Hcip fifth operation

One 、 To configure IP

Two 、 To configure R3 R5/R6/R7 Between the MGRE Environmental Science
1、 Configure the default route first
[r3]ip route-static 0.0.0.0 0 14.1.1.1
Others in the same way
2、 To configure MGRE
[r3]int Tunnel 0/0/0
[r3-Tunnel0/0/0]ip add 10.1.1.1 24
[r3-Tunnel0/0/0]source g0/0/1
Jul 12 2021 20:18:14-08:00 r3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
[r3-Tunnel0/0/0]nhrp entry multicast dynamic
[r3-Tunnel0/0/0]nhrp network-id 100

[r5]int Tunnel 0/0/0
[r5-Tunnel0/0/0]ip add 10.1.1.2 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]source g0/0/0
Jul 12 2021 20:19:46-08:00 r5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
[r5-Tunnel0/0/0]nhrp network-id 100
[r5-Tunnel0/0/0]nhrp entry 10.1.1.1 14.1.1.2 register
Others in the same way

3、 Modify all tunnel The working mode of the mouth is broadcast
[r3-Tunnel0/0/0]ospf network-type broadcast

3、 ... and 、 To configure OSPF RIP
1、ospf

[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.16.1.1 0.0.0.0
[r1-ospf-1-area-0.0.0.1]network 172.16.1.65 0.0.0.0
Others in the same way
2、rip
[r12]rip 1
[r12-rip-1]v 2
[r12-rip-1]network 172.16.0.0
[r12]ospf 1
[r12-ospf-1]import-route rip
Four 、 Use multi process bidirectional republishing to deal with irregular areas 4
1、 stay R9 Create a second OSPF process
[r9]ospf 2 router-id 9.9.9.9
[r9-ospf-2]a 4
[r9-ospf-2-area-0.0.0.4]network 172.16.4.65 0.0.0.0
[r9-ospf-2-area-0.0.0.4]net 172.16.4.1 0.0.0.0

[R9]ospf 1
[R9-ospf-1]import-route ospf 2
[R9]ospf 2
[R9-ospf-2]import-route ospf 1

Routing table at this time

Four 、 Reduce LSA The number of updates
1、 Summary
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.1.0 255.255.255.0
[r6-ospf-1-area-0.0.0.2]abr-summary 172.16.2.0 255.255.255.0
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.3.0 255.255.255.0
[r9-ospf-1]asbr-summary 172.16.4.0 255.255.255.0
[r12-ospf-1]asbr-summary 172.16.5.0 255.255.255.0

2、 Termination of special areas
[r1-ospf-1-area-0.0.0.1]stub
[r3-ospf-1-area-0.0.0.1]stub no-summary
[r7-ospf-1-area-0.0.0.3]nssa no-summary

5、 ... and , to R3,R6,R7 do NAT
[r3]acl 2000
[r3-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[r3-acl-basic-2000]int g0/0/1
[r3-GigabitEthernet0/0/1]nat outbound 2000
Others in the same way