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In the previous video, we already configure
the ip address of all router, server, and pc.

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Now in this video, we are going to configure
routing between Google and ISP.

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In this case, we are going to use BGP. Remember that bgp is
used to connecting between autonomous system.

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So let’s say google is in autonomous system
1, and ISP is in autonomouos system 2.

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Let’s start with google, router
bgp 1, let’s define the neighbor,

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in this case the neighbor will be ISP, so
neighbor and then the ip address of ISP,

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which is 10.10.10.2 remote-as 2, so this
is the autonomous system number of ISP.

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Next let’s advertise the connected
network, let’s start with 10.10.10.0,

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so network 10.10.10.0 mask 255.255.255.0,

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Next let’s advertise the network that connected
to server, network 172.16.10.0 mask 255.255.255.0

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Okay we have done on google router, next
let’s configure on ISP, router bgp 2,

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and then let’s define the neighbor, in this case the
neighbor is google, so neighbor 10.10.10.1

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remote-as 1. This is the ip address of google, and
this is the autonomous system number of google.

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Next, let’s advertise the connected network,
network 10.10.10.0 mask 255.255.255.0,

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we will also need to advertise the
network that connected to customer,

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so network 10.20.20.0 mask 255.255.255.0

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Okay now we have done configuring
bgp on google and ISP. For testing,

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here we can see the routing table on ISP.

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Do show ip route, here we can see that now
ISP have a route to go to the google server,

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which is 172.16.10.0/24.

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Let’s also check the routing
table on the google router,

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do show ip route, here we can see that we also
have a route to go to the customer network,

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which is 10.20.20.0/24.

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Okay I think enough for this video, in the next
video, we are going to learn about the concept

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of network address translation.

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Thank you for watching and see you on the next video.