#CCNA #LAB #ACl #OSPF
Basic using OSPF and ACL.
The goal is practicing with the basic
commands of OSPF and standard ACLs. You must do the next configurations:
1. - Configure the IP addresses as:
- Host A: 10.1.1.1/24. Gateway:
10.1.1.3
- Host B: 10.1.1.2/24. Gateway:
10.1.1.3
- R1´s G0/0: 10.1.1.3/24
- Host C:
10.3.3.3/25. Gateway: 10.3.3.1
- R1´s G0/1: 10.3.3.1/25
- S1: 10.2.2.1/24. Gateway:
10.2.2.3
- S2: 10.2.2.2/24. Gateway:
10.2.2.3
- R2´s G0/0: 10.2.2.3/24
- R1´s S0/3/0: 10.4.4.1/30
- R2´s S0/3/0: 10.4.4.2/30
Check that you can ping between
hosts in the same subnet:
- From Host A to Host B.
- From Host C to R1´s G0/1
interface.
- From S1 to S2.
- From R1´s S0/3/0 interface to
R2´s S0/3/0 interface.
Note that you
can´t ping between hosts in different subnets because the routers don´t have
any entry in their routing table.
2. – Enable OSPF in all interfaces
both R1 and R2 (area 0) with only one subcommand in the OSPF configuration.
Check that the neighboring
relationships have been created between R1 and R2.
Check that, after configuring OSPF,
you can ping between hosts in different subnets.
- From Host A to Host C.
- From Host C to S1.
- From Host A to S1.
2. – Configure ACL on the right
routers, interfaces and directions based on these requirements:
- Permit packets from S1 going to
subnet of hosts A and B.
- Deny packets from S2 going to
subnet of host A and B.
- Permit packets from S2 going to
subnet of host C.
- Deny packets from S1 going to
subnet of host C.
After
configuring ACL, check that:
- You can ping from S1 to host A
and B, but not to host C.
- You can ping from S2 to host C,
but not to hosts A and B.
Solution
The solution is marked as bold an
italic.
The goal is practicing with the basic
commands of OSPF and standard ACLs. You must do the next configurations:
1. - Configure the IP addresses as:
- Host A: 10.1.1.1/24. Gateway:
10.1.1.3
IP: 10.1.1.1
Mask:
255.255.255.0
Gateway: 10.1.1.3
- Host B: 10.1.1.2/24. Gateway:
10.1.1.3
IP:
10.1.1.2
Mask:
255.255.255.0
Gateway: 10.1.1.3
- R1´s G0/0: 10.1.1.3/24
Router>enable
Router#configure
terminal
Router
(config)#interface g0/0
Router
(config-if)#ip address 10.1.1.3 255.255.255.0
Router
(config-if)#no shutdown
Router
(config-if)#end
- Host C:
10.3.3.3/25. Gateway: 10.3.3.1
IP:
10.3.3.3
Mask: 255.255.255.128
Gateway: 10.3.3.1
- R1´s G0/1: 10.3.3.1/25
Router#configure
terminal
Router (config)#interface
g0/1
Router
(config-if)#ip address 10.3.3.1 255.255.255.128
Router
(config-if)#no shutdown
Router
(config-if)#end
- S1: 10.2.2.1/24. Gateway:
10.2.2.3
IP:
10.2.2.1
Mask: 255.255.255.0
Gateway: 10.2.2.3
- S2: 10.2.2.2/24. Gateway:
10.2.2.3
IP:
10.2.2.2
Mask: 255.255.255.0
Gateway: 10.2.2.3
- R2´s G0/0: 10.2.2.3/24
Router>enable
Router#configure
terminal
Router
(config)#interface g0/0
Router
(config-if)#ip address 10.2.2.3 255.255.255.0
Router
(config-if)#no shutdown
Router
(config-if)#end
- R1´s S0/3/0: 10.4.4.1/30
Router#configure
terminal
Router
(config)#interface s0/3/0
Router
(config-if)#ip address 10.4.4.1 255.255.255.252
Router
(config-if)#no shutdown
Router
(config-if)#end
- R2´s S0/3/0: 10.4.4.2/30
Router#configure
terminal
Router
(config)#interface s0/3/0
Router
(config-if)#ip address 10.4.4.2 255.255.255.252
Router
(config-if)#no shutdown
Router
(config-if)#end
Check that you can ping between
hosts in the same subnet:
- From Host A to Host B.
- From Host C to R1´s G0/1
interface.
- From S1 to S2.
- From R1´s S0/3/0 interface to
R2´s S0/3/0 interface.
Note that you
can´t ping between hosts in different subnets because the routers don´t have
any entry in their routing table.
2. – Enable OSPF in all interfaces
both R1 and R2 (area 0) with only one subcommand in the OSPF configuration.
R1:
Router#configure
terminal
Router (config)#router ospf 1
Router (config-router)#network
10.0.0.0 0.255.255.255 area 0
Router (config-router)#end
R2:
Router#configure
terminal
Router (config)#router ospf 1
Router (config-router)#network
10.0.0.0 0.255.255.255 area 0
Router (config-router)#end
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