IPv6 Aug 2021 | Cisco CCNA 200-301

[Music] [Applause] [Music] [Applause] soaring mouse first one in welcome welcome glad you're here amazing camel green piranha it's gonna be a good day [Music] hello smart goose welcome [Music] hello eliza [Music] creative lemur speedy sea lion glowing badger great to have everybody here [Music] so hey cmh tw94 and epigene and dirtec and adeline adeling maybe alex daniel hello hello i just got back uh friday night late from i was in maine uh great time good to be back in las vegas where it's nice and toasty i'm certainly glad to share a little bit of time today with all of you for this quiz so if you're new in your journey in the world of ccna or if you've been here for a while either way is great this channel is dedicated these days to helping individuals learn the technologies on the cisco ccna so my name is keith barker for this is our first time meeting welcome welcome if you want to set your schedule for study every saturday at 10 a.m pacific time i hold an office hour on discord which is free there's a link in every video uh and it's just an hour from 10 a.m pacific time to 11 where you can ask questions if you have them about what you're studying or want some insight and then every sunday at 11 a.m we have this quiz and yesterday in the office hour somebody recommended hey how about ipv6 we haven't done that in a few months so here it is oh chris morgan is in the house chris hi doing well thanks for uh being here chris is one of our fantastic moderators who's volunteering his time just like all just like we all are to helping other people so good to see you chris and everyone else good to see you all right benjamin's here from mozambique i've never been there would like to someday [Music] reigning cats and dogs here in the uk says cmhtw 94 just don't step in a poodle kenneth is here from nigeria welcome and the game pin manny's asking is in the upper uh on the top right hand side of the screen jaeger's here from morocco norwich chris is from norwich oh it's chris hi chris um landerman is in the uk j strict is in michigan my head is here from algeria first time glad to have you and if you are brand new if you want to are you fear serious about or even if you're not serious if you're working towards your ccna if you have the availability on saturdays at 10 a.m for the discord server the office hour and 11 o'clock a.m on sundays pacific time for this quiz or one like it regarding ccna topics set your schedule it's a lot of fun i know i benefit every time i have an office hour or online quiz even though i'm a double ccie and i've been doing it for about 30 years i still learn something new or different or insightful almost every session so i'm right there along with you in the learner seat and if i can do it almost anybody can do it i am super average i just work really hard too so average and consistency is an amazing combination being really smart if you're that way and being consistent is amazing too but if you're not you can still be consistent so that's where i put myself all right alex is in algeria as well welcome welcome simple enough brand new glad to have you all right emma he's just saying i already passed my cc name just because i'm here because why not fantastic always something to learn atlanta and same thing got my ccna but brushing up on ipv6 rock and ron is here from the uk good to have you here [Music] yeah so uh zachary it's eight one three but it's not six seven nine five it's actually six one nine five that's the pin yeah jay strict is helping us out there thank you thank you godzilla's here from argentina mani manny's here from india welcome welcome and we're going to start here in about a couple minutes [Applause] all right afghanistan is in the house welcome everybody uh gotti gaming is asking any ccilab failed if that's for me yeah i failed uh i got my first one my first cc i wrote a switch i i got that in 2001 and i passed it the first time but the only reason i passed it the first time was eight months of study four to five days a week four to five hours a day just on the cca topics so back in the day we had a lot of topics that are now gone totally gone like token ring switching data link switching ipx stuff we don't need anymore i don't use anymore but um the second one i took a couple hours a couple years later my cci insecurity i failed that twice because i was a little cocky i have a little cocky going in yep i should pass this nope not unless you really get it and so i i failed one of those because of some basic bgp like on my cci route switch i had bgp down pat i was ready and then in my security ccie i get i failed twice on that one and got it the third time but i failed because of other technologies other than security that i just because routing and switching and the fundamentals don't change and so if a packet can't get from point a to point z no matter why you're in trouble if you need a functioning network so i actually got really upset with myself i went back a second time for that cci insecurity failed it again i said i'm done i'm done get the world's smallest violin for this person and uh i then just brushed myself off got back up studied for a few more months and went back and got it but it made me much better at security than i ever would have been had i just got it the first time so yeah not not easy but worth it just like a ccna not easy but worth it it's a great stepping stone vias is here love you ask welcome welcome vac nurse here from brazil fred is saying hi to everybody blendinator aka dan is in the house blendinator is one of our all the moderators on our discord server is are fantastic and dan is absolutely no exception i think dan is from kanada am i putting the right emphasis on the right to lobble there canada dan great to see you uh i do i'm i'm moved by all the support that people are giving each other and it's gonna make a difference it does make a difference getting my ccie i'll be back up getting my ccna my first one i ever got in 1999 which is like 22 years ago 23 years ago um that was the significant the one most significant course direction i ever made because that led to additional things with cisco and ccnp and ccie and then other opportunities with hewlett-packard and palo alto and checkpoint and big-ip with f5 and microsoft and other vendors but it all just starts with a direction and keep on moving samuel's in the house welcome emanuels from nigeria welcome everybody we have an international crowd usually and that's no exception today let me take a look at my watch you know what we're going to start off if anybody comes in late and they uh they feel like they want to post the answers in the in the chat just kindly remind them um to join the game the pin number should be at the very bottom of the screen you can do it on their smart app or go to the website kahoot either way is great and um if i need to if i have somebody's doing it a lot who's posting i'll just give a little time out as a a fair warning and then i'll i'll take further steps if needed okay uh for those of you who are new to this channel my name is keith barker it's good to meet you virtually anyway um right after this quiz if you have follow-up questions like okay i want to understand this better or or why was that answer that way or whatever it is um we're going to hang out in the the discord server my discord server the link is in this video description right after so if you have further questions i'll be there you can just openly chat with me no worries no problem my goal is to help make your life better by encouraging you and supporting you as far as helping you get your certification and the knowledge behind it and with that we are starting i'm the og of it and this is the august 2021 edition of ipv6 i think there's like 12 questions yep exactly 12. here's question number one what is used for layer 3 to layer 2 discovery in ip version 6. looking for one answer here [Music] [Music] all right what the heck is the question and what the heck what the heck is the answer let me get bring up a pin real quick and uh just verify this pen is working and survey says it's not give me one moment there we go all right so what do you use for layer three layer two discovery part of the this scenario is what does that mean well a layer three is an ip address whether it's ip version four or ip version six if you ever see just ip by itself that's in cisco land that's referring to ip version four and if we're talking about ipv6 they'll usually be written as ipv6 so the question is what is used for layer 3 to layer 2 discovery so if it's layer 3 it'd be an ip address at layer 3 to something at layer two and that's something that layer two is a mac address a layer to address sometimes called a physical address that's unfortunate because it's the layer two but and not layer one but if we wanna do that in ipv4 we'd use arp address resolution protocol which got a few of us there but there is no arp in ipv6 instead and i gave a little bit away here it's neighbor discovery protocol is what's used in ipv6 and it goes something like this a device on the network says gee i'd really like to forward a frame to another device on the same local vlan um but i don't know the layer to address so in ipv4 they would there be an arp with a broadcast associate that but in ipv6 it does a neighbor solicitation and it says hey i know somebody out here owns this layer 3 address and it sends out a solicitation and every in that network hears it it's a multicast and then when the response comes when the person hears who has the address they respond back with a neighbor advertisement and that has the layer two address in it so in ipv6 it's all about neighbor discovery protocol neighbor solicitation router solicitation neighbor advertisement router advertisement and all falls under the umbrella of a neighbor discovery protocol all right now what i did for myself this is primarily just for me i randomize these so although there's 12 questions uh i don't know what exact order they come up in and so for me it's like every every new question is a new question for me too even though i wrote these all right let's see who's in first place legend turtle no wonder you're a legend turtle with almost a thousand points now the faster you answer in the app or on the website for kahoot.it and down here on the bottom right that is the pin number so if you are just getting here that is the proper way to go ahead and respond just go to kahoot.it or use the app on your device and then put in that pin number and there you go the faster you answer correctly the more points you get all right here's question two of twelve multiple select which multicast groups has gig00 joined based on based on this [Music] output [Music] [Music] so [Music] so [Music] okay fantastic we got some on red um let's talk about those just for a moment and then we'll move on so not only are these quizzes fun and good and challenging but they're all also educational with sometimes a brief tutorial after a question if i feel it's needed so on this one gig00 uh because there's no broadcasts in the world of ipv6 they use multicast a lot and so multicast always starts with fff those are the first two characters with ipv6 for multicast so ff you see that that's a multicast and ff02 colon colon one is everybody e-v-e-r-y body everybody who's every interface like you have a computer or a router or something else that has an interface enabled for ipv6 they're all going to join that group so if i need to shout to everybody instead of using a broadcast i can shout and destin to that multicast group and everybody's listening to it so um does your ipv6 printer join that group and listen on that port are they on that ip address yes uh does a server does a router everything everything running ipv6 is going to join that and if you have ipv6 routing enabled meaning i'm willing to route for other devices like a cisco router with ipv6 unicast routing enabled it would also join this and so that way if a device on the network says hmm i wonder what network i'm on it can send a router solicitation message and guess which ip address it can send it to that multicast ipv6 multicast address and because the router is listening on that the router can do a router advertisement ra ra ra ra ra my pv6 router does uh rah-rah-rah lady gaga can't sue me for that because that wasn't even close all right so that's multicast also that's gonna be helpful coming up in other questions also let's just take a moment for hex you gotta love hacks hexadecimal so let's do decimal because this this is points this is like is like a gift of a point or two or a thousand based on the questions that are coming up so with decimal it's let me clear that off clear that off with hex with decimal let's start here on the left we start with zero is that true we start with zero yeah how many how many um how many ducks do you have in your backyard zero that's a number so we start with zero and then we go one two three four five six seven eight nine and then uh oh what do we do we carry the one we start over and then go to ten and then eleven so moving forward so basically we have ten characters to play with zero through nine and then we start you know carrying the one and bring it over with hexadecimal it's actually this is called base ten and with hexadecimal it's base 16. so the 10 there is the 10 characters we're playing with and with hex we start at zero and it's like being in sales you get up every day you start at zero um or if you're making content it's like you get up every day you start at zero make content practice like you've never won and perform like you've never lost that's one of my goals and the harder you work the more consistent you are the more progress you're going to make and i know life is unfair i do we all start at different levels and we're all different backgrounds and experiences but i can tell you this the the more you work and the more consistently you make the effort over time the better off you're going to be compared to doing nothing all right so with hex we're going to start with 0 1 2 3 4 5 6 7 8 9 and then with hexadecimals we have 16 characters to play with so that's 10 0 through 9 then we have a b c d e and f so that would be the equivalent of a decimal uh 10 11 12 13 14 15. if you think you're and if you think i'm doing this just for you i'm also doing it for me because there's other questions coming up they're going to ask us to use this information so there are these 16 characters 0 through f and that's why it's called it's base 16 hexadecimal so each of these also each of these characters in hex represents 4 bits and so if you've been with me in subnet saturdays uh if we take four bits for example zero would be zero zero zero zero in binary and f would be one one one one and e would be one one one zero yep and going down so if somebody said to you for example um yeah well that's so all these so behind the scenes the first f is four ones then the second f is four ones then this is four zeros and then the two would be a zero zero one zero that's the two position just think of these like the lower four bits of uh and i and i ipv4 address and this is the one the ones position the two position the four position the eight position if you're like what the heck is that even about just i would encourage you before you get into ipv6 do yourself a huge favor and learn ipv4 subnetting and i've heard it said a lot like oh ipv explore something it's so hard i can't do it well that's why i created uh my subnet saturdays course on youtube it's free it's 12 videos long i did it over 12 saturdays and it breaks down step by step so if you don't know about ipv4 subnetting or you feel like i can't really do it on my own yet check that out become become an expert at doing it correctly and getting it done every single time and then you can migrate that knowledge and bring it forward to ipv6 all right let's move forward let's see who's in first place after question two it is ah a kind of followed by great hamster great cat two greats red turtle and smooth tiger all right here we go here's question three which multicast group has gig00 joined oh my gosh if you were present for the last answer this might be [Music] [Applause] easy [Music] so [Music] awesome possum we are in awesome work uh and also i had a question somebody has to drop out this will be saved i'm gonna save this exact stream as it is on youtube so they'll do it for me automatically so you can come back tomorrow or day after and it'll just be there on the uh in the playlist of quizzes great great work okay so uh let's take a look at this output just for a moment and you nailed it so this is gonna be quick um it we did a show ipv6 race brief we did the do command because i'm in configuration mode on this ios and so i yeah the do command lets you do a show command without having to drop out and then go back in so i had ipv6 was not enabled on the interface gig zero zero i then enabled it which in the background did a few things including got a link local address but it also joined ff02 colon colon 1 because it is an ipv6 speaking interface and furthermore if we added the command ipv6 unicast routing and made it willing to do ip routing it then would have also joined ff02 colon colon 2. but this is perfect and i will leave the colon colon 5 as a mystery because it's coming up in another question along with the link local addresses as well all right great great work let me take a look at the queue real quick um okay great great here we go uh who's who kind of refuses refuses to let go here's question number four in the ipv6 quiz it's multiple select it is also double points get your adrenaline going which command or commands would create a floating static route for 2001 db82 with a 64-bit mask so in the interface if it's multiple select it's going to show you multiple select then you click on submit if it's just looking for one you just click on the one answer and it's done [Applause] [Music] [Music] and ben thanks for the the comment this counts for cisco ceus right uh fun stuff this is uh free all around but there's no continuing educat education credits for it all right which command or commands would create a floating static route for 2001 db82 colon colon 64. uh great job by most and a great attempt for the rest although if we add these up we had more people that didn't get it than did get it let me just share with you some logic of how i would approach this now we had a office hour i think a week ago saturday that we did a a sample quiz and i got a couple wrong i misread them or i was rushing whatever my excuse was but i got a couple wrong and i want to point out that you don't have to get every question right but it's really important to understand how a technology works and then you can demonstrate an exam and have the best of both worlds so if this is saying what's a floating static route i'm going to change my pen color here a floating static route for this network first of all i'm going to say well this is out that's a 128 bit mask that's not the right route so that's out and then if the floating static route to replace 2001 or to back up 2001 db82 i would find that in the routing table says show ipv6 route there it is right there there's the networking question and that is an ospf learned route based on the the decoded right there the o so oh and it shows us right there the administrative distance which is the default for ospf so it has to be worse than a worse a d it's going to be a floating static crowd in the background than 110 so that means that 109 is out so these two are not even possibilities anymore and then i just gotta look at the right syntax and then this one is the wrong network that's the 2001 zero zero zero 64-bit network so that's out then i can just confirm that that's correct uh that's how i would approach it i would say what's which what is the question what is the facts in that question which of the answers are not possibly true and then narrow it down and so i also would do this i wouldn't just knock mix these and then say oh this answer must be right i would take a look at this answer give myself 30 seconds and say hmm ipv6 route 2001 db82 with the same mask whatever the next top is the next ipv6 address in the path and then the administrative distance that looks good boom check it move forward in the ccna exam it's a one-way trip there's no going back so if you think two questions later oh that was the answer it's okay just laugh about it just smile just don't laugh too loud because the proctor may think what's going on but just just enjoy it you're you're taking the live exam there's gonna be a few questions that it might be you may be missed like i was telling uh someone yesterday in the office hour um about he had a question it was a fantastic question by the way so we talked about it elaborated on it diagrammed it discussed it and then it was that same topic that i was talking about that um that same technology where i took the exam last whenever i took it for ccna and then the the next morning or the next day i was in the shower and i thought oh i got that one wrong here's what they meant yeah because i just and so it took like the whole day later like talking about delayed reaction and that's totally cool that's totally cool you don't have to get 100 right the goal is cisco really wants you to understand the tech and the fundamentals it's going to serve you it's going to serve cisco because it can have technicians but it's really mostly going to serve you by learning how it works and labbing it up and practicing it all right uh ooh kind of is no longer on the top five but that's okay there's plenty of time left co 17 players man i will just drop their combo streak of answers three to three mountain ant is at the top here keep on going everybody glad you're here here's question number five it is multiple select which two commands will auto generate any type of ipv6 address with info based from the mac address the layer to address there's two correct answers on the board good luck [Music] all right well that's interesting i think it's interesting i'll tell you what i think is interesting here and that is that we have a majority people on a correct answer and we have very few people on the other correct answer let's see which two commands auto-generate an ipv6 address from info from the mac address so let's imagine uh let me check out the media real quick what did i show here oh nothing all right so let's imagine that we have a mac address of zero zero one two i'll put a dot there now mac addresses sometimes they're written off two characters they're hexadecimal by the way two characters in a colon or four characters in a period it doesn't really matter depends on the vendor there's no hard and fast rule of doing it i think cisco often represents it with four characters and then three four five six and then seven eight nine ten ten i chuckle because i just got done talking about hex okay one two three four five six seven eight nine 10 11 12 characters so 12 characters and each represents four bits equals a total of 48 bits all right so let's assume this is um let's pick our computer it could be the one you're on right now maybe it's a mobile device maybe use a laptop could be running linux or windows or mac os or android or ios doesn't matter it's got a a layer 2 address associated with the network interface card and so what happens in the background is when ipv6 is creating one of its type with this guy right here this this address is an ipv6 layer 3 address and when we set that up in the background it's also going to create a link local address that's fe80 that's how it starts and that's a link local address so it's still a layer 3 address but for that link local address for the back half of the host portion it's going to take the mac address split it in half it's going to flip the 7th bit and it's going to add f f f e in the middle of it because um this is only 48 bits and we need to have 64 bits for the last host the host portion i've got i've got some great videos on this too so if you're new to this topic and want to look at it check out you know go to my ccna playlist free here on youtube i've got over 200 hours of content if you can get through all that you certainly are a good sport but i would pick out the ones that you want you want that you need i also have a playlist just for the quizzes which is also very very helpful i've been told and i also have a playlist just for the subnet saturdays um but when we have an ipv6 address it's going to create a link local address using this methodology in the background sometimes that logic is referred to as eui uh 64 something something identifier unique extended unique identifier i don't even care uh but eui 64 does the magic of taking the layer two address splitting it down the middle injecting ffv flipping the seventh bit and then that becomes the host address so this is an ipv6 address that would also trigger a link local address to be made using this method this is also an ipv6 oh that one explicitly says use eui 64. and this one right here this is actually creating a link local address so it wouldn't have to automatically create a link local address using this method in the background if that's what you're creating so that one's out for that reason and this oh uh this isn't the right syntax for that so here what happened here is we're specifying the actual full ipv6 address see the colon colon one we're we're not leaving any ambiguity there it's 2021 colon eight colon a whole bunch of zeros and a one in the last uh character position and because we're specifying the entire address there there's no um yeah this syntax would fail because we're not asking to use eui 64 for this address we're actually specifying it out all right so um awesome i'm not going to tell you what this is yet fd because there's another question coming up which uh somebody's going to get some points on for that all right moving on here we go mountain ant still on top question 6 of 12 having a good time feeling confident learning all the time here it is which commands on their own can auto generate an ipv6 address [Music] all right fantastic work so this guy right here is specifying and i an ipv6 globally routable addresses i will give this away globally routable addresses in that first four characters are going to be 2 x x x through 3 x x x so if you see a an address that starts with that that is a internet routable global ipv6 address and if it isn't start with something that's 2x or 3x it isn't maybe it's a unique local address or something else or a link local address but so in this case here if we create this ipv6 address behind the scenes it's creating a link local address the fe-80 address which would be auto-generated that's why this one is true and this isn't the right syntax so that's why that's not true and ipv4 disable i threw in as a distractor an ipv6 enable will actually dynamically generate a couple of ipv6 addresses one for the local network that you're on and also a one for a link local address so that's why those answers are true let's continue on next and oh the great lemur followed by mountain aunt lucky hair smooth tiger and green piranha uh we're halfway through here we go question number seven multiple select which two factors caused gigabit zero slash one to join the group ff02 colon colon five hmm great question looking for two exact answers [Music] so [Music] all right 50 50 on the two correct options fantastic and so if we have a router so let's talk about joining multicast groups if we enable ipv6 on an interface any interface uh could be a mobile device android ios laptop desktop server router whatever switched virtual interface on a multi-layer switch if we enable ipv6 on the interface we join the multicast group of ff02 colon colon 1. think of it like tuning in a radio station or tuning in with a radio listening for a certain frequency so you can hear it because all ipv6 devices need to or want to be able to you know receive requests with neighbor solicitations and so forth they all join ff02 cloning clone one if they are doing routing meaning they're they can act as an ipv6 router for something else meaning not just their own traffic but they can take a packet from somebody else and then forward it they are going to join ff02 colon colon2 if we enable a dynamic routing protocol specifically ospf for ipv6 which is ospf version 3 it's going to be ff02 colon colon 5 which is why this answer is correct and then also if the device the router is a designated router it would also join this group ff02 colon colon six so five if you're an ospf speaker six if you're a designated router so ipv6 is enabled which would be required for ospf to be enabled so those are the two correct answers all right all right here we go and i uh thank you mohammed i do have um quite a few ipv6 videos on my channel too that are i think pretty good pretty direct and enjoy them okay great lemur first place here's question number eight we are getting down to the wire here ipv6 addresses starting with what can be routed internally meaning in an organization but not externally meaning not globally on the global internet [Music] so [Music] good [Music] all right well this deserves a little explanation too i suppose um again i use the same logic in approaching this as any question that required a little bit of thinking about so ipv6 great we're telling ipv6 um they can be routed internally so let's just go ahead and take a look at internally this is a unique local address we're not using them a lot anymore but it's unique local address think of it like an rfc 1918 private ip address for ipv4 like the 10 network 172 16 231 or 192 168 anything we can use those in our company but not readable on the internet so uh that can be routed internally but not externally that's why this is true and all the others are just baloney now that i think about it okay uh why did we get so many people on green here we go let's talk about that for a moment let's say we have two devices let's call a router and another router it could just be an h2 device it doesn't really matter um they are going to have hopefully globally routable addresses on them if we need that traffic to be routed and they are also going to have link local addresses which is the fe 80s so a link local address uh is only good right here on this network segment think of it like in the same vlan so if this guy's fe 80 colon colon one and this one's fv80 colon colon two um the only place those addresses mean something to those two routers are on this network segment so if we wanted to r1 wanted a forward to pack it out here to this host on a different network segment it couldn't use a source address of fe-80 to forward that so fe-80 traffic is not able to be routed internally that's why they call a link local address it's only good for that link where it's at um yeah i've got some videos on that as well so that's why that one is not true that got more than i thought it would alright yay to me my goal my goal is very clear for all of us it's to learn and get better and just never stop never stop never give up just keep on learning and growing and uh pick new things up all the time and just keep that ball rolling it'll change your world it will even you know when i was in uh tech school back in the 80s i went to tech school i learned all about color coding of resistors like on a what's a resistor uh anyway i learned all about stuff that i've never had to use in production but that i did learn many things i did use and so i just learned them and i went through and learned and learned and kept on growing and all that knowledge is going to come in handy and some of it some of you may not use that's true but you don't know which of it you're going to use which you're not going to use so just learn everything they want you to learn and then keep on moving past don't stop once you get your certification all right and great lemur still is in first place way to go here's question 9 of 12 which of the following are multicast addresses the faster you answer correctly the more points you get you don't even need to look at the screen for this uh just to answer the question ah thank you daniel and earlier thank you dan for the super sticker and daniel i will answer your question right after this one [Music] oh my heart is soaring i'm so tickled you didn't the the eye candy there was just eye candy we really didn't need to see this because multicast addresses in ipv6 all start with ff boom boom uh daniel to your question you have your network plus and you registered for the ccna many of the fundamentals regarding network plus that you learn in comptia's network plus you'll be able to parlay and use in the ccna the ccna is is a bigger more recognized uh certification as far as value than the network plus so i would say use what you learned in ccna or in sorry network plus bring it forward get that ccna as a stepping stone and i don't think could be a waste of time it might be easier for you because you might have learned things like subnetting and so forth but cisco ccna wants to know can you apply what you know regarding networking in a cisco environment and so just sprucing it up with some cisco specifics regarding trunking and so forth and routing um i would definitely go for the ccna and use that knowledge and continue on okay great job everybody and first place great lemur here's question 10 of 12 it is double points and here it is what will be the eui 64 host address for this interface gig zero slash two and i'm gonna have you focus on what is the current mac address on gig02 and everything else you don't need to look at good luck everybody [Music] so [Music] [Applause] [Music] [Music] [Music] [Music] so [Music] [Music] [Music] [Applause] so [Music] all right well you know let's talk about that for a moment this is one that doesn't come naturally but it does come with a little bit of practice and i recommend that uh we do that practice right now it won't take very long it's simply going to be a little bit of a repeat so uh this is the this is the mac address that's currently in use and this is the baa same mac address so you can on a cisco device and if on other platforms too that support it you can actually manipulate what you want your mac address to be so on this router on port zero two of the gigabit gig zero two it had from the factory this mac address and that's currently what it's using so if we take that mac address of zero zero e zero and put there so it doesn't look like oreo or anything like that a three c seven and by the way on the exam if you haven't already seen it i've got a short video on how to use the whiteboard tool if you're taking the online exam and that way you can practice with it before you go to the exam and you could use the whiteboard tool for just exactly this a367 sorry a3 c7 and then b four zero three and i would suggest not rushing this uh in the exam you might have a hundred you know hundred ish questions and there might be a time limit there is a time limit but some questions are gonna be straightforward and not require a lot of thinking and others like this are going to require a little bit of thinking and so for a question like subnetting or questions like this where you may have to do a little bit of you know considerations if you take two or three minutes take it take it don't worry about the next question which you may or may not get right worry about this one give yourself a few minutes and take your time now overall you want to keep your eye on the clock and just be aware that you're not taking like two or three minutes on every single question because you'll run it out of time but you know if it takes a few minutes to take them all right so the rule is this we are going to insert f f f e in the middle so there's going to be a dividing line there we're going to insert f ffv so that's pretty that's not so bad however we're also going to flip the seventh bit and i have a video called that flipping bit or something like that um i think i made it because of i think morgan yeah uh one of our moderators in discord was asked we were chatting about it and i said you know let me make a five or six minute video i think on that topic and i made a talk top a video about that that flipping bit and so uh if you take this that oct that nibble those four bits there in binary they look like this zero zero zero zero that's the first one and we'll put a colon there uh i'm not gonna put a coil in there because that's not appropriate so then i'll put a space and then for this zero but zero zero zero zero and then the rest are just those characters so if we're gonna flip the seventh bit it would change from this to uh four five six seven right there maybe like that so that's in binary and then if you take with that seventh bit flipped uh these four bits would be zero that's no ones no twos no fours no eights and here we have no ones we have a two no fours no eights that'd be a two there and so for those first two characters we'd have 0 2 then e 0 put a point there just to separate it then a 3 then we're going to take the ffe and inject that f f ff that's an f period f e that's the other half there and then c7 a period and then the b four zero three which i'm hoping is an answer and then i left off the leading zero because you don't have to put a leading inside that grouping you don't have to put of an ipv6 address you don't have to add that additional one so i'll put those colons in there which they should be so zero two e zero a 3 f f f e c 7 b 4 0 3 and we now have our modified eui 64 dynamically created host address that's a parlor trick this is a parlor trick in the real world or you have to do that [Laughter] probably not just to be honest with you i can't ever think of a time when i had to say gee i wonder which host this is and i think i have to calculate its uh eui 64 host address never however understanding how it works once you do it uh it's the cisco wants you to know it it's in the blueprint as far as you know host addresses for ipv6 and this is definitely in that category in the blueprint so if you learn how to do it it might take i don't know 30 minutes you own it practice it a few times and then demonstrate that you can do it and then if they ask you again in checkpoint or they ask you again in hp or palo alto or something else you know how to do it it's gonna be the same with any vendor as far as the uh eui 64. all right let me take a look at the queue all right all right and i think we're good to go let me go ahead and yeah let's move on uh we have just two more questions great lemur is at the top at this moment but five players have reached an answer streak of four in a row and i'm so glad you're all here thank you for spending a few minutes with me today this one is double points which first eight bits could be used for a globally routable ipv6 address and tyler c i'm talking to you so glad you're here and everybody [Music] so [Music] all right let me let me share with you how i would approach this question i would first what is this question really asking it's really asking do we know our ipv6 addresses and so i i think what i do is if i said if it said globally readable address i'd say well keith just said i just said uh it's from 2xxxx through 3xxxx x means you can fill in any hexadecimal character in that space and it's fine so 2000 through 3ff and that is a global writable address so if you look at a two or a three for the first four bits a two would be this zero zero one zero and a three for that first character i'll put an arrow there and a three would be uh zero zero one one you with me that's so that one's position two positions three so uh it's it's gotta have as the first four bits either zero zero one zero or zero zero one one and keith just said these are all multicast ff well the all ones is an f so if they start with f that's not a globally readable dress that's the only possible option who took advantage of that i want to see because that was worth quite a few points especially if you nailed it quickly and great lemur holding strong mountain is back red turtle awesome lemming kind dove we have one last question this is it and uh right afterwards we'll hang out in the discord server if you have any other questions which command will hard code an ipv6 link local address a layer 3 address for gig 0 0. i just want to remind you that a link local address is still an ipv6 layer 3 address [Music] [Music] [Music] so [Music] all right the red answer is correct because that's the right syntax for it and all the others are whack-a-doodle or wrong um so one way of getting better with ipv6 addresses in general is to practice with them and lab it up packet tracer which is free from cisco is an amazing and strongly recommended tool that uses very little power because it runs as an app on your computer it's free just go to netacad.com uh sign up for a free account at netacad.com download packet tracer and then i've got like 30 plus labs i know uh other people on youtube um jeremy's it labs and his jeremy's package jeremy's it labs jeremy's package tracer labs oh now let's put a link there he's got a whole bunch of really good videos david bomble has good videos and good labs uh lots and lots of uh i'm sure chuck keith has some uh really great labs or will be so wherever you want to practice or however you want to practice do the practice that's going to help let's see who's on the podium and then right after this quiz i'll say goodbye here and then if you want to hang out in the discord server i'll be in the ccna voice chat room it's just a room where everybody can talk you can ask questions if you have any questions about any of these quizzes or if you want to ask me a question personally and you could make it to office hour on saturdays at 10 a.m pacific please feel free to join us right after this live quiz all right here is the podium [Applause] [Music] [Applause] all right congratulations and uh jastrix is asking how many players in the quiz today i'd have to look at my other console for that we have about 163 people who are streaming and i think close to 80 or 90 who are actually playing the game which is fine and uh if you are getting some value out of this let other people know spread the word i'm here every saturday on the discord server for free and also here on the youtube channel every streaming every sunday at 11am with a quiz like this one also no charge for that i'm happy to help you in your journey in building your skills it can and will make a difference for you and my goal is to help you in any way that i can with that learning with the motivation and get it done all right also if you're if you're looking at the live stream right now and interested and got value out of this or want to join us again uh schedule your calendar just put on your calendar every sunday 11 a.m pacific join us here and also if you like the video or if you got value out of it don't don't hesitate to like because that just gives other people a clue that hey this might be something that you could use as well all right oh daniel thank you for that comment all right and also let me get a little bit of feedback from you oh before the feedback these were our oh not not so some room for improvement this out of the 12 questions we had nine of those questions were fairly difficult for most people so the very toughest one was the wish two command solder generate an ipv6 address we had three percent correct on that and then uh the other eight here were these as well all right well i'm i also wanna think in the discord server yesterday in the office hour for the recommendation from the group about hey let's do an ipv6 quiz again and um i don't know when ipv6 is going to be the dominant protocol on the planet i don't i was told that 10 years ago that it was going to be i mean ipv6 has been out for more than two decades or very close to two decades that's a long time and it keeps you know it's something you need to know something you need to be aware of something you need to be familiar with how to configure and work with it and when the time comes when you need that skill regarding ipv6 if you have it that'll be valuable to you as well all right let me send you out with some some love music here and we'll be in the discord server if you want to follow up with the chat again thank you very very much for your participation today and if i can help you and with motivation or with answering a technical question or giving you insight on how technology works regarding ccna i'm here for you thanks everybody and i'll see those who are going to be in the discord server i'll see you there in a moment or i'll see you in the next live event whenever that is take care and again thanks everybody bye-bye [Music] [Music] [Music] [Music] [Music] you

Channel: Keith Barker

Views: 3,337

Keywords: ccna, cisco, 200-301, Cisco CCNA, Cisco Certification, ogit, Keith Barker, ipv6, ipv6 quiz, routing and switching, ip address, networking fundamentals, ccna routing and switching, ipv6 ccna, ipv6 address types

Id: npybyUtZlU0

Length: 64min 25sec (3865 seconds)

Published: Sun Aug 01 2021