Shulou(Shulou.com)06/02 Report--

First of all, look at this picture first. I have assigned each IP address.

Next, there is the experimental operation:

[R2] INT E0/0/0

[R2-Ethernet0/0/0] IP address 12.1.1.3 24

[R2-Ethernet0/0/0] q

[R2] int e0/0/1

[R2-Ethernet0/0/1] ip address 24.1.1.2 24

[R2] int e0Accord 0 (configure VRRP and virtualize an IP address on port E0Unix 0)

[R2-Ethernet0/0/0] vrrp vrid 1 virtual-ip 12.1.1.254 (fictitious an IP address)

[R2-Ethernet0/0/0] vrrp vrid 1 priority 150 (configure priority, and those with high priority will go through this route first)

[R2-Ethernet0/0/0] q

[R2] ospf 1 router-id 2.2.2.2 (OSPF is configured to allow three routers to interoperate)

[R2-ospf-1] area 0

[R2-ospf-1-area-0.0.0.0] network 12.1.1.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0] network 24.1.1.0 0.0.0.255

[R3] int e0/0/0

[R3-Ethernet0/0/0] ip address 12.1.1.4 24

[R3] interface e0/0/1

[R3-Ethernet0/0/1] ip address 34.1.1.3 24

[R3-Ethernet0/0/0] vrrp vrid 1 virtual-ip 12.1.1.254

[R3-Ethernet0/0/0] vrrp vrid 1 priority 100 (the default priority is also 100. this command can be written or not, as long as it is lower than R2)

[R3-Ethernet0/0/1] q

[R3] ospf 1 router-id 3.3.3.3

[R3-ospf-1] area 0

[R3-ospf-1-area-0.0.0.0] network 12.1.1.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0] network 34.1.1.0 0.0.0.255

As long as OSPF is configured on R4

[R4] int e0/0/0

[R4-Ethernet0/0/0] ip address 24.1.1.4 24

[R4-Ethernet0/0/0] int e0/0/1

[R4-Ethernet0/0/1] ip address 34.1.1.4 24

[R4-Ethernet0/0/1] q

[R4] ospf 1 router-id 4.4.4.4

[R4-ospf-1] ar

[R4-ospf-1] area 0

[R4-ospf-1-area-0.0.0.0] network 24.1.1.0 0.0.0.255

[R4-ospf-1-area-0.0.0.0] network 34.1.1.0 0.0.0.255

This is the end of the experiment, if you break a route, you can also access the external network.

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