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Okay, now we have done configuring ip address
on router 1 and router 2.

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Next in this video, we are going to configure routing so all pc
will able to communicate with all servers.

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For now, all pc should not able to communicate
with servers. Why? Because router 1 don’t have a

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route to go to server, and router 2 also don’t
have a route to go to the pc. Let’s check it.

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Do show ip route, here we can see that
router 1 only have route to 10.10.10.0/30,

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vlan 10, vlan 20, and vlan 30, router 1
don’t have a route to go to the server yet.

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Let’s also check on router 2, do show ip route,

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here we can see that router 2 only have route
about 10.10.10.0/30 and 192.168.1.0/24,

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router 2 don’t have a route to go
to vlan 10, vlan 20, and vlan 30.

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This is why we need to configure
routing on router 1 and router 2.

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You are free to use any routing protocol,
you can use static routing, eigrp, or ospf.

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But in this case, I will use ospf. Let’s
start with router 1. Router ospf 1,

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let’s advertise all connected network, here router 1 have
4 connected network, let’s start with 10.10.10.0,

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so network 10.10.10.0 0.0.0.3 area 0, remember
that for prefix /30, the wildcard bits is 0.0.0.3,

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next let’s advertise the network of all vlan.

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Let’s start with vlan 10, network 192.168.10.0
0.0.0.255 area 0, next for vlan 20,

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network 192.168.20.0 0.0.0.255 area 0, last for
vlan 30, network 192.168.30.0 0.0.0.255 area 0.

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Okay now we have done configuring ospf on
router 1, next let’s configure ospf on router 2.

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Router ospf and then the id, you are free to
use any number, in this case I will also use 1.

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Next let’s advertise all connected network,

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in this case, router 2 have 2 connected network,

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let’s start with 10.10.10.0 first,
so network 10.10.10.0 0.0.0.3 area 0,

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next let’s advertise the network that connected
to server, network 192.168.1.0 0.0.0.255 area 0.

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Okay now we have done configuring
ospf on router 1 and router 2.

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Let’s check the routing table, let’s check on
router 1 first, do show ip route,

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here we can see that router 1 already have route to go to the
server, and the label is O, this is means ospf.

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Let’s also check on router 2, do show ip
route, here we can see that router 2 also

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have route to vlan 10, 20, and 30. And
the label is also O, this is means ospf.

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So now, all pc should be able to
communicate with all servers. Let’s test it.

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Vlan 20 to server 1, failed, test again,

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and success, vlan 30 to server 1, success,
vlan 10 to server 2, failed, test again,

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okay here success, vlan 10 to server 3,
failed, test again, okay this is also success.

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Okay so now all pc is able to
communicate with all servers.

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I think enough for this video, in the next video,
we are going to start learning about access list.

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Thankyou for watching and
see you on the next video.