Wooo I learned how to subnet

amb1s1

I'm impress with myself. I didn't know that I was going to learn subnet that fast.To tell you the true is kind painful because everything that I think is subnet. I was taking a nap yesterday and my wife wake me up, the first thing that came out of my mouth was "Subnet, 128". LOL My wife was like WHATTT Well, I have a question. I'm reading the Cisco Press intro book and I'm in chapter 13. I took a sample test and they were question that I didn't have an Idea what was the answer. I would like to know if Cisco press Intro has a lack of details or Is that I probably pass over couple of details on the book. Thanks

mikej412

amb1s1 wrote:

my wife wake me up, the first thing that came out of my mouth was "Subnet, 128".

But what was the question?

I woke up this morning thinking I was doing a BGP implementation What's that about? I should be dreaming Security since I have the CCIE Security Lab in June.

Make sure you visit www.subnettingquestions.com at least once a week to keep your skills sharp until you get your CCNA.

amb1s1

Sorry that I went over the topic. While I was I was impressed with my subnet learning, I was kind of down when I took couple of sample test online. They were kind hard, and my question is. Is the Cisco Press Intro a good book because I thought after reading most of the book (Chapter 13), I was going to have a well knowledge, but I was kind clueless when I took those tests.

shednik

once you have started reading a good bit, its time to get your feet wet

meaning buy a router or two or three....whatever you want

do labs....goto town!

you can read all you want and learn the theory...if you want to fuully understand everythign you need the real experience.

Sims can do the job as well but! not as much as the real thing..

just my .02 cents

jvax

Maybe those online tests you took contain ICND level questions...

Getting the ICND book and covering the overlapping topics might strengthen your knowledge as well.

Get some hardware, or a simulator and try practicing what you've learned so far.

amb1s1

I'm going to try to get a simulation, but my problem is that I have an Apple Computer and I don't see any simulation for Mac OS X. I'm going to try to install windows on my macbook over this weekend, so I can get the Boson Simulator. By the way where is a good website for free test samples.

Darthn3ss

i fell asleep last night trying to remember what DUAL stood for.

Infact, i've got it nailed down, except the D part. i know Update Algorithms, and i'm not 100% but the D might be Diffusing... :-p

and don't even try to get me to pronounce the SPF algorithm for OSPF.. thats di-alkasjdf;lk-what?

oh, and i'm still pretty slow with subnetting, and binary math. i need to work on that but routing protocols are so much more fun!!

amb1s1

That is where I'm at the Routing Protocol. I have to read that chapter couple of time.

Netstudent

I woke up this morning wanting to wanting to slap myself upside the head because while I was laying in bed going over a calculus problem I had on my Final exam last night, I realized in my head that I thought I did it wrong. Is it wierd to be able to work out 15 hour old calculus problems in your head? MAN do I wish Cisco was the only thing I had to wake up to.

iproute

Darthn3ss wrote:

and don't even try to get me to pronounce the SPF algorithm for OSPF.. thats di-alkasjdf;lk-what?

I just pronounce it "dyg-struh"

Not sure if this is correct but the CCNA isn't verbal

Netstudent

The man himself..

iproute

Netstudent wrote:

The man himself..

I just found my new nerd hero of the week, replacing Radia Perlman (creator of spanning tree protocol):

Netstudent

Kewl....

Why is it that geniouses are always nerdy looking. Can humans not be blessed with an ingenious brain and looks? Maybe all the chromosomes are geared towards brain power and not the extra Y chromosome for good looks.

markzab

Bill Gates once said to an auditorium full of high school students...

Be nice to Nerds. Chances are you'll be working for one someday.

kafifi13

With subnetting it took a while. I really had a hard time. Doing problems, getting them wrong. I just kept doing practice problems. Finally it just clicked, and i could do it fast. In fact i just did a handfull for the first time since i past my Intro last month and it all came back quickly. That's why i just keep saying practice, practice, practice.

Kaminsky

mikej412 wrote:

visit www.subnettingquestions.com at least once a week to keep your skills sharp until you get your CCNA.

Cannot stress this enough..

Once you have clicked with subnetting and vlsm, spend half an hour to an hour, 3-4 times each day on this site for at least two weeks so you are absolutely sick to death of it but your speed is really good. You should be aiming at getting the simple questions done in under 10 seconds and the more difficult questions in under 30-40 seconds.

Attempt every type of subnetting question. Some may look complex but reading them carefully, they actually are quite simple. This does two things. It gives you a lot of confidence in your ability to subnet, providing a really good boost to your ccna studying overall and it also helps get your speed up so that you can create more time to spend on the more difficult ccna question topics in the real ccna exam.

Do not skip questions. If you get anything wrong, you havn't got it down as well as you thought you had so work out why you got it wrong. [I haven't known this site to get one wrong yet and I have been on it a lot] Skipping to the next question will come back and bite you in the a$$ later.

Congrats though. This is a tricky skill to get out of the way. Unfortunately, as you go on you will realise it is actually a tiny topic but it pervades almost everything, so getting it under your skin is absolutely essential.

gaby_978

I CAN SO RELATE TO THAT....I WASNT ABLE TO SLEEP LAS WEEK THINKING ABOUT SUBNETTING....THAT WAS ALL I COULD THINK ABOUT...

Rearden

Oh man I had to implement Dijkstra's algorithm for m Analysis of Algorithms class last semester. Reading about the OSPF made so much more sense from knowing this algorithm so well.

Cucumber

the first thing that came out of my mouth was "Subnet, 128".

that has happened to me!

amb1s1

I got the Boson Sim. I will start doing the good stuff.

jvax

Rearden wrote:

Oh man I had to implement Dijkstra's algorithm for m Analysis of Algorithms class last semester. Reading about the OSPF made so much more sense from knowing this algorithm so well.

Indeed it does. Happened to me too.

jvax

Kaminsky wrote:

mikej412 wrote:

visit www.subnettingquestions.com at least once a week to keep your skills sharp until you get your CCNA.

Cannot stress this enough..

Once you have clicked with subnetting and vlsm, spend half an hour to an hour, 3-4 times each day on this site for at least two weeks so you are absolutely sick to death of it but your speed is really good. You should be aiming at getting the simple questions done in under 10 seconds and the more difficult questions in under 30-40 seconds.

Attempt every type of subnetting question. Some may look complex but reading them carefully, they actually are quite simple. This does two things. It gives you a lot of confidence in your ability to subnet, providing a really good boost to your ccna studying overall and it also helps get your speed up so that you can create more time to spend on the more difficult ccna question topics in the real ccna exam.

Do not skip questions. If you get anything wrong, you havn't got it down as well as you thought you had so work out why you got it wrong. [I haven't known this site to get one wrong yet and I have been on it a lot] Skipping to the next question will come back and bite you in the a$$ later.

Congrats though. This is a tricky skill to get out of the way. Unfortunately, as you go on you will realise it is actually a tiny topic but it pervades almost everything, so getting it under your skin is absolutely essential.

Some pretty cool advice

Couldn't agree more

amb1s1

Hi I just finish intalling Boson Netsim and right now I'm try to do a simple setup. I want to setup two routers. (Newbie). I had the router contected to interface serial0. I dod the following setting on router1 (DCE:

Interface Serial0
ip address 192.168.1.1 255.255.255.0
clock rate 64000
no shut

- Router2
interface serial0
ipa ddress 192.168.1.2 255.255.255.0
not shut


After I did that setting, I'm not able to ping to either router. I checked show ip int brief on router2:

Status down and protocol down, but on router 1 both status and protocol are up.

I would easly find the answer on my book, but right now I'm on my job and I don't have the book with and beside that this is a great chance to get to know the GUYS in this great forum. Thanks, by the way anybody from New Jersey in here

Netstudent

Look at your Netmap viewer double click the routers, and double check the interfaces you have connected. Make sure it is S0-S0 and not S1-S0 or soemthing. Also make sure that router 1 is indeed DCE. You can use the Show Controllers serial 0 command. Also this is a sim and not real gear so try manually configuring an encap like HDLC or PPP. DCE/DTE errors wouldn;t make sense with the protocol being up. If DCE/DTE is wrong then protocol would be down and status would be up. If none of that works, start over with a new topology and remember Boson has limitations as you will see as you get further in your studies.

Here is my Boson output:

R1

Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int serial 0
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial0, changed state to up
Router(config-if)#clock rate 64000
%LINK-3-UPDOWN: Interface Serial0, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down

R2
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int s0
Router(config-if)#ip address 192.168.1.2 255.255.255.0
Router(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial0, changed state to up


Router#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Router#ping 192.168.1.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

amb1s1

Netstudent wrote:

Here is my Boson output:

R1

Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int serial 0
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial0, changed state to up
Router(config-if)#clock rate 64000
%LINK-3-UPDOWN: Interface Serial0, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down

R2
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int s0
Router(config-if)#ip address 192.168.1.2 255.255.255.0
Router(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial0, changed state to up


Router#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Router#ping 192.168.1.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

I try that, but still does not ping

Netstudent

Did you design your own topology or did you load a lab with a predefined topology? Sometimes those pre-defned labs have configurations in them that may conflict with what you are trying to do. It's a long shot but theres no reason why it shouldn't be pinging across. Thats the easiest of configurations. Post a running-config for both routers or start from scratch. If prot and status is down on that interface, it means that it has no layer 1 connectivity.

amb1s1

HI, I got it. For some reason it didn't take the clock rate comand. Hey I'm pingingggggg. It is funny how Pinging sound (If you are hispany you probably know what I mea). Still nobody from NJ or NY