HI MY NAME IS SHE HAVE FROM teach ethics.
Welcome you all.
Two Cisco fires was cause in this video.
We will discuss the topic of that is a security context by the end of this video.
You will be able to understand what is meant by a security context and why we need it.
And when we use it.
So let's start actually a it's a security context means that you have a single a is a physical appliance
or physical firewall and you divide it into a virtual device multiple visual devices those visual device
known as security context.
So mainly security context means virtual device.
So here you have a physical firewall.
You divide it into multiple contexts which are multiple visual appliances each context or visual appliance
is an independent device device.
It's considered an independent device.
It can have its own security policies its own interfaces and administrators as well.
All right.
So you might ask me why we need to do this we would see now in the next slide why we need to divide
a single A is A appliance to multiple visual appliance.
Suppose you are a service provider or Internet service provider and you have actually like many customers
for example you have 500 customers can you purchase 500 physical appliance for 500 customers.
Of course not.
It's not economical.
It's impractical.
So mainly use one physical firewall.
You divide it into multiple virtual firewalls and you connect many customers to the same physical firewall
each customer is connected to a virtual appliance which we call a context OK.
So the main purpose of using a security context is mainly of course you save money you reduce the cost
and of course as well ease of administration.
If you are a service provider and you have 1000 customers you can purchase 1000 physical is a firewall
for each customer.
Right because firewalls appliances are actually expensive they're costly.
So as the figure shows here this green rectangle represents one physical a as a appliance which we divide
it into separate context context a context B context see each context which means each virtual firewall
is connected to a separate customer.
OK
so here we go.
Let's summarize what we just mentioned.
What are the common uses of security context.
As I said you're a service provider and you said security services to many customers by enabling month
through multiple security context on the security appliance you can implement a cost effective so you
save cost you reduce the cost space saving solution of course if you have 10 firewalls it's not like
that you have like 50 firewalls so you saved space you save coast and also you keep customer traffic
separate from each other.
So you separate customers by enabling the security context on the firewall.
So each customer will have its own private traffic on one single physical appliance right.
Also if you are a large enterprise or a college campus and you want to keep departments completely separate.
If you have like for example a campus if you are a university and you want to keep each department separate
from the other departments for example the finance department.
Each our department.
You want to keep those departments separate from each other and you have only one firewall so you can
enable security context and each department will be connected to a separate visual interface or a separate
context.
All right.
Same thing if you are an enterprise and you want to provide distinct security policies to different
departments.
It's the same meaning if you have different departments each department has its own security policy.
The H R has some security restrictions not like the sales department.
Not like the administration department.
So each department can be connected to a separate context.
Each context has has its own security rules and policies.
All right so that's all for this video.
In the next review we will discuss the topic of what we call an A as a deployment modes.
I hope you enjoyed the video.
Thank you for watching and see you in the next video.