To help us reinforce the concept of dynamic routing protocols,
including use of BGP, I'd like to propose this scenario.
Let's imagine we have a customer.
They have connected their tier 0 gateway.
This is tier 0 gateway 7 right here.
And they've connected it to an external segment on the 10-220
network with a 24-bit mask.
And the external router is at .1.
They've also configured border gateway protocol
between the external router and the tier 0 gateway.
However, the customer reports that VMs, for example,
take this VM right here on the 10-20 network. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
take this VM right here on the 10-20 network.
It's at .21 on that subnet on segment 20.
These VMs, they cannot ping the IP address of 10.220.0.1,
which is the IP address of the external router running BGP.
So I've got a couple of questions for you regarding this.
Number one, what problems can you predict
that could be hampering or causing the lack of connectivity
for a ping test between this VM here, VM4,
and the external gateway?
Then secondly, based on those predictions
of what could go wrong, I'd like you to propose some solutions WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
of what could go wrong, I'd like you to propose some solutions
that could involve things to check or things to correct
to go ahead and make sure we have full connectivity
between our VMs and this external network.
So that, my friend, is my challenge for you
to pause for a few minutes.
Think about that.
List them out, either write them out or discuss them
with somebody or at least process them in your head.
And then when you're ready and want to compare notes,
join me in the next video and we'll compare notes together.