What is the Purpose of a Router?

[@lowtech42]

really appreciate the way these videos break everything down and provide visuals!

[@EdsterL]

Jacob you are truly amazing at explaining the material, thanks for sharing.

[@alhaq14]

You're an unbelievable instructor, thank you

[@tahersadeghi6773]

Bravo Jacob. Great presentation. Good knowledge. You make the subject very pleasant!

[@haftamumekonnen4666]

I like the way you make explanations. Thank you.

[@andrejsekela274]

Hello Jacob, I really like your videos and find them truly educative. I can mention just one hint for the viewers to improve my and ours experience from this. It is the music, after watching like 3 videos after each other I find that my brain would appreciate more easygoing and soft music...or you can change the podcast music to a different one the same color, if you know what I mean. Thank you like that a lot. LP

[@farkhankhoir5140]

the presenter is very good to explain.... good job

[@harryhatchet5680]

Amazing. Helped so much being a student, would love to see more topic videos uploaded by you.

[@sukumarane2302]

Good presentation…thanks ..,I would like to see more videos on internet from you 👍

[@hpsinghmca]

Simple words, you are awesome... Thanks!

[@mohitbansaltalks963]

Your way of describing topics are very good. Thanks for sharing such videos.

[@epicwithin4555]

Hi there, Your videos have been super helpful. Could you answer the following: How can a router share internet connection to multiple devices?

[@Assialouza]

Thank you very much for this nice video demonstration . I have my CCNA certification since 2019 and still couldn't find a job due to luck of experience and I have only one more year left. Would you give me some suggestions that might help?

[@sanjay1coc684]

You are an excellent instructor, you have simplified the network understanding . great work!

[@avnersamsony]

execellent explanation thank you very much

[@jagdishbelapure7521]

One of the best presentation!! thank you so much!!

[@denniscassar8007]

Great videos.... Need to reduce background music. Distracts from absorbing content. Great videos overall.

[@avazara408]

Amazing amazing... U explained very well clear like water

[@svend.waterlaw8592]

You explaining the IT stuff so well...compared to my IT teacher...you're a genius. Sadly our documents and explanations in our school (switzerland) aren't that great like yours. Thank you!

[@Paranoifd]

What !!!! i thought that foreign country like Switzerland has really good resources

[@omikrog8497]

why are youtube guys better than our teachers?

[@ramcharan1553]

Awesome explanation bro.

[@catalist7903]

keep it up amazing tutorial

[@mathsinfluence]

Do we use some other type of routers for ATM & for frame relay WAN technology or IP router is the only category which works for all these technologies?

[@networkingwithh4716]

That was a good explanation

[@NerdyMoises]

Thank you for this video

[@adeniyifatuyi5250]

Good impacting stuff

[@abdul-razakyahaya4833]

Thank you Buddy

[@Krutzo11]

Nothing beats a little Wild Wild West

[@noof12360]

So smart thank you

[@yomakohang]

Music is louder than the voice itself !!

[@dr.s.k.bhatia5719]

Nice and informative video

[@CHRISNIRMAL]

Hey Jacob, Can you pls upload CCNP route & switching stuff for learning, that would be good for all learners

[@dr.r.aravindhanm.eph.d1046]

Hai Jacob, Good explanation

[@macbethmabena9816]

Thanks

[@BigBroDazzy]

This guy is like a god!

[@rohitchatterji1783]

Awesome job Jacob. You are a great teacher. Do you teach online ? do you have online classes ?

[@jacobhess3129]

Hi Rohit and thank you for the compliment! Indeed, I do have online classes and my company has an entire training program in fact. If you are interested to learn more be sure check out our website: www.nexgent.com/zero-to-engineer.html

[@NGTAcademy]

Hi Rohit. We actually have a full program called Zero To Engineer. Please visit www.nexgent.com/zero-to-engineer/ to learn more!

[@OfficiallyOrca]

Jacob looks like he been hitting the gym lol Great video as always!

[@michaelcostello6991]

It would be nice to see router wired to switch and some of the other stuff you mention, Is it just one cable between router and switch ??

[@NGTAcademy]

Yes routers and switches simply connect to each other via Ethernet over Cat5e or Cat6 cable.

[@NGTAcademy]

There's also an example in the video

[@ameliachloe6676]

Very Nice

[@worldoframanan3358]

Please add more more videos i like ur accent

[@chrismendez3415]

Hey Jacob, great stuff! Quick question though. Because these routers can route your LAN traffic and essentially to the internet, does that internet connection or WAN connection have much config to it since it's just used to go out to the web? Not sure if that made sense, haha

[@NGTAcademy]

Hi Chris! Thank you for the compliment and also for the question. To start, there are multiple pieces of configuration that will be needed on a router to setup a WAN connection to the internet. I will list those steps here shortly, however I wanted to note that in home routers and SOHO routers these things are already configured and set up by default. So, for those type of routers there is little to no configuration needed out of the box unless you need to open up some TCP ports for forwarding or something like that. Anyhow, here are the steps of things that need to be configured on a router to connect to the Internet. On the Internet/WAN interface set up the following: 1. An IP address and Subnet Mask - from the public subnet provided by your Internet Service Provider. This IP address needs to be manually configured on the router unless you (and the ISP) are doing DHCP on the public side. Most residential internet services use DHCP for this, but business grade internet connections usually do not and must be manually configured. In addition to setting the IP address and subnet mask you also must remember to turn the interface on. On Cisco routers all the interfaces are turned off by default and you have to do a "no shutdown" command to turn them on. 2. A Default Route (aka Gateway of Last Resort) - the default route is a route to all unknown traffic. We point the default route out to the ISP next hop (next router) IP address. We do that because the destinations on the internet are all unknown to our router (unless our router does full routing table BGP peering on the public internet). So, when our router receives an IP Packet to a destination network that it doesn't know about it will send it to the ISP router. This is because the upstream routers at and beyond your ISP have routes for the entire internet in their routing tables and they will know where to send it to get to Google's server IP addresses for example. Home and soho routers already have a default route in place, well... by default! In an enterprise grade router though it's up to you to configure it! 3. Network Address Translation (NAT) - more specifically PAT aka NAT overload or NAT hide. This is needed to translate your internal IP Address pool into your globally routable IP address that lives on your router's public interface that faces the internet. The full NAT configuration on a Cisco router has multiple parts and pieces, but on home/soho routers it's already setup in accordance with the default private network that comes preconfigured. 4. Access Control List (ACL) + Stateful Firewall - here again with home/soho routers this is defaulted to block incoming traffic and allow outgoing connections. With most business/enterprise grade routers and even firewalls an ACL needs to be applied to block inbound traffic from the internet and then stateful Firewall inspection rules must be put in place to allow the specific traffic you want to be able to leave your network and come back in. That may have been more info than you were expecting, but it is pretty thorough!

[@chrismendez3415]

Haha, not a problem. The more info the better for me. Thanks for explaining this though. I kinda was "lost" on the business side of the routers and what was involved as far as ultimately getting out on the web. This makes perfect sense. Thanks for explaining this! #levelup

[@susanasher6939]

Thank you! Great, simple explanation!

[@17TheVIP]

If the porpouse of having two LANs is that they shouldn't communicate each other, but at the same time both LANs need access to Internet and the only way is connecting both to a router, but now both LANs can communicate each other, but this is contradicting the porpouse of been separated, I'm confused.

[@NGTAcademy]

17TheVIP both LANs can also communicate with each other through the routing process if we allow it.

[@bulcub]

Since it seems like he is talking about layer 2 switches, They will need to be trunked together so that they can talk to each other and access the internet.

[@mathsinfluence]

Hey jacob , it was an awesome video👍🏻 But other tutors don’t explain well on your channel

[@MoonLightGGA]

music is so disturbing

[@NGTAcademy]

Thank you for the comment Moon Light. In most videos we only have the music in the introduction and closing.

[@JohnJCButtigieg]

I actually really like the music haha

[@JohnJCButtigieg]

Yeah up this +1

[@genlucero2974]

The video and tutorial is great.. except for the music, it's kinda disrupts my focus.

[@KarIiah]

Yeah, I agree. The volume should be lowered a tad bit. And the bass should be more even as it interferes with speech because it stands out so much. :)

[@burhanuddin127]

Today I learned the correct full form of www😂😂

[@Xolerys]

I don't get it, if they're both on their own networks don't u need 2 routers?

[@burnsybob70]

Good video but need to get rid of the background music

[@tigistmesselu3143]

thanks so muchhhhhhhhhhhhhhh...................................

[@Sameer-yq5gh]

8:47 www= world wide west wtf ? still great video

[@ZjinnX]

Sounds like he's saying "the wild wild west" xd

[@nilayturg]

it is a great training but please remove the music behind :) many thanks

[@ostheber7540]

Does a router increase your WiFi

[@karamajaj626]

Wild Wild West .. really?! 😅

[@jacobhess3129]

Haha, yes my way of relating to the risk of the public internet... www :) Anything goes out there, gotta protect yourself!

[@islamabadianstar6946]

A ROUTER and an internet MODEM ..... What's the difference between them ?

[@JJFlores197]

A modem is a device that connects your router to your provider's network. Think of it as a bridge that links two places together. A router allows you to connect to other networks. It routes IP packets to and from their source and destination. Most home internet providers will sell/rent/give you a combo unit which includes a modem, router, and wifi access point in one box. They may call it a gateway or other fancy marketing name.

[@islamabadianstar6946]

@@JJFlores197 Thank You so much

[@jimnkor]

Backround music is distracting.

[@KS-bq4rs]

cant hardly hear you with the music in the background..its off putting

[@vasudevreddy7443]

Content is really good but music irritated me...

[@RobFos]

music is so distracting and cant barely hear whats going on..... (sighs)

[@jordanmoorman5024]

Jacob, your channel is great but I think you're limiting your subscriber potential. Maybe have a side series on tech for everyday users? But please stick to the original content, too!

[@rigonajvazaj7667]

Maybe turn off music cant concentrate, good job tho.

[@RajKumar-fr8io]

Your beck ground music is badly disturbing while I use headphones Please don't use back ground high lavel music....

[@milkdromedaquantic8593]

Music is too loud !!!!!!!!!!!!!!

[@TedPeterson]

It's pronounced "roo-ter".

[@alpha_centaurus5396]

Please remove the background music, to focus on u .

[@miaisabelle6620]

Your voice is not clear

[@cyrage4461]

You should change name befor youre channel will be removed. Its a wifi company called nextgentel in my contry they may find ur channel

[@gordonnewbould4684]

Much too much wasted repetitive words ! Padding and boring.