In the previous section, we already learn about static routing. 2
The disadvantages of static routing is when our network is dynamic. 3
Every time we add new router to our network, we will need to add static routing configuration on all router. 4
Let’s say we already have 100 router, and then we add 1 new router, 5
so we will need to add static routing configuration on all router, which is 101 routers. 6
This is why we will learn about dynamic routing in this section. If we use dynamic routing, 7
when we add 1 new router, we just need to add configuration on the new router and the neighbor. 8
So let’s say we have 100 router, and then add 1 new router, so we just need 9
to add routing configuration on 2 router, which is the new router and the neighbor. 10
Okay let’s just start, we will create a topology with 2 router 11
first to learn about dynamic routing. Let’s import 2 router, 12
let’s change the name, this is router 1 and this is router 2. 13
Then let’s connecting this 2 router. Let’s also import 2 pc. 14
pc 1 will be connected to router 1, and pc 2 will be connected to router 2. 15
Let’s also change the name of the pc, this is pc 2 16
and this is pc 1. Now let’s connecting pc 1 to router 1 and pc 2 to router 2. 17
For the ip addressing, here will be 10.10.10.1/24, 18
router 2 will be 10.10.10.2/24, 19
router 1 that connected to pc 1 will be 192.168.1.1/24, and pc 1 will be 192.168.1.2, 20
router 2 connected to pc 2 will be 192.168.2.1/24 and pc 2 will be 192.168.2.2. 21
Now let’s configure the ip address on all router and pc. 22
Let’s start with router1, no, enable, configure terminal, let’s start with fa0/0, 23
no, enable, configure terminal, let’s start with fa0/0, so interface fa0/0, 24
no shutdown, ip address 10.10.10.2 255.255.255.0, 25
Next let’s configure fa0/1, 26
so interface fa0/1, ip address 192.168.1.1 255.255.255.0. 27
Okay done for router 1, next let’s configure router 2, 28
no, enable, configure terminal, let’s start with fa0/0, so interface fa0/0, no shutdown, ip address 10.10.10.2 255.255.255.0, 29
Next let’s configure fa0/1, interface fa0/1, no shutdown, ip address 192.168.2.1 255.255.255.0. Okay now we have done on router2. 30
But we can see here that the interface of router 1 is still red, we forget to no shutdown on fa0/1. 31
Okay now the light is green. Let’s check the ip address, do show ip interface brief. 32
Okay here we can see that the ip address of fa0/0 is 10.10.10.1, this is correct, 33
and fa0/1 is also correct. 34
Let’s also check on router 2, do show ip interface brief, okay here the ip address is also correct. 35
Now let’s configure the ip address of pc 1 and pc 2. Let’s start with pc 1, 36
the ip address is 192.168.1.2, and the gateway is 192.168.1.1. 37
Pc 2, 38
the ip address is 192.168.2.2 and the gateway is 192.168.2.1. 39
Okay now we have done configuring ip address on all router and pc. 40
but for now, pc 1 should not be able to communicate with pc 2. 41
Why? Because the table routing in router 1 and router 2 is not complete yet. 42
Let’s write the routing table, on router 1 should have 2 network, 43
first, 10.10.10.0/24 that connected to fa0/0, and 192.168.1.0/24 that connected to fa0/1. 44
Let’s check it, do show ip route, 45
here we can see that router 1 have 2 network in the routing table, as our calculation. 46
Let’s also write the routing table on router 2, the first is 47
10.10.10.0/24 that connected to fa0/0, and then 192.168.2.0/24 that connected to fa0/1. 48
Let’s verify it, do show ip route, here we can see that router 2 have 2 network in the routing table. 49
So now pc 1 and pc 2 should not able to communicate each others. 50
In the next video, we are going to configure dynamic routing, 51
so pc 1 will able to communicate with pc 2. 52
I think enough for this video 53
Thank you for watching and see you on the next video.