What is the Purpose of a Router?
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- čas přidán 18. 10. 2017
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really appreciate the way these videos break everything down and provide visuals!
Jacob you are truly amazing at explaining the material, thanks for sharing.
Amazing. Helped so much being a student, would love to see more topic videos uploaded by you.
One of the best presentation!! thank you so much!!
You're an unbelievable instructor, thank you
Your way of describing topics are very good. Thanks for sharing such videos.
Bravo Jacob. Great presentation. Good knowledge. You make the subject very pleasant!
I like the way you make explanations. Thank you.
Amazing amazing...
U explained very well clear like water
Simple words, you are awesome... Thanks!
the presenter is very good to explain....
good job
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
You are an excellent instructor, you have simplified the network understanding . great work!
execellent explanation thank you very much
Thank you for this video
Nice and informative video
Awesome explanation bro.
Good impacting stuff
why are youtube guys better than our teachers?
Good presentation…thanks ..,I would like to see more videos on internet from you 👍
Great videos.... Need to reduce background music. Distracts from absorbing content. Great videos overall.
keep it up
amazing tutorial
Jacob looks like he been hitting the gym lol Great video as always!
That was a good explanation
So smart thank you
Thank you Buddy
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?
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?
Hi there,
Your videos have been super helpful. Could you answer the following: How can a router share internet connection to multiple devices?
Hey Jacob, Can you pls upload CCNP route & switching stuff for learning, that would be good for all learners
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!
What !!!! i thought that foreign country like Switzerland has really good resources
Very Nice
Hai Jacob, Good explanation
Thank you! Great, simple explanation!
Please add more more videos i like ur accent
Nothing beats a little Wild Wild West
Hey jacob , it was an awesome video👍🏻
But other tutors don’t explain well on your channel
Thanks
This guy is like a god!
Music is louder than the voice itself !!
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
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!
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
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 ??
Yes routers and switches simply connect to each other via Ethernet over Cat5e or Cat6 cable.
There's also an example in the video
Awesome job Jacob. You are a great teacher. Do you teach online ? do you have online classes ?
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
Hi Rohit. We actually have a full program called Zero To Engineer. Please visit www.nexgent.com/zero-to-engineer/ to learn more!
Today I learned the correct full form of www😂😂
thanks so muchhhhhhhhhhhhhhh...................................
music is so disturbing
Thank you for the comment Moon Light. In most videos we only have the music in the introduction and closing.
I actually really like the music haha
The music is not bad, i would have it at a lower level, as it is distracting from what he is saying!
Yeah up this +1
The video and tutorial is great.. except for the music, it's kinda disrupts my focus.
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.
17TheVIP both LANs can also communicate with each other through the routing process if we allow it.
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.
Good video but need to get rid of the background music
it is a great training but please remove the music behind :) many thanks
I don't get it, if they're both on their own networks don't u need 2 routers?
8:47 www= world wide west wtf ? still great video
Sounds like he's saying "the wild wild west" xd
Does a router increase your WiFi
Wild Wild West .. really?! 😅
Haha, yes my way of relating to the risk of the public internet... www :) Anything goes out there, gotta protect yourself!
cant hardly hear you with the music in the background..its off putting
Backround music is distracting.
A ROUTER and an internet MODEM ..... What's the difference between them ?
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.
@@JJFlores197 Thank You so much
Content is really good but music irritated me...
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!
music is so distracting and cant barely hear whats going on..... (sighs)
Maybe turn off music cant concentrate, good job tho.
Music is too loud !!!!!!!!!!!!!!
Your beck ground music is badly disturbing while I use headphones
Please don't use back ground high lavel music....
It's pronounced "roo-ter".
You should change name befor youre channel will be removed. Its a wifi company called nextgentel in my contry they may find ur channel
Your voice is not clear
Please remove the background music, to focus on u .
Much too much wasted repetitive words ! Padding and boring.