Hcip day 8

1、 The experimental requirements

1、 Use two-point two-way republishing
2、 All routers choose the best route
3、 There is a backup path , No loops , And routing feedback
4、R1 Except for self loopback , Plus several loops
172.16.1.0/24 deny
172.16.2.0/24 type 1
172.16.3.0/24 cost 6
172.16.4.0/24 type 1 cost 9
Change the above parameters

2、 The topology

3、 The analysis process

1、 Such as topology IP Address assignment , On the left for RIP, On the right is OSPF area0
2、2,2,2,2 and 4.4.4.4 Loopback may exist 32 Bit mask and 24 Bit mask routing , So the loop back interface , Change the loopback interface to broadcast type
3、 The backup path needs to be routed Cost Value modified in ASBR Just go to the , Routing feedback is OSPF Has been resolved in
4、 Prevent loops , take ASBR The above direct interface is retransmitted RIP and OSPF Area
5、 Finally, add routing rules

4、 Configure the content

R1

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 255.255.255.0
[r1-GigabitEthernet0/0/0]int g 0/0/1
[r1-GigabitEthernet0/0/1]ip address 14.1.1.1 255.255.255.0
[r1]int l0
[r1-LoopBack0]ip address 1.1.1.1 255.255.255.0
[r1]int l1
[r1-LoopBack1]ip add 172.16.1.1 24
[r1-LoopBack1]int l2
[r1-LoopBack2]ip add 172.16.2.1 24
[r1-LoopBack2]int l3
[r1-LoopBack3]ip add 172.16.3.1 24
[r1-LoopBack3]int l4
[r1-LoopBack4]ip add 172.16.4.1 24
[r1]rip 1
[r1-rip-1]version 2
[r1-rip-1]network 12.0.0.0
[r1-rip-1]network 1.0.0.0
[r1-rip-1]network 14.0.0.0
[r1-rip-1]network 172.16.0.0
[r1]ip ip-prefix 23 permit 23.1.1.0 24
[r1]int g 0/0/1
[r1-GigabitEthernet0/0/1]rip metricin ip-prefix 23 2
[r1]ip ip-prefix 4 permit 4.4.4.0 24
[r1]ip ip-prefix 43 permit 43.1.1.0 24
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]rip metricin ip-prefix 4 2
[r1-GigabitEthernet0/0/0]rip metricin ip-prefix 43 2

R2

[r2]int g 0/0/0
[r2-GigabitEthernet0/0/0]ip address 12.1.1.2
255.255.255.0
[r2-GigabitEthernet0/0/0]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip address 23.1.1.2 255.255.255.0
[r2]int l0
[r2-LoopBack0]ip address 2.2.2.2 255.255.255.0
[r2-LoopBack0]ospf network-type broadcast
[r2]ospf 1
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r2]ospf 1
[r2-ospf-1] import-route direct
[r2-ospf-1] import-route rip 1
[r2]rip 1
[r2-rip-1] version 2
[r2-rip-1] network 12.0.0.0
[r2-rip-1] network 2.0.0.0
[r2-rip-1] import-route direct
[r2-rip-1] import-route ospf 1
[r2]ip ip-prefix 5 permit 4.4.4.0 24
[r2]ip ip-prefix 6 permit 43.1.1.0 24
[r2]ip ip-prefix 1 permit 172.16.1.0 24
[r2]ip ip-prefix 2 permit 172.16.2.0 24
[r2]ip ip-prefix 3 permit 172.16.3.0 24
[r2]ip ip-prefix 4 permit 172.16.4.0 24
[r2]route-policy haha deny node 10
[r2-route-policy]if-match ip-prefix 1
[r2]route-policy haha permit node 20
[r2-route-policy]if-match ip-prefix 2
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 30
[r2-route-policy]if-match ip-prefix 3
[r2-route-policy]apply cost 6
[r2]route-policy haha permit node 40
[r2-route-policy]if-match ip-prefix 4
[r2-route-policy]apply cost 9
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 50
[r2]route-policy haha permit node 15
[r2-route-policy]if-match ip-prefix 5
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 25
[r2-route-policy]if-match ip-prefix 6
[r2-route-policy]apply cost-type type-1
[r2]ospf 1
[r2-ospf-1]import-route rip 1 route-policy haha

R3

[r3]ospf 1
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0] network 3.3.3.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0] network 23.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0] network 43.1.1.0 0.0.0.255
[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip address 43.1.1.3 255.255.255.0
[r3-GigabitEthernet0/0/0]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip address 23.1.1.3 255.255.255.0

R4

[r4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip address 14.1.1.4 255.255.255.0
[r4-GigabitEthernet0/0/0]int g 0/0/1
[r4-GigabitEthernet0/0/1] ip address 43.1.1.4 255.255.255.0
[r4-GigabitEthernet0/0/1]int l0
[r4-LoopBack0]ip address 4.4.4.4 255.255.255.0
[r4-LoopBack0]ospf network-type broadcast
[r4]rip 1
[r4-rip-1]version 2
[r4-rip-1]network 14.0.0.0
[r4-rip-1]import-route direct
[r4-rip-1]import-route ospf 1
[r4]ip ip-prefix 5 permit 23.1.1.0 24
[r4]ip ip-prefix 6 permit 2.2.2.0 24
[r4]ip ip-prefix 1 permit 172.16.1.0 24
[r4]ip ip-prefix 2 permit 172.16.2.0 24
[r4]ip ip-prefix 3 permit 172.16.3.0 24
[r4]ip ip-prefix 4 permit 172.16.4.0 24
[r4]route-policy haha deny node 10
[r4-route-policy]if-match ip-prefix 1
[r4]route-policy haha permit node 20
[r4-route-policy]if-match ip-prefix 2
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 30
[r4-route-policy]if-match ip-prefix 3
[r4-route-policy]apply cost 6
[r4]route-policy haha permit node 40
[r4-route-policy]if-match ip-prefix 4
[r4-route-policy]apply cost 9
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 50
[r4]route-policy haha permit node 15
[r4-route-policy]if-match ip-prefix 5
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 25
[r4-route-policy]if-match ip-prefix 6
[r4-route-policy]apply cost-type type-1
[r4]ospf 1
[r4-ospf-1]import-route rip 1 route-policy haha

5、 The results verify that

Two way republication
R1 adopt RIP Learned routes

R1 Go to 2.2.2.2 The next jump is 12.1.1.2

R3 adopt OSPF Learned routes

R3 Go to 4.4.4.4 The next jump is 43.1.1.4

R3 What I learned R1 The routing