VPNs Explained | Site-to-Site + Remote Access

Join the Discord Server!
---------------------
MY FULL CCNA COURSE

FREE CCNA FLASHCARDS

HOW TO PASS THE CCNA

SOCIAL

Disclaimer: These are affiliate links. If you purchase using these links, I'll receive a small commission at no extra charge to you.
---------------------------------------------------------------------------------------------------------------

VPN Stands for Virtual Private network. Its job is to ensure the safe delivery of data across public networks. By doing this, it allows users to send data as if they were connected directly to the private network.

Private WAN technology is available however they come at a price. Internet VPNs however only require a very affordable internet connection.

A VPN is often described as a tunnel. Your data is encrypted before it passes through the public internet. This way, if one of the bad guys does get their hands on your data, they can't make any sense of it. Once your data is received, it is then decrypted using a special key so it can be read.

There are two main types of VPN.

A site-to-site VPN connects two or more sites together. It needs to be configured on both networks, so it's ideal in situations when you have multiple remote sites.

But you may also have individual users that work from home, coffee shops or anywhere else in the world. These users still require access to the corporate network, but a site-to-site VPN won't work because you have no control over the networks they are connecting from.

Instead, they can use a remote access VPN. A remote-access VPN grants access to the corporate network but only for one device, for example, a users laptop in a coffee shop. This is unlike the site-to-site VPNs which connects two entire networks.

When configuring remote access VPNs, you need to decide if you want to use a 'full tunnel' or a 'split tunnel'. A full tunnel means that once connected to the VPN, all network traffic from this host will be forwarded to the corporate network. A split tunnel means only traffic destined for the corporate office is sent over the VPN. All other traffic is routed as normal.

IPSec is a framework or set of rules for creating VPNs over a network.
It does not define one way to create a VPN, but rather allows several protocols to be used for each VPN feature. IPSec is often used for site-to-site VPNs but it can also be used for remote access.

#ccna #cisco #networking

[emmanuelolisaemeka]

Thanks for these videos. I always get a sense of dissatisfaction when I respond to questions around networking during interviews. The last interview made me come back to your channel to look for specific videos on my weak areas. The way you explain these concepts makes it easy for a total novice. Great job certbros

[mohamedattouchi]

Your channel is one of many reasons that made me make it through job interviews. and currently i'm in a better job with a better salary that's why i would like to thank you AGAIN because I already did it last year and even with the new position i'm still watching your videos !! You are amazing

[martinhvistendahl]

I take a course in IT infrastructure and your videos have been very helpful! Thank you very much and keep up the good work!!!

[srinis]

The videos from cetbros are really tremendous. The most of the topics the way you explained was awesome. The people will love and start learning who doesn't have idea or interest in Networking !!! . We are really awaiting for more tech videos !!! Appreciate your great works

[conirangor]

Thanks for the video. Although m already CCNA certified but never get to use the knowledge in my line of work. These videos help a great deal as refreshers

[AhsanTirmiziVlogs]

for a guy like me who only knows how to swim in development frameworks and qa automation, this one simply tells what is network communication all about.. super awesome

[tyefeagin]

I can't watch enough of these videos they are really intriguing and teaching me too how computers really work

[luispauken]

Thank you always for your great videos. I bought your course in teachable and I even prepared my interview with your videos!

[mhgenmw]

Both simple and comprehensive for the non IT user. Thank you !

[temoteocao]

Well explained! great audio and presentation of the topic as well.

[FreshTechNetworkInterviewQA]

Your each and every video is very clear, understandable and well explained.
Thank you.

[jamespedersen]

Thank you for making this video! Your explanation of VPNs is very clear and informative.

[JpOojA]

Best example with wonderful animation. Thank youuu

[rjdiniz]

Very nice explanation, excellent to present to Customers and lay people who are not a professional to manage IT.

[kuba_]

Yeeees!!!! Finally great video about VPN´s. Thank you!! You are doing great job in this educative content!!

[ekambaramsainikhil]

come on man I love the tune much, it gives me a great energy 😋

[oliverbeer]

Love your content, easy to understand and like watching a cartoon, keep up the grate work.

[yahiaalmasri]

I really love this channel... You are a Hero!!

[BeardManC]

Very informative on Corporate usage of VPN's but can we get a video with a bit more information on the personal VPN's such as NORDVPN for example, and how it is able to do what it does, mainly the putting you in other countries to access stuff like Netflix to get different shows only available in different regions.

[cinemotographersid]

You are awesome. Iam expecting more about ipsec phase 1 and phase 2 explanation and also components of it