IPv6 - Neighbor Discovery Protocol

Подписаться 240 тыс.

Просмотров 65 тыс.

50% 1

Today my topic is Neighbor Discovery Protocol or NDP.
Similar to IPv4’s address resolution protocol (ARP), IPv6’s NDP uses ICMPv6 to discover each other on a local network. It is used to get the MAC/Link Layer addresses of available hosts, and the connection information of available routers. In this video, I will talk about Router Solicitation (RS), Router Advertisement (RA), neighbor solicitation (NS), neighbor advertisement (NA) and redirect message. ICMPv6 types are also discussed.
Playlist - IPv6 Basics
• Hexadecimal and Binary...
Playlist - IPv4 Basics
• Tricks to five classes...
This is my education channel. My topics cover networking, security, programming, data structure, algorithm, programming and other computer-related materials.
Please leave comments, questions and subscribe!
Thank you very much!
Sunny Classroom
Please subscribe my channel.
Please leave comments or questions.
Many thanks,
Sunny Classroom

Опубликовано:

14 окт 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 89

@railpressureflip 5 лет назад

Seriously man, best explanations on the internet about networking. What a legend.

@sunnyclassroom24 5 лет назад

Thanks a lot!

@i.m4531 2 года назад

he is my favourite

@Hansolodopesmoke 2 года назад

Taking an advanced undergraduate course in networking and you basically covered everything 1000x more clearly than the prof in 1/1000 of the time. Thank you so much!

@balur142 3 года назад

From last 2 years the concepts was never clear to me....now you completely made me to understand .. Thanks alot sunny.

@anabelsa 4 года назад

Great tutoria with great graphics. Finally I have managed to understand this, and it is even easy, when Sunny explains it.

@sagarneupane3564 4 года назад

You are absolutely the best teacher of networking.

@sunnyclassroom24 4 года назад

Thank you for your comments!

@Yasar4ever 3 года назад

This is the best explanation about NDP. LOVE U SUNNY. KEEP IT UP. u r genius

@tonihimbeer8344 7 месяцев назад

compact, easy to understand, great supporting graphics. simply excellent !

@jennykelly4111 2 года назад

You are the bomb Sunny! Thank you for this clear explanation and great visual example.

@paulgkealey 2 года назад

Thanks so much for providing this. Short and sweet.

@PETAJOULE543 5 лет назад

Good explanation about neighbor discovery protocol that consist of two major things: getting IPv6 address for itself and getting neighbor MAC address to ensure it is still available, from multicast group. Also, some interesting thing about packet type that is determined by number.

@sunnyclassroom24 5 лет назад

thanks a lot for taking time to make comments and your synopsis.

@alfonsotrocciola4527 4 года назад

This video is better than the ccna course definition of it they define in the frame "special multicast addresses" now i know why computers don't have to "read" the frame that's because of the ff02::1 all-node multicast group addresses. Thanks a lot

@akeelsalman7202 5 лет назад

Thank you Sunny it's very clear!

@sunnyclassroom24 5 лет назад

you are welcome.

@soumyaneogy9522 3 года назад

Very very good explanation , and very well presented . Keep posting such videos it was worth the time I spent watching this

@alexanderkar3215 3 года назад

Sunny you are a giant. Awesome vid

@ppvshenoy 5 лет назад

Nicely and clearly explained. Thank you very much.

@sunnyclassroom24 5 лет назад

You are welcome!

@miguelfelipe6 3 года назад

finally someone with actual helpful information, thank you !

@handyandyradio Год назад

Thank you, Sunny! This explained a lot!

@vladislavkaras491 Год назад

Thanks for the video! It was pretty helpful!

@acsmith818 5 лет назад

Excellent, concise video. Thank you.

@sunnyclassroom24 5 лет назад

Thank you for your nice comment. And you are welcome.

@SubchanaZhubaidi 4 года назад

Good job dude, what an awesome video. It is very clear to understand

@sunnyclassroom24 4 года назад

Glad it helped!

@stevenshakes978 3 года назад

When you talk about link are you referring you data link layer or network? I thought NDP operates at the Network Layer.

4 года назад

Excellent video, great explanation, only one doubt You say ICMP works at link-layer, but I think it does at Internet layer, isn't it?

@sunnyclassroom24 4 года назад

You are correct! I said it wrong if I really meant is layer 3.

@vidurarukshan143 4 года назад

@@sunnyclassroom24 I thought ICMP works at layer 4 and above

@abhishekpathak6061 4 года назад

great explanation and very simple

@papaimoeda 4 года назад

SUPER AWESOME EXPLANATION! SUPER SUNNY!

@sunnyclassroom24 4 года назад

Thank you! 😃

@vinodchandrasali608 3 года назад

Thank you. Its clearly understandable, have a small doubt, while A sending NS message to B how A already knows B`s solicited-node multicast

@miguelsierra7440 3 года назад

You are a legend Sunny!! thanks so much!!

@LizhiMi Год назад

very helpful. thank you so much

@rogeliovegam 5 лет назад

Sunny you are the best !!!

@sunnyclassroom24 5 лет назад

thanks, Rogelio!

@hunter4ful 4 года назад

very clear and organized. thank you

@sisayhailu4886 4 месяца назад

best explanations

@lavredisgoume 2 года назад

Thanks for the vid!

@DiegoSalazar78123 4 года назад

my doubt is, in all that neighbor advertisemnt and discovery what is the role of the switch since switches are layer 2. or do we need special layer 3 switches?

@remigiuszstras2133 2 года назад

Great, thanks! Can you also explain how ND is better than ARP?

@herudiasp.3921 6 лет назад

Thanks for the greta video! Your explanation is easy to understand. But, it will be more interesting if you upload the tutorial of this ND implementation on real device. Do you have any plan to do that? I'm really looking forward for your reply ;)

@sandyrose3208 4 года назад

Thanks sunny for clear explanation..

@sunnyclassroom24 4 года назад

You are welcome!

@TheKhanhr 4 года назад

Amazing video sir. Bit confused with the node solicited multicast addresses in the NS portion. Node A FF02::1:FF23:B578 and node B FF02::1:FECD:34EE, where node solicited multicast address prefix FF02::1:FF00:0000/104. Thank you

@TKKSuper 6 лет назад

thank you for your video !

@sunnyclassroom24 6 лет назад

You are welcome!

@harshilmahanoori3606 4 года назад

Hi Sunny very informative stuff... I have one question in the neighbor solicitation when Host-A sends a request for MAC Address to Host-B why does it not use the global unicast or link-local address of the Host-B. Why does it use solicit node multicast of B, any specific reason? Please explain. Thank You.

@martinstent5339 3 года назад

I’m just learning IPV6 as well, so maybe I’m wrong about this, but here’s the reason: Computer A and B are in the same local network, but they are not just connected directly to each other, they are connected through a switch. The ICMPV6 packages will be sent out as a level 2 (for example ethernet) broadcast, so they get sent to every computer on the local network. Because we are trying to find out the MAC address of computer B we cannot yet send a package directly to computer Bs MAC address. Likewise in the case that the 2 computers are connected by a level 3 switch, the message much be sent as a level 3 broadcast otherwise the level 3 switch will be forced to send the packet to all the local computers. That’s why it must use the node multicast address, so ensure that the packet gets sent to all local computers.

@ctid123321 Год назад

@@martinstent5339 all correct EXCEPT that multicast and not broadcast is the L2 transport.....IPv6 never uses L2 broadcast

@solverproblem7609 3 года назад

thank you

@mohitgenius5 4 года назад

What is the dest mac for Neigbour Solicitation. is it same as brodcast?

@valb4184 5 лет назад

Sunny, can you post a video on IGMP.

@sunnyclassroom24 5 лет назад

I put it on my to do list. Thanks a lot for your encouragement.

@GabrielLima-rf5xe 4 года назад

Hi sir, thanks for that vidos firstly. I have a question, when a host boots up, he sends message for all router using FF02::2, ok. My question is, for the host that want know the Neighbor in Neighbor Messagens, what adress they use FF02::2 or FF02::1, how that works ? Thanks for do a great job for community with this videos.

@sunnyclassroom24 4 года назад

IPv6 multicast addresses - FF02::1 is multcast to all nodes and FF02::2 to all routers on a network.

@tyrsjjh 5 лет назад

Great information Thank you

@Ms.Robot. 2 года назад

😍❤️

@psalty8736 5 лет назад

Good video

@sunnyclassroom24 5 лет назад

thanks.

@dipakrc5505 4 года назад

It's the best video.... Amazing 👌

@sunnyclassroom24 4 года назад

Thank you for your time!

@omarsalam7586 3 года назад

thanks

@DesireeGdUp 4 года назад

So I really am trying to follow this, PLEASE HELP ME. I have found IPv6 Ethernet connections an f8oe or something random devices connecting to my WiFi and using ALOT of data?. I never looked before and I decided to log into my Comcast account today to see why the bill was weird. Turns out I’ve been being charged 100$ extra a month because we go over the data limit.. but idk HOW and I’m thinking.. does this basically mean one of my neighbors is a total A hole and is having me pay for data that they are secretly using? Or even worse is it possible they can go through my personal devices photos and videos and private stuff as well? Please please help and tell me HOW to stop this if that’s what’s happening. Please

@DevDeffiliate 5 лет назад

So is NDP can be used to discover neighbours WiFi networks that you otherwise may not have access to?

@sean8102 3 года назад

lol no. By neighbor it means other ipv6 address the computer can see on the LOCAL network.

@abdelrahmaneldawi1377 2 года назад

Great

@owenyang9543 5 лет назад

NDP is over icmpv6 ,why it is at link layer of OSI model ?

@sunnyclassroom24 4 года назад

because layer 2 is local communications and NDP is a method to find your neighbors, which are sitting in your neighborhood. It is local. You don't look for your neighbor over the Internet which is layer 3.

@owenyang9543 4 года назад

@@sunnyclassroom24 if it is ipv4 ,the statement is correct,however in IPV6 the HW address resolving happens at layer 3 only,right ?

@sunnyclassroom24 4 года назад

@@owenyang9543 Just like ARP, ARP use IPv4 to find MAC address (layer 2). Local communications occur at the data link layer.