Free CCNA | OSPF Part 3 | Day 28 | CCNA 200-301 Complete Course

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In Day 28 you will learn about OSPF, Open Shortest Path First. OSPF is a link-state dynamic routing protocol, as opposed to the distance vector routing protocols RIP and EIGRP. You will study OSPF network types, OSPF neighbor/adjacency requirements, and OSPF LSA types.
In this FREE and COMPLETE CCNA 200-301 course you will find lecture videos covering all topics in Cisco official exam topics list, end-of-video quizzes to test your knowledge, flashcards to review, and practice labs to get hands-on experience.
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0:00 Introduction
0:54 Things we'll cover
1:40 Loopback Interfaces
3:32 OSPF Network Types
5:07 Broadcast network type
7:38 Broadcast - DR/BDR Election
9:17 Broadcast - OSPF Priority
15:09 Point-to-Point network type
16:19 Serial Interfaces
20:37 Serial Interfaces summary
21:24 Point-to-Point (cont.)
21:47 Manually configure OSPF Network type
22:44 Broadcast vs Point-to-Point chart
23:13 OSPF Neighbor Requirements
32:57 OSPF LSA Types
35:57 Things we covered
37:20 Quiz 1
38:09 Quiz 2
39:04 Quiz 3
40:01 Quiz 4
40:53 Quiz 5
42:58 Boson ExSim
#cisco #CCNA

[@maxwellchessdotcom6952]

Welcome to Jeremy's IT lab. Jeremy hopes that you will stick around till the end of the quiz so he can show you an Ex-Sim Max bonus question. Jeremy used Ex-Sim Max to pass his CCNA on the first try. The picture on the upper right is Jeremy leaving the exam building.

[@JeremysITLab]

Lol, love your comments!

[@lennoxridge1609]

You probably dont care at all but does any of you know a tool to log back into an instagram account..? I was dumb forgot the login password. I would appreciate any help you can give me.

[@kalMHe]

Hahaha

[@chrisfoster3772]

@@lennoxridge1609 hey Lennox! When you go to log in, there will be a button under the password field that reads "forgot password" If you click that button, it will prompt you to put in some info and otherwise instruct you on how to reset your password Thanks

[@osamashtawi9651]

I dont understand

[@abdul_moiz_7]

Thank you so much for your efforts Jeremy. You made OSPF easy to learn by your step by step guide on the process. So far I am learning from your every video looking forward to finish this course soon. Thanks again!

[@ranjanadissanayaka5390]

Hey, Jermy thanks for this video. I had to watch this a couple of times. The flash cards really helped me to sink all the facts in to my memory. 😀

[@wwolfram33]

Excellent OSPF instruction Jeremy. Good job!

[@rotrose7531]

Thank you always for these amazing networking tutorials.

[@mohameddirir5324]

With no disrespect to other Courses altough i bought them but you are my main resource to pass the CCNA

[@-b777ljq3]

what a wonderful lecture! many thanks to Jeremy.

[@nicktucker3437]

Thank you for the great lesson! 23:12 additionally point to multipoint ospf network type also uses hello 30s dead 120s, that used to be "gotcha" thing ccie proctors would try when inserting faults into your network or being asked to make timers be certain values without using the "ip ospf network" command. 31:52 changing the network type changed the default hello/dead timers, these can be changed back to match to make it kind of work despite having a different network type configured.

[@zuxuanni7818]

Finally, I caught up with all your CCNA videos today. Now, I cannot wait to watch your new video every Sunday like when I was waiting for CBS or TNT shows a couple of years ago.

[@JeremysITLab]

Haha I love your comment! Glad to hear it ;)

[@zuxuanni7818]

@@JeremysITLab Thank you. I will watch your Packet Tracers labs as trailers while waiting.

[@konefine3626]

Hello Jeremy, I was off for a while, just came back to the videos, in fact big thanks to you for the ospf cos I have been thinking it's a nightmare topic but with your teaching , it is so easy just need only practice and flashcard, thank you so much

[@JeremysITLab]

Welcome back! Glad to hear that :) Thanks for being a long time supporter!

[@mkhlafa6809]

Big THANK YOU!! Jeremy for the wonderful explanation. Great effort! Appreciate it

[@JeremysITLab]

Thank you :)

[@AggelosDRZ]

watched OSPF all parts x2 times another day in the box. Thanks Jeremy.

[@FIREfreezerPR]

You are an absolute God send my friend. IDK why I love networking so much, but I'm an uber nerd for it.

[@ngtech2421]

Great study material as usual. I was looking for a way to start a CCNA certification and I stumbled up on this great series MONTHS AGO and never looked back. Thanks Jeremy

[@JeremysITLab]

Thanks, I'm glad you like it :)

[@glenntembo2693]

JJ you the man, thanks bruh. Def review waiting for practical Sunday. God bless

[@JeremysITLab]

Thanks Glenn, always glad to see your comments!

[@gabb7682]

This is such an amazing content. I took other ccna courses and they didn't come close this level of details let alone the quizz at the end. Overwealing but fantastic as you give us the best chances to pass our ccna

[@safayethossain4485]

Great explanation. thank you jeremy, thank you so much !

[@StevesITConsult]

I've always liked your videos. Thanks for this one.

[@JeremysITLab]

Thanks, Stephen :)

[@josephnduati1214]

This man must be protected at all costs! :-) . Thanks a ton!

[@asiselwa3506]

honestly, I have many trainers and teachers in various IT subjects. now Cisco training courses in Vienna. I also learn (must ) via your channel through you. Because seriously, you transfer your know-how really well and efficiently. and learning cisco with you makes a lot of fun. greeting from Vienna Austria

[@JeremysITLab]

Thank you for your comment, I'm glad you like the course :)

[@nicholassattaur9964]

Great content as always Jeremy! Thank you

[@JeremysITLab]

Thanks Nicholas!

[@pad8941]

Keep it up jeremy. It is good video. Your video is easy to understand. Love to hear your update

[@JeremysITLab]

Thank you, I'm glad to hear that :)

[@muhannadak8087]

Great explanation! Can't wait for the lab video.

[@JeremysITLab]

Thank you! The lab video will be the last OSPF video for the course ;)

[@youtuber-jf1rx]

Sending Love from India.. Really awsum.. I have started your course And nothing more required than this.. So grateful..

[@JeremysITLab]

Thank you! Glad you like the course :)

[@jamesharris1613]

That Boson ExSim question was a good one. Adjacent vs Neighbor tripped me up good.

[@sirishchekutty6873]

I choose this video to comment because this is where I wanted to give up. But it got easy once I pushed through. I got my CCNA today, and all thanks to you jeremy. Every time I opened a new video I spent few minutes reading comments of people thanking you for helping them pass their CCNA, I knew I would write my own comment soon and here it is. My study for CCNA was 6 weeks and I only used your videos. I did not use any other study materials, It was just your videos day 1 to day 63 + Boson. I barely finished all your labs (maybe 25% labs) and did few flashcards (only hard topics). I would suggest anyone that is preparing, that you always recap what you study, in portions. That is what helped me retain all of this in short time. I used Boson to make sure I filled my knowledge gaps. I would 10/10 recommend Boson, without it I would not be able to fill my knowledge gaps. Thank you Jeremy!

[@JeremysITLab]

Congrats on passing the CCNA, Sirish! Well done :) So glad to hear my videos helped. 6 weeks is very fast - you must have studied very hard! And thanks for the tip - I appreciate it

[@sirishchekutty6873]

@@JeremysITLab yes, it was faced paced. But i knew i got do it because of how easy your explanation was to understand. For me it was two videos a day on weekdays and 3 videos every sat and sun( day 1&2 3&4 5&6 etc) So that was 16 videos a week. Doing this I finished the playlist in 4 weeks. Last 2 weeks was my prep. Used boson only the last week of prep. I could do this only because of the hardwork you put into your videos. There are very few courses that have day wise playlist. You are a good teacher wish you all the best with whatever you are trying to achieve next. 🤝🏼

[@computeraidedworld1148]

Man I needed to hear this. I take it at the end of the month and just feel so dumb sometimes.

[@mrnobody3180]

@@sirishchekutty6873 Just wondering... Do you have a full time job while studying for the CCNA? Because 6 weeks is very fast considering how overwhelming this course is.

[@sirishchekutty6873]

@@mrnobody3180 yes. I. Work 9-5

[@nshul881]

Jeremy is a LifeMaker. Hatsoff man

[@imjinaah]

0:01 Introduction 0:56 Things we'll cover 1:41 Loopback Interfaces 3:33 OSPF Network Types 5:09 Broadcast 7:40 DR/BDR Election 9:17 Change OSPF Priority 15:10 Point-to-Point 16:21 Serial Interfaces Overview 20:43 Summary 21:25 Point-to-Point continuation 22:45 Quick Review Chart 23:13 OSPF Neighbor Requirements 32:58 OSPF LSA Types 36:18 Things we covered 37:21 Quiz!

[@JeremysITLab]

Cheers! I gotta go back and add your other timestamps to the older videos ;)

[@jibransidiqui3115]

Thank you Jermy for these amazing lectures. Last night I attempted CCNA OSPF module exam without watching the final lecture, and I got a score of 90%. Can you believe it?

[@Alberto.81]

Hi Jeremy. Thank you for another great lesson! On the last boson question I wrongly guessed E

[@JeremysITLab]

No worries about the wrong answer! The Boson questions are tough, and a good opportunity to learn.

[@cdialpha]

Just FYI to those prepping for the exam, I saw a lot of questions regarding non-braodcast and other OSPF types. Non-broadcast and point-to-multipoint Non-Broadcast networks do not allow multicast packets. To configure OSPF to send unicast updates, you must configure neighbor routers with the neighbor command (like jeremy says in the videos). Broadcast & P2P allow multicast packets so manual configuration of neighbor routers with the neighbor command is not needed.

[@pedrohartman5973]

Did you take the exam...and did you pass?

[@cdialpha]

@@pedrohartman5973 barely. Was pretty brutal tbh. Jeremy’s course is definitely the absolute minimum you need to know.

[@pedrohartman5973]

@@cdialpha Thanks! Did you use the anki cards?

[@cdialpha]

@@pedrohartman5973 not a ton. Maybe for the first few sections. I thought they were a bit too granular. Like you don’t need to memorize broadcast addresses… but you do gotta be able to recognize them. (Hope that makes sense)

[@pedrohartman5973]

@@cdialpha It does. Thank you. Currently on day 32...!

[@akashabutt266]

jeremy thanks for spreading your knowledge

[@JeremysITLab]

Thanks for watching and leaving a comment :)

[@abdiyyonis9746]

Thanks for your clear explanation

[@umairm8595]

Thank you Jeremy this is very helpful.

[@JeremysITLab]

Thanks Umair :)

[@ahmadullahazizi3038]

please share the videos more often than once a week, i am following your course and each time i cant wait to see the new video thank you

[@JeremysITLab]

Sorry, I don't have enough time to make videos more frequently.

[@ahmadullahazizi3038]

Jeremy's IT Lab its ok love u 👍🏻

[@kogerugaming]

"You were my drother Anakin!" "Stay at the ship R2"

[@aleksandr8179]

I am watching your video from Russia. It is a very good job. Thank you!

[@JeremysITLab]

Thank you Alex!

[@lkdipeolu]

Excellent tuition. Thanks

[@JeremysITLab]

Thanks Lanre!

[@ricateano4848]

jeremy i hope you can also discuss about BGP :)

[@RyanxDunn]

I always wondered how a router could establish more than 1 neighbour relationship on a link when using a broadcast network type, but I don't think I ever considered that routers might connect to one another using a switch, and now it makes total sense.

[@youssefsalama663]

Thanks Jeremy!

[@klkiley2922]

Wonderful content. The great Keith Barker even recommended you!

[@JeremysITLab]

Wow, that's an honor!

[@kevingasore8599]

Great teacher. Mistake on 19:47, the subnet for R1 is /30 so 255.255.255.252 not /24. Thanks for helping me understand these deep topics for the ccna

[@tankado707]

Jeremy thank you so much , Iam studying your course man , great job, one love from Angola (África).

[@JeremysITLab]

Thank you, Fernando :)

[@user-wr2lm8qh2t]

Thank you for your helpful lessons

[@JeremysITLab]

Thanks for watching :)

[@joksyzm]

Amazing job!

[@JeremysITLab]

Thank you :)

[@rr0ber4]

This lecture would make Dijkstra jealous, keep up the great work!

[@realme4746]

mehn you're amazing. some good work

[@keatonbennett7484]

Hi Jeremy, question about Quiz 2, in the lecture you stated that in the broadcast network type routers only form full adjacencies with the BDR and DR and so being that R1 is a DR is that the reason why R1 has 4 adjacent neighbors? If R1 was a DRother that is when it would only have 2 full adjacencies and 3 regular neighbors correct?

[@aloshim]

DRother interfaces only will form a full adjacencies with DR and BDR. The Result is going = Full State. DRother interfaces will not perfrom full adjacencies with another interfaces which is DRother. They both stuck at 2-way state with each other they never reach the full state. So in the quiz is saying that DR is activated on the Interface and we have 5 Routers included our Router. So we have our Router with DR and there are 4 Routers. - one should be BDR 1x - and the rest DRother. 3x Total = 4x So since DR or BDR perfrom adjcacencies with everyone so we have the Total of Routers = 4 Routers are going to be fully adjacent with our Router. at minute 12:20 above he said: 'in the broadcast network type, routers will only form a full OSPF adjacency with the DR and BDR of the segment. ' He meant either possibility 1: BDR and DRother are able to form adjacency with DR. OR DR and DRother are able to for adjacency with the BDR. _____________________________ I tought at first time as well that DR is going to only perform with BDR. I hope this could help because i misunderstood what he said as well.

[@eng_muud]

since R1'G0/0 is DR it will make full adjacencies to its all neighbors (BDR and DRotherS )

[@srinidhihs921]

Regarding Serial interface in cisco packet traces there is an separate DCE DTE Connection wire which we have only option to Select the router ifor DCE and DTE

[@jayaramchapagain1690]

Thanks a lot jeremy ❤

[@kashifafridi9532]

i have increased my CCNA skills after watching your videos. very good content and method of teaching. Thank You.

[@JeremysITLab]

Thanks, glad to hear it!

[@edwardsnowden3451]

Thank u Jeremy ❤️❤️❤️

[@touchmoney6741]

thanks bro, good stuff!

[@JeremysITLab]

Thanks :)

[@winsmoyo2353]

excellent teacher

[@jomokingpin3816]

Thanks for the help

[@somethingnew3338]

thanks. I am waiting for videos with DNA Center, WLC &APs.

[@JeremysITLab]

Wireless will be coming later in the course!

[@MiguelHernandez-zd7kr]

To me, OSPF always looks messy and troublesome when seeing in a big picture. But you've divided it into well explained parts. Big thank you for all this lessons!

[@JeremysITLab]

Thanks Miguel, I'm glad to hear that :) OSPF is an important part of the CCNA!

[@Aaron-sy5yx]

My head is going to explode LMAO

[@JeremysITLab]

Sounds like a good time to take a break! Review some topics you've already learned, do some labs, etc ;)

[@09alexandr]

Jeremy, I really appreciate for your efforts! You have a talent to bring up some not clear points in quite simple way. Thank you sir!

[@JeremysITLab]

Thank you Alex, I'm glad to hear that :)

[@stardustmotion]

this boson ex-sim-max question review comes with a a decent lecture ngl

[@amarakanthannavaratnam4264]

Thanks a lot Jeremy

[@JeremysITLab]

Thanks for watching :)

[@meddet8336]

Thanks a lot for these high quality materials. Question : In which Ospf area all routes (external, local and inter-domain) exist in the routing table ? Standard Stub totally stubby Backbone I think it's the backbone area

[@Marius-jp4pg]

Hello Jeremy on 23:02 you misspelled in the Broadcast OSPF Network Type BDR, you have written DBR, btw love u and ur content keep it up:)

[@katungukaemmanuel]

I am following this with a lot of passion from Uganda. very appreciative sir. Is this the last video for CCNA

[@JeremysITLab]

Thank you! It's not the last, the course is about 60% finished at the moment, I'll release a new video every week.

[@notunknown8275]

thank you for this great video :)

[@JeremysITLab]

My pleasure :)

[@Quick.Adviser]

Ccna is complicated but its worth of struggle little thanks For teaching us you deserve a Ferrari as a gift

[@atar8781]

thanks a lot for your knowledge sharing.

[@JeremysITLab]

Thank you for watching :)

[@greeneyes867]

thanks a lot Jeremy !!!

[@JeremysITLab]

Thanks for watching, Youssef :)

[@developer4613]

Thank you Jeremy Sir 🙏🙏🙏

[@JeremysITLab]

Thanks for watching :)

[@srinivasanv4643]

Hi Jeremy, just a quick confirmation. All OSPF adjacent routers are OSPF neighbors but all OSPF neighbors are not adjacent right. I mean, in the 192.168.2.0/29 subnet used in the video, the DR and BDR are OSPF neighbors and adjacent but the DROther routers are neighbors but not adjacent. Right? Edit: Got this cleared from the explanation at the end. Precise and clear as always, Jeremy. Kudos 🙂

[@user-gw2gw6bb2e]

Jeremy u r the bomb

[@sudipsen6376]

From Day 1 to Day 28. Still Lot to go.

[@alexscarlett4546]

Out of curiosity how many more videos do you have planned for this series? they have been an amazing help.

[@JeremysITLab]

I think it will be a about 50 'day's in total.

[@monetka79]

Yeeeees, finely, I was waiting for this video! Thank you so much, Jeremy!

[@JeremysITLab]

Thanks Alyona :)

[@aruizsilva]

Thanks!

[@arifsiddiqui941]

Any videos on Meraki fire wall and switches

[@hasan_1888]

Thank You Jeremy. Q1: In real life, which OSPF network types are being used nowadays? Q2 Are ospf broadcast networks good in real life?

[@SakshiKumari-lc5wb]

Everyone please watch ads and support. Love from India.❤️

[@JeremysITLab]

Thank you Sakshi, I appreciate that :)

[@kenlynn8857]

Thanks

[@user-cy8gs6ui6n]

Thank you

[@JeremysITLab]

Thanks for watching and leaving a comment :)

[@gerryvalenzuela9158]

very well explained, what would be the most common Clock rate use in real life serial links and encapsulation?

[@JeremysITLab]

Not sure, I've never used a serial connection in my job. It's (almost) all fiber-optic these days.

[@jingtingong6177]

Hi Jeremy, in 27:08, if not mistaken, i remember the router id is same as loopback ip? why this router id is same as interface ip? and also there is different area configured also can active the ospf?

[@christaylor4703]

When you use the 'Default information originate' command on R4, will that automagically make that router the ASBR (if there is a default route to an external network)? Thanks for the series, it's awesome

[@JeremysITLab]

Yep, because it's advertising destinations from outside of the OSPF network into it.

[@suan_tech2019]

Thankyou

[@luisarturobarcogonzalez50]

Hello Jeremy , as you lectured us many videos ago, the minimum size of an IP packet is 46 bytes. When you entered the IP mtu command , the range is from 68 to 1500. That means that the lowest value of the maximum transmission unit can be 68,69,70....... Up to 1500. Is that right?

[@nedatuaconta2431]

tysm

[@drazen.i]

Just a reminder - The command "shutdown" for shutting down the OSPF process doesn't exist in Packet Tracer.

[@dannyget9579]

Thank you so much, Jeremy. I have one question, on the requirement to be neighbors it is stated that the interfaces should be in the same subnet but the routers in the diagram like R1 and R4 or R5 are not in the same subnet but share the same LSDB. Can you explain this? Thank you again for your kindness.

[@JeremysITLab]

R1 and R4/R5 aren't OSPF neighbors, so no need to be in the same subnet. R1's only OSPF neighbor is R2.

[@MrDobarDrug]

To Be Honest, Reading JCNP - Level Channel Members Was Very Cute And Originally! You Should Do This Again, Stay Originally - Be Unique!

[@JeremysITLab]

I already recorded the next few videos without reading all of the names, but okay I'll start doing it again ;)

[@talalakbarlaghari]

Hi Jeremy: @ 9:43 : if OSPF interface priority = 0, can we say router will not participate in DR/BDR election only on that interface /subnet or it will have global effect ?

[@JeremysITLab]

Just that interface, the OSPF priority setting is local to the interface you configure it on.

[@alialiraqi2664]

Hello Jeremey, I have a question please it is not related directly to the CCNA but do you maybe know why at schools the teachers make the IT subjects complicated? I hope I can get an answer from a teacher himself. Thanks in forwarding for answering. AND 100000000000000000 thanks for the free series of CCNA.

[@salehhafsi1747]

thank you so much jeremy . i have a question 24:06 the connection is p2p you said it does not need DR/BDR , but it appears that it exists ,Or is not need just in serial connection ? thank you in advance .

[@JeremysITLab]

At 24:06 the connection between R1 and R2 is a broadcast OSPF network, because that's the default for Ethernet connections. So, there is a DR/BDR election.

[@salehhafsi1747]

@@JeremysITLab I get it thank you for help . god bless you

[@prodigalSon3]

@JeremyITLab - Love the vids, ive been using them along with the Official Cert Guide. OSPF is one of those topics where I needed you my man...many thanks 🙏🙏 That last question though, kind of doesn't make complete sense to me. You said that the correct answer for "Changing the OSPF priority, in order to make R1 the DR by issuing the " was D and F. I get option D: "R1 will become the BDR", but I don't understand option F: "the DR and BDR of the network are unchanged". Didn't the DR/BDR status just change like you stated in option D? I hope that made sense lol. Be well and do your thang my man! I'll be sitting the CCNA 200-301 in a couple weeks.

[@abdulsaabirhaaji9876]

First Each option stands alone. For option F, "the DR and BDR of the network are unchanged" means we haven't used the "clear ip ospf process" command. Changing the priority of an OSPF router doesn't have an immediate effect so that makes F to be True. In simpler terms, each answer choice doesn't rely on the others. So, option F is true because altering the priority of R1's g0/0 interface won't do anything unless you use "clear ip ospf process." Then, the BDR becomes the DR, a new election for who is going to be new BDR will be made, and in that election, R1 wins due to its higher priority (100) compared to the default OSPF router priority (1).

[@prodigalSon3]

Ohhh...I get it lol. Makes perfect sense now knowing that Each Option is 'stand alone'. Thanks for clearing this OSPF question up for me. I honestly thought I missed a section of the Lesson. But 'clear ip ospf process' has to be issued throughout the Network on each device for a new election to occur. How would you go about 'resetting' the ospf process on the entire network? Maybe...power down all Routers...then power them on one-by-one, starting with your choice for DR, then activating ospf. Followed by powering on your choice for BDR and activating ospf on that device as well? @@abdulsaabirhaaji9876

[@unlimitedpowertv8048]

Hey Jeremy, in the network diagram that you are showing at 21:44 the output of the command show ip ospf neighbor does not match the network diagram. It says that R2 is in a 2WAY/DROTHER state with R3 and in a FULL/BDR state with R5 but R5 is a DROther too. Plus R2 is a BDR which means that it should form FULL adjacencies with the DRother routers. Thank you.

[@JeremysITLab]

Yeah at that point I'm focusing on the serial link so I didn't really pay attention to the ethernet link.

[@AndrewLotwin]

That was my question also, so thank you for catching that, unlimitedpowertv8048. Thank you for confirming, Jeremy. As a one time CCENT, I am re-certifying for CCNA. You are breaking it all really well, Jeremey. The CCNA sub-Reddit forum recommended your courses, and I'm glad I listened.

[@AndrewLotwin]

*...are breaking it all DOWN really well, JEREMY. (Please excuse the typos.)

[@LowerYourExpectationsPleb]

Hi Jeremy, Do I need to enter some kind of promo code for the two Boson software, or is it included already if I get both? Thanks!

[@JeremysITLab]

You don't need to enter a code, if you buy the kit that includes both it's cheaper than buying both separately.

[@dilshodismatov5253]

Hi Jeremy. Can you advise me what CCNA book should that matches with your videos?

[@JeremysITLab]

I don't think there are any books that match my videos, but I like Wendell Odom's books.

[@chao902]

Hello Jeremy.. Nice video.. i'm new on networking, i'm planning to add a new cisco 2960x on existing stacks. The switch i will add is not new. Do i need to reset it to factory default before i add to the stack?i know this is out of the topic.i appreciate your help.thanks..

[@JeremysITLab]

I'm not sure if it's needed, but I'd factory reset it first to be safe. Better to search through Cisco documentation for a proper answer.

[@robertsoman840]

Great content Jeremy!! Really understanding things smoothly here...BUT quiz #5 you said when you clear process on R4, R1 will become the new BDR (which is a change) and R3 will become the new DR (which is also a change)...so how is answer (f) correct? (which states that DR and BDR are unchanged)

[@JeremysITLab]

F) doesn’t say you clear the OSPF profess.

[@johnconnor9787]

Hi Jeremy! My question is a little bit out of topic, but please, could you help with it Could you please help with one question related to NAT configuration. Should we configure our OUTSIDE port on a router as a default route (0.0.0.0 0.0.0.0 next_hop_ip)? Otherwise how the router will know that it should use NAT

[@JeremysITLab]

How you configure it depends on the type of NAT, but I don't think a default route is necessary. Wait for my NAT videos for my explanation!