet0/0]quit [R2]interface GigabitEthernet 0/1 [R2-GigabitEthernet0/1]ip address 100.2.2.2 24 [R2-GigabitEthernet0/1]quit [R2]interface LoopBack 0 [R2-LoopBack0]ip address 2.2.2.2 32 [R2-LoopBack0]quit
R3:
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]sysname R3 [R3]interface GigabitEthernet 0/0 [R3-GigabitEthernet0/0]ip address 100.2.2.3 24 [R3-GigabitEthernet0/0]quit [R3]interface GigabitEthernet 0/1 [R3-GigabitEthernet0/1]ip address 100.4.4.3 24 [R3-GigabitEthernet0/1]quit [R3]interface LoopBack 0 [R3-LoopBack0]ip address 3.3.3.3 32 [R3-LoopBack0]quit
R4:
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]sysname R4 [R4]interface GigabitEthernet 0/0 [R4-GigabitEthernet0/0]ip address 100.3.3.4 24 [R4-GigabitEthernet0/0]quit [R4]interface LoopBack 0 [R4-LoopBack0]ip address 4.4.4.4 32 [R4-LoopBack0]quit
R5:
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]sysname R5 [R5]interface GigabitEthernet 0/0 [R5-GigabitEthernet0/0]ip address 100.4.4.5 24 [R5-GigabitEthernet0/0]quit [R5]interface LoopBack 0 [R5-LoopBack0]ip address 5.5.5.5 32 [R5-LoopBack0]quit
2.分区域配置OSPF,实现全网互通
注意:实现全网互通,每台路由器都需要宣告本地的所有直连网段,包括环回口所在的网段。要求ABR的环回口宣告进骨干区域,即区域0,同时,每台路由器手动配置各自环回口的IP地址作为Router-id
在路由器上分别配置ospf,按区域宣告所有直连网段和环回口
R1:
[R1]ospf 1 router-id 1.1.1.1 [R1-ospf-1]area 0 [R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0 [R1-ospf-1-area-0.0.0.0]network 100.1.1.0 0.0.0.255 [R1-ospf-1-area-0.0.0.0]area 1 [R1-ospf-1-area-0.0.0.1]network 100.3.3.0 0.0.0.255
R2:
[R2]ospf 1 router-id 2.2.2.2 [R2-ospf-1]area 0 [R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0 [R2-ospf-1-area-0.0.0.0]network 100.1.1.0 0.0.0.255 [R2-ospf-1-area-0.0.0.0]network 100.2.2.0 0.0.0.255
R3:
[R3]ospf 1 router-id 3.3.3.3 [R3-ospf-1]area 0 [R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0 [R3-ospf-1-area-0.0.0.0]network 100.2.2.0 0.0.0.255 [R3-ospf-1-area-0.0.0.0]area 2 [R3-ospf-1-area-0.0.0.2]network 100.4.4.0 0.0.0.255
R4:
[R4]ospf 1 router-id 4.4.4.4 [R4-ospf-1]area 1 [R4-ospf-1-area-0.0.0.1]network 4.4.4.4 0.0.0.0 [R4-ospf-1-area-0.0.0.1]network 100.3.3.0 0.0.0.255
R5:
[R5]ospf 1 router-id 5.5.5.5 [R5-ospf-1]area 2 [R5-ospf-1-area-0.0.0.2]network 5.5.5.5 0.0.0.0 [R5-ospf-1-area-0.0.0.2]network 100.4.4.0 0.0.0.255
3.检查是否全网互通
检查ospf是否全网互通,一个是检查邻居关系表,看邻居关系是否正常;另一个是检查路由表,看是否学习到全网路由
检查R1的邻居关系表
[R1]display ospf peer OSPF Process 1 with Router ID 1.1.1.1Neighbor Brief Information Area: 0.0.0.0 Router ID Address Pri Dead-Time State Interface2.2.2.2 100.1.1.2 1 33 Full/BDR GE0/0 Area: 0.0.0.1 Router ID Address Pri Dead-Time State Interface4.4.4.4 100.3.3.4 1 30 Full/BDR GE0/1
可以看到,R1 分别和 R2 和 R4 建立了邻接关系,状态为 FULL,邻居关系正常
检查R1的路由表
[R1]display ip routing-table Destinations : 20 Routes : 20 Destination/Mask Proto Pre Cost NextHop Interface 0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0 1.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0 2.2.2.2/32 O_INTRA 10 1 100.1.1.2 GE0/0 3.3.3.3/32 O_INTRA 10 2 100.1.1.2 GE0/0 4.4.4.4/32 O_INTRA 10 1 100.3.3.4 GE0/1 5.5.5.5/32 O_INTER 10 3 100.1.1.2 GE0/0 100.1.1.0/24 Direct 0 0 100.1.1.1 GE0/0 100.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0 100.1.1.255/32 Direct 0 0 100.1.1.1 GE0/0 100.2.2.0/24 O_INTRA 10 2 100.1.1.2 GE0/0 100.3.3.0/24 Direct 0 0 100.3.3.1 GE0/1 100.3.3.1/32 Direct 0 0 127.0.0.1 InLoop0 100.3.3.255/32 Direct 0 0 100.3.3.1 GE0/1 100.4.4.0/24 O_INTER 10 3 100.1.1.2 GE0/0
可以看到,R1已经学到了全网所有网段的路由信息
可以自行测试接口是否连通