/r/ccna

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A gathering place for CCNA's, or those looking to obtain their CCNA!

A gathering place for CCNA's, or those looking to obtain their CCNA!

Rules


1) No posting of illegal materials (torrents, stolen PDFs, etc)


2) No posting of "braindumps" (this includes 9tut)


3) Be courteous and helpful


4) Do not ask for others to do your labs for you, or solicit payment for labs to be done for you.


5) This sub is not intended for tech support questions, you would be better off asking such questions in /r/networking or /r/cisco since this sub is by definition a novice community that is trying to learn networking fundamentals.


6) Make sure you are not violating the Cisco testing NDA (Non Disclosure Agreement)! Do not post questions you saw on the exam. Proof Cisco bans known cheaters!


7) Limited Self-Promotion permitted only from contributing members to the Subreddit, if it's in good taste and not excessive. [Formal Rules]

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NOTE: The "Reddit Cisco Ring", its associates, subreddits, and creator "mechman991" are not endorsed, sponsored, or officially associated with Cisco Systems Inc. All opinions stated are those of the poster only, and do not reflect the opinion of Cisco Systems Inc., or its affiliates.

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102,579 Subscribers

1

Alternate ping packets dropping?

Going back to do earlier JIT land so I don't forget and redid Day 11 lab 2 on troubleshooting static routes. I did it fine when I first came across it, now alternate packets are dropping from both PC's, any idea why? It'd look like this:

Reply from 192.168.3.1: bytes=32 time=1ms TTL=125

Request timed out

Reply from 192.168.3.1: bytes=32 time=1ms TTL=125
Request timed out

2 Comments
2024/04/14
22:59 UTC

11

Just got my CCNA

I am so thrilled that after 5 months of hard work I was able to crack this exam!!

Could someone please tell me how could I get the pdf of my certification?

7 Comments
2024/04/14
22:26 UTC

1

Test Date Set

Well on Friday, I purchased my test voucher for the CCNA. 6/29/24 is the date. I’ve been using Jeremy’s IT Labs, and Keith Barker. I’ve completed a third of the Jeremy It’s Lectures/Labs and I’m feeling pretty confident. Labbing, at least from what I have been told is essential. I will be doing so all the way up to the last week of my test. I’m excited about passing and progressing towards my goal of becoming a Network Engineer!

1 Comment
2024/04/14
17:45 UTC

2

What virtual labs are you using to prepare

Ive been studying and preparing to take the CCNA hopefully this summer. I have a small lab at home but wanting to get more hands on with more equipment. What virtual labs are/have you used to prepare for the CCNA to get more in depth hands on experience

I’m currently on my second round of Jeremy’s IT Lab also did Network Chucks CCNA course and halfway through the Cisco CCNA book series on the CCNA

1 Comment
2024/04/14
14:44 UTC

9

Probably foregoing my CCNA journey

I think I’ve decided to call it. I’m enjoying learning about networks and I do think I’ll continue to read the books in my spare time and get a better idea of the basics, but I don’t think CCNA is for me anymore. I’m currently working as an IAM Engineer making $82K and really don’t ever touch networks unless I’m putting in a firewall change request for a NOC contractor to do or MAYBE configuring a CIDR block with an AWS security group. Definitely will never have any need for hardcore subnetting, design, routing and switching, etc. For a while I thought I wanted to transition into a network security role, but in order to do that realistically most roles expect 3-5+ years of network engineering experience…just not sure if I’m willing to make a lateral move and likely take a pay cut in order to build that experience up in a new role. Might just be better to stay in IAM and get better there. So I think I’m going to focus on something like CySa+, CASP+, CISA, or another more Cybersecurity focused learning path. Probably easier and more realistic to just build from my current experience than trying to make a lateral move in this awful job market, I fear.

AmI being reasonable in this logic?

7 Comments
2024/04/14
13:22 UTC

8

Help selecting the right career path after CCNA. Currently AD military.

I get out the military next year and not sure which career path I should take. It’s either get my CCNP and keep pushing traditional networking or don’t get my CCNP and start pursuing cloud certs and try to shift my career towards cloud. (Already have Sec+) I like networking but cloud seems fun. 15+ years from now, i’m scared i’ll get really bored of traditional networking.

5 yrs - Helpdesk/PC Tech (Pre-Military) 5 yrs - Networking

Any input would be nice. I’ll listen to all advice.

Edit: Not sure if this is an influence or not, but i do have my TS clearance also.

14 Comments
2024/04/14
12:17 UTC

39

CCNA Study Guide - A (?Definitive) Guide

(Apologies for all the ongoing edits, this post was written couple of days ago, the same day I passed the exam, and ever since submitting the previous post, it has been pending for Admin approval, and never came to be. I decided to rewrite the post once again.. Hope this post remains up. Some revisions are to fix the formatting and syntax so it is more legible for the reader.)

The CCNA study guide is a complex realm where multiple materials exists, which indeed makes it harder to make a choice of what approach to take, how to approach it and how to succeed. That's why, after having taken the exam and passing it, I feel confident in sharing my study guide on how I approached the CCNA. I have taken upon myself to get a ?Definitive Guide that you can refer to when you feel lost. This is quite a long read, so buckle up.

It took me so much to put it together, I hope this will help some of you in achieving your CCNA! You got this!

There is a tl:dr for those who are time cautions, there is cake for everyone.

Main Materials:

First off, let's talk about materials. Here's what I used throughout my studies. Keep in mind that these are not limited, there are more out there, but are the ones I primarily used:

Official Cert Guide:

  1. Official Cert Guide (OCG) by Wendell Odom (Volume 1 & 2)

Jeremy's IT Lab:

  1. Jeremy's IT Lab Free Course on YouTube
  2. Jeremy's IT Lab Flashcards

Boson:

  1. Boson Ex-Sim [Exam A, Exam B, Exam C]

Cisco Packet Tracer:

  1. Jeremy's IT Lab PT Labs

Secondary Materials:

These secondary materials are extra study resources I used to study for my CCNA. Although they were not my main source of study, they were life saviors!

Subnetting:

  1. Practical Networking Subnetting Mastery Playlist
  2. https://subnetipv4.com/
  3. https://www.subnetting.net/Subnetting.aspx?mode=practice

Cisco Extra Packet Tracer Labs:

  1. Extra CCNA Practice PT labs here.

Anki Extra Flashcards:

  1. [Available on a later Post revision]

Okay, great. So what is the study plan?

When I started prepping for my CCNA, that was 4 months ago, back in January 2024. I started like some of you, clueless on where to start, given the numerous resources available. I did not know how to get started, or even how to begin my studies, until I came across these two post from u/Totalmoneytakeover and u/happymango24.

Without their guide, I definitely wouldn't have been able to adapt and create my tailored study guide. I have to give credit when is due, so the least I can do is to invite you to have a read as well to their posts. After all, you are responsible on choosing the best study approach.

Both legends basically provide incredible summary on how they achieve their CCNA, and I will do the same for you guys. I had combined both study methods to tailor my needs. The following steps will be mentioned as my POV:

  1. I Began with the introductory chapter from the OCG book. It definitely gives you a good overview of what to expect on the exam.

LOOP:

  1. I started with the introduction of a specific chapter and attempt a DIKTA quiz (Do I know This Already?). Depending on my results, I decided whether to skim or fully read the chapter.
  2. Take notes if needed. (Personally, I did not take any notes from the book, but from Jeremy's)
  3. Upon completing the chapter for a specific topic, I watched Jeremy's IT Lab video for the same topic, took notes as appropriate. Jeremy tends to summarize what you've read, which can be a helpful reinforcement.
  4. Used Jeremy's flashcard before attempting his end-of-video quiz + 1 Free Ex-Sim question.
  5. After the flashcards, I attempted the Jeremy's end-of-video quiz. If you feel confident, move on. If not, review and clarify doubts.
  6. Proceeded to Packet Tracer Labs by Jeremy. I tried to complete the lab fully without watching Jeremy's demonstration first. If you struggle, resist the temptation to peek and try to solve it yourself, otherwise refer to Jeremy's tutorial.
  7. Once done, I would watch Jeremy's demonstration video to compare results and learn from any mistakes.
  8. Finalized any missing notes, then; GoTo LOOP:

END LOOP;

  1. Everyday I would consistently practice flashcards, at night, at day, or even while showering (Funny but real). Repetition is key to retain information. Be honest with yourself, if you do not know the answer, use the "Again" option; retry the flashcard until you have memorized it.

COURSE COMPLETION:

  1. Once I finished all the course materials, including all the OCG's chapters and all Jeremy's IT Lab CCNA videos, it's time for a comprehensive review. At this stage I had considered investing in Boson Ex-Sim for additional practice.

Boson Ex-Sim, Yay or Nay?

<Disclaimer> This is my opinion </Disclaimer>

When I came across whether to invest on Ex-Sim or not, I was really undecisive. I did a major research on the advantages and disadvantages of getting Boson Ex-Sim, and I opted to buy it.. Oh boy I was glad I did.

Personally, Boson Ex-Sim was a game-changer, as despite of being extremely confident about the exam, I had learnt from previous experiences that being cocky is not a good idea and won't bring you any good. As of this, I humbled myself and decided to invest on Ex-Sim. By far the best practice exams you can find out there. You may be thinking.. Is this sponsored? No, so please who ever is from Boson, HMU, open to negotiations.

This means that I will have a rest assured passing score if I get Boson? Kinda, let me explain.

When you attempt an exam, you technically want to feel familiarized with the environment, the test structure, type of questions and scoring (which Cisco does not share). Attempting the simulation exams from Boson's will definitely provide you with a real feeling on how the test is, what type of questions are you likely to come across, etc. If you allow yourself to familiarize with the exam, when it's time to do the real one, you will surely NOT find any surprises. That's why I said, Boson was a game-changer for me.

What about Boson NetSim, I surely bought it, right?

Well, actually I didn't. I personally found that Packet Tracer's lab was more enough. I found that everything I needed to know for the exam, command wise was already included on Jeremy's PT labs or the secondary materials' lab which also helped me getting used to unknown lab environments, practice commands and put in practice my skillset.

So, what I am saying is not to get Boson Netsim? No. Basically, these software is defo handy if you want to take an extra step towards labbing. It's all up to you.

I Got Boson Ex-Sim. Now what?

Okay, you got Boson Ex-Sim. Before attempting a practice test, I would suggest the following.

  1. (Applicable for Test Center candidates): As you will be given a laminated sheet and a liquid erasable marker, the idea is to closely relate to the real exam as possible, which means buying laminated sheets and markers so you can take up notes when attempting Boson's exams.
  2. Have memorized a cheat sheet. If you are curious to know which cheat sheet I used, refer to the <Subnetting, Subnetting, and more Subnetting> section. I used a combination of Practical Networking' subnetting video series, as well as my own notes to answer any type of subnetting question.

Let's start with Exam A:

  1. You will allocate 2 hours of your day to perform the simulated test. Make sure you are using simulation mode before starting the Exam. The simulation mode will fully simulate the test. TIPS: If you don't know the answer, try discarding any wrong options, otherwise take a lucky guess and move one, and mostly importantly DO NOT cheat during the practice test.
  2. Write down the cheat sheet of your preference. and Start the test.
  3. Don't worry if you don't ace it, use this first attempt to identify areas for improvement. Try to find topics you require further studies.
  4. After finishing the exam, use this time to review your missing components. Why did you fail? or What questions did I get wrong, and why?
  5. After reviewing, attempt the Exam A again in study mode. This time, focus on understanding the questions thoroughly. If you ever find a type of questions were you got the correct answer, yet still in doubt, try reading Boson's explanation. Similarly when you selected a wrong answer. Take notes if necessary.

At this stage, you may have a better visualization on how the exam would work. I would not worry about your end result much as this is your first attempt. Here is where you shall start thinking about booking the exam, if you haven't so.

Quick Tip: If you book an exam, let say couple of weeks in advance, you have a set day already and will allow you to push yourself even further on your studies, any procrastination will affect you, you having a set day will help you stay focus. The deadline is approaching.

Recommendation: I would suggest booking the exam 2-3 weeks in advance upon completing your first Boson Exam A. This will allow you to do each Boson Exam per e/a week, allowing you a full week to revise on topics you may need more information about.

Repeat Steps for Exam B and Exam C; with a few caveats:

Try not to go back each question. Unfortunately, Cisco does not allow you to go back on each question, which means that you won't be able to change your choice. However, Boson does allow it, so I would suggest against it. The reason, to closely simulate the practice exam to the real exam.

By the time you attempt Exam C, you should feel really confident on answering all Boson's question types. This will really let you know if you are truly ready.

Does that mean that who ever fails Exam C will not pass the exam? No!! I Did not mean that, I've met people who did purply on the Boson's tests and passed the CCNA. The idea behind Boson is to get you used to the software used, how are the wording structured, how are exhibits displayed, etc. Do not feel thrown off with the results. Ideally you want to Pass, but do not be hard on yourself with you did not achieve your desired outcome. Use that opportunity to revise once again.

Subnetting, Subnetting and more Subnetting.

Yes, yes and definitely yes. You need to master subnetting for your CCNA. Which means understanding that it is, why is it used for and how you can subnet networks accordingly.

I used Subnetting Mastery by Practical Networking, which breaks down subnetting in a way a baby can understand it. I would suggest to having a massive understanding on how to obtain certain components in subnetting, namely First Usable, Last Usable, Broadcast, Network ID, Next Network, etc.

Furthermore, I practice subnetting at least once every 2 days. (If you are new in networking, I'd suggest practicing subnetting every day). Try using NO CALCULATORS for binary operations. Bear in mind that Cisco does not allow calculators. Everything needs to be done manually.

My Cheat Sheet for reference: link here.

tl;dr

The CCNA study journey can be overwhelming due to the plethora of resources available. To help fellow learners, I've compiled a comprehensive guide based on my successful experience. Here's a brief overview:

Main Materials:

  1. Official Cert Guide (OCG) by Odom Wendell (Volume 1 & 2)
  2. Jeremy's IT Lab Free Course on YouTube and FlashcardsBoson
  3. Ex-Sim for practice examsCisco Packet Tracer for practical labs

Study Plan:

  1. Started with OCG's introductory chapter, followed by Jeremy's videos and labs.
  2. Utilized DIKTA quizzes, took notes, and practiced flashcards regularly.
  3. Consistently reviewed and reinforced knowledge until fully confident.

Boson Ex-Sim:

  1. Invested in Boson Ex-Sim for realistic practice exams.
  2. Found it invaluable for simulating the exam environment and types of questions.

Subnetting:

  1. Mastered subnetting using Practical Networking's Subnetting Mastery playlist.
  2. Practice pretty much everyday.

Ultimately, the key to success is dedication, thorough preparation, and utilizing a variety of resources effectively. Good luck on your CCNA! You got this!!

What were my test results?

I know some would like to know my CCNA results, as well as my boson Ex-Sim results; so here they are:

CCNA: Pass

Score: N/A

Network Access: 90%

IP Connectivity: 68%

IP Services: 100%

Security Fundamentals: 87%

Automation and Programmability: 100%

Boson Exam A: Passed

Score 848/1000

Network Access: 76.2%

IP Connectivity: 95.5%

IP Services: 83.3%

Network Fundamentals: 77.8%

Security Fundamentals: 82.6%

Automation and Programmability: 100%

Boson Exam B: Failed

Score 781/1000

Network Access: 70%

IP Connectivity: 87.5%

IP Services: 83.3%

Network Fundamentals: 94.2%

Security Fundamentals: 68.2%

Automation and Programmability: 60%

Boson Exam C: Passed

Score 914/1000

Network Access: 95.7%

IP Connectivity: 87.5%

IP Services: 100%

Network Fundamentals: 83.3%

Security Fundamentals: 90.5%

Automation and Programmability: 100%

If I have further to add to this post I'll definitely add more to it!

Feedback, critiques, typos, suggested changes to layout and (of course) corrections are welcome.

Please leave a like or comment so we can reach to more people on this subreddit! I hope to help new combers as well as those who are currently struggling with CCNA.

Revision 3.1

10 Comments
2024/04/14
07:16 UTC

4

WTF NetAcad?

From Switching, Routing, and Wireless Essentials v7.0:

A VLAN double-tagging attack is unidirectional and works only when the attacker is connected to a port residing in the same VLAN as the native VLAN of the trunk port. The idea is that double tagging allows the attacker to send data to hosts or servers on a VLAN that otherwise would be blocked by some type of access control configuration. Presumably the return traffic will also be permitted, thus giving the attacker the ability to communicate with devices on the normally blocked VLAN.

Yeah, no.

Has anyone else noticed a slew of inaccuracies in NetAcad? There's not an asston of them like there is with a Jason Dion course but this has to be one of at least 5 I've caught.

5 Comments
2024/04/14
06:30 UTC

2

How the heck this answer is true for this subnetting questions?

This is directly from subnettingpractice and confused the crap outta me. How and where did they get 1.80? Am i missing something here?

What is the network address and subnet mask (in CIDR noration) of the hidden (xxx.xxx.xxx.xxx/xx) subnet? The whole network has a network address and subnet mask of 192.168.0.0/23

https://postimg.cc/qgJ4h8yr

The answer is 192.168.1.80/30

4 Comments
2024/04/14
02:32 UTC

224

Just got my CCNA 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥. Have worked every single day 3 months and haf.

41 Comments
2024/04/13
17:16 UTC

29

CCNA in 2 hours!!

Hello everyone,

I have been studying for CCNA for 2 months now. I have networking experience + CySA + Network + / Security +. I will update everyone after the exam.

Is there any last minute reviews that are worth noting?

Thanks!

14 Comments
2024/04/13
16:05 UTC

4

Advise on starting my CCNA journey

I was always looking into taking my CCNA but I never could find a time for it, last time I started strong and then stopped half way through subnetting

This time I decided to commit or at least force myself to commit so I signed up to take the class in an Academy, which will include classes and labs

My plan is to attend classes, use Jeremey's IT lab for revisions, labs and flash cards and I also have Bombal course in Udemy since forever I might use it for labs as well. Once I am done I am thinking of doing some practice exams just to be safe

Do you guys have any advise?

7 Comments
2024/04/13
16:03 UTC

1

End devices out of view on physical screen

Hi all,

I'm studying CCNA and have just started using Packet Tracer.

On the Logical screen, I have a simple topology of a switch, router and a PC and Laptop. When I switch to the Physical view, I can't see my end devices. The wires to them go off the screen over to the top right.

Is this a setting or something I might be doing wrong?

Edit: Image in comments

2 Comments
2024/04/13
15:17 UTC

2

What's going on with Boson NetSim?

The CCNA 200-301 network simulations recently had an update, where the old modules are now listed as Legacy. The problem is that the new modules have a few glaring issues. Impossible IP addresses, miscongfigured devices, typos. Stuff that causes labs to fail that shouldn't. What happened?

3 Comments
2024/04/13
14:24 UTC

0

What apps did you use to pass the cct rstech 100-490

What apps d
Which apps on IPhone or Android would you recommend to pass the cct rstech 100-490? I’m looking for an app for practice questions similar to what is currently being asked on the cct rstech 100-490.

0 Comments
2024/04/13
13:55 UTC

0

my first video about ccna

Here IS my first video showing the ressources i used to get my ccna https://youtu.be/4WRTV4rT_SI

0 Comments
2024/04/13
12:27 UTC

12

Does anyone got a Job after getting the CCNA certification with no experience just Software Engineering degree or IT or Computer Science

26 Comments
2024/04/13
03:49 UTC

0

Need advice on lab simulator

I am currently using the Simulator Lite version from Pearson for Labs. I dont have anything to compare it to it seems good to me and I am learning a lot from the exercises. Is it necessary to buy the full version to pass the exam? Are there better, cheaper lab simulators out ther?

3 Comments
2024/04/12
23:37 UTC

2

What practice test is Best

Hey guys so I have been studying for the CCNA and I feel confident of my knowledge but I feel like I need to go through practice test before taking the actual test I would appreciate If you share with me, what practice test do you think it's best and Updated with the current ccna

Thanks 🙏

3 Comments
2024/04/12
22:06 UTC

3

Will be documenting my CCNA journey on YouTube by using packet tracer. Will be doing 100 days of content. On day 4 today! Join me in the process by subscribing. Thanks

0 Comments
2024/04/12
19:24 UTC

2

CCNA - Lab simulations

Good morning,

I am writing my CCNA tomorrow and have been studying for about 2 months now. During the lab simulations, is the ? available to you when building your router and switch configurations?

Thanks!

3 Comments
2024/04/12
18:32 UTC

0

CCNA test Expiration

Hey fox, does anyone know where the CCNA 200-301 will retired,??

I am studying for the test and my plan to take it by the end of MAY, i have been studying for a month now and i am more than halfway from Jeremy’s videos. I have sec+ and A + and help desk job, but i am nervous about the test because English is my second language and the CCNA is very challenging. I have a live circumstances and i must finish the CCNA before June. And tips please!! Thank you

2 Comments
2024/04/12
18:28 UTC

44

Zero to Hero CCNA in 7 weeks

Going to attempt to pass the CCNA in 7 weeks. I have my Sec + as it’s mandatory for my job and mainly just doing helpdesk. I will be using the following material:

Wendell Odom CCNA Book

Pearson questions from the Book

Pearson lab environment access from the book

Flash cards from the book

Jeremy IT videos from Udemy

Packet tracer from Jeremy IT Udemy course

BOSOM test questions

50 hours of Cisco lab learning

Any advice helps!!

30 Comments
2024/04/12
15:35 UTC

0

Study Tips

Hey All,

Don’t know who this will help but I hope it finds you in your time of need and frustration. As someone who has only worked with layer 1-3 when it comes to networking. This new study method I found helped me out a lot. Especially with Jeremy’s IT videos.

After watching 1-3 videos, while taking a 5 minute break in between “episodes”, I would wait 4 hours to get my mind off of it and then come back to it later. I found that I was able to retain the information better and actually felt like I understood what I was watching. If I still had questions I would ask Chat GPT to explain it in absolute simple terms as if it were talking to someone who has no knowledge on networking. Along with researching if Chat GPT gave me the correct information. (Always do your own research. Chat GPT is a tool. Not a definite solution).

This has helped me tremendously and I’ve moved my test date out to try this with topics I was struggling on.

If you are willing to spend the extra money/investment into studying. I highly recommending PockPrep’s new system they are testing out for their app called “Level”. Think Anki Flash cards but with questions. I know myself, and I learn better from my mistakes. They break the it down into the exam topics and you will only be asked questions from that one topic. Helps you learn more horizontally rather than vertically.

TLDR: Study for a few hours. Take a long break. Come back to the same topic/video Spend the extra dollars and try out PocketPrep Level for a month. For questions in a anki flash card style.

Thanks. Best of luck!

8 Comments
2024/04/12
15:35 UTC

5

cisco book

hello

anyone know if the book CCNA 200-301 Official Cert Guide Library by Wendell Odom (2019) is still up to date or depaser to study ccna or it's better to take CCNA 200-301 Official Cert Guide and Network Simulator Library (2022).

thx

2 Comments
2024/04/12
11:53 UTC

6

Need Help with OSPF Neighborship: Routers Not Forming Adjacencies

Hey everyone,
I'm facing some issues with OSPF neighborships in my network topology, and I could use some guidance to troubleshoot and resolve the problem.
I have three routers (R1, R2, and R3) configured with OSPF, and I'm trying to establish OSPF adjacencies between them. However, I've noticed that OSPF neighborships are not forming as expected.
Here's a brief overview of the current situation:
R1 has an OSPF neighborship with the Router ID 209.165.200.225 via interface Serial0/0/0.
R2 has OSPF neighborships with the Router IDs 192.168.30.1 and 192.168.208.1 via interfaces Serial0/0/1 and Serial0/0/0, respectively.
R3 only has an OSPF neighborship with the Router ID 209.165.200.225 via interface Serial0/0/1.
I'm wondering why R1 isn't forming a neighborship with R2 (Router ID 192.168.30.1) and why R3 isn't forming a neighborship with R2 (Router ID 192.168.208.1).
Could this be due to misconfiguration, network topology issues, or something else entirely? I've checked OSPF process IDs, areas, network types, and authentication configurations, but I'm still unable to pinpoint the exact cause.
Any insights or suggestions on how to troubleshoot and resolve these OSPF neighborship issues would be greatly appreciated!
Thanks in advance for your help.
Edit 1-
Hello fellow network enthusiasts, I'm encountering an issue with the OSPF interface connectivity between routers R1 and R3 in my network setup. Here's the problem:
The Serial0/0/0 interface on router R3 is showing the line protocol as down.
Despite being up on R1's end, the Serial0/0/1 interface on R1 is unable to establish a connection with R3.
Both routers are configured with PPP encapsulation and IP addresses are correctly assigned.
I've already attempted the following troubleshooting steps:
Verified physical cable connections.
Ensured interface configurations are correct.
Confirmed encapsulation types match on both ends.
Checked administrative status (not administratively down).
Verified keepalive settings match.
Despite these efforts, the line protocol remains down on R3. Any insights into what might be causing this issue and how to resolve it would be greatly appreciated. Thank you in advance for your assistance!
Edit2 here is the configuration of the serial link b/w R1 and R3.
R3#show interfaces Serial0/0/0
Serial0/0/0 is up, line protocol is down (disabled)
Hardware is HD64570
Internet address is 10.3.30.2/30
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Closed
Closed: LEXCP, BRIDGECP, IPCP, CCP, CDPCP, LLC2, BACP
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/0/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1#show interfaces Serial0/0/1
Serial0/0/1 is up, line protocol is up (connected)
Hardware is HD64570
Internet address is 10.3.30.1/30
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Open
Open: IPCP, CDPCP
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/0/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 51 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
116 packets output, 7424 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

12 Comments
2024/04/12
09:32 UTC

0

CCNA - Suggestion

Hi All

Myself Gautam, I'm seeking assistance regarding the CCNA exam as I'm scheduled to take it next week. How can I ensure success on my first attempt? What are the key considerations I should keep in mind?

I completed the syllabus, but was unable to select which material I should select for practice . Kindly advise me.

Thank you

Gautam Singh (India)

6 Comments
2024/04/12
06:39 UTC

1

CCNA EXAM

Hey guys, I have completed all CCNA topics in my diploma. I was wondering if I can complete revision and test within 2 weeks.

3 Comments
2024/04/12
03:58 UTC

0

Preparation to take the CCNA

Hey guys, I'm relatively new to all this networking thing, but I'm about to graduate college in Systems of Telecommunications. So, I was looking for advices about the next steps to take, and was told to pursue the CCNA certificate. I'd like to know if somebody has any tips for studying and getting ready to take the exam. Any experience that you can share is welcome... Thanks in advance!

2 Comments
2024/04/11
20:50 UTC

83

Today is the day! Wish me Luck!!

After 4 long months studying day and night, with over +3 years of networking experience. Today is the day I leave my fears aside to attempt the CCNA!

I'm nervous but confident! Wish me luck!

UPDATE: I passed!!!!!

Network Fundamentals: 85% Network Access: 90% IP Connectivity: 68% IP Services: 100% Security Fundamentals: 87% Automation and Programmability: 100%

55 Comments
2024/04/11
19:55 UTC

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