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37713830 No.37713830 [Reply] [Original] [archived.moe] [rbt]

networking discussion thread:

ask questions, talk shit. whatever.

>> No.37713974
File: 277 KB, 960x1200, 1382060427338.jpg [View same] [iqdb] [saucenao] [google] [report]

What programs do you guys use to manage your home network? Why do you like it more than others?

>> No.37714011

What programs would you need to manage a home network?

>> No.37714053

Depends what sort of "managing" you're talking about. For logs I use splunk, awesome tool for dashboards etc. I use IPfire to monitor webtraffic / firewall and also have ip tables configured for my linux boxes which are in my dmz.

>> No.37714139

don't know, i just want to find out if you /g/uys use anything in particular.

>> No.37714289
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>> No.37714331
File: 28 KB, 1004x422, network_diagram.png [View same] [iqdb] [saucenao] [google] [report]

my diagram

>> No.37714357

>I use IPfire to monitor webtraffic / firewall

have you ever tried pfSense?

>also have ip tables configured for my linux boxes

individually configuring client firewalls sounds like a pain unless you only have 1 or 2 boxes

>> No.37714371


You generally dont need to "manage" a home network. At most you might want to configure your connections for QoS, but really, you dont need anything other than the GUI that came with your router

Enterprise is far different than a home network and needs actual managing

>> No.37714378

studying for the ccent?

>> No.37714394

yes, briefly used pfsense, only installed it and then decided not to use it. so can't really comment on it.

yes, only have 2 linux boxes so its not such a pain, wouldn't do it if I had a few linux boxes for obvious reasons like you mentioned.

>> No.37714397

What happened to the grand theft /g/entoo project? I remember there was a file server and an irc but then it vanished

>> No.37714417

ive done the ccent training, about to start doing the ccna training.
that diagram i posted was for a unit in my certificate iv

>> No.37714426

are you studying for any certs currently? i'm a networking student and am working on the noob ccent - although it's been beefed up some since cisco changed the tests on september 30th.

a lot of ccna stuff got moved to ccent, and ccnp stuff to ccna, etc

>> No.37714453

CCNA is a lesser cert than CCNE fyi

>> No.37714470

I've done a cert III & 4 in networking and finished the ccent training. About to start the training for CCNA and im also studying to sit my VCP5-dca sometime over the next year. I used cbt nuggets vsphere training videos and also read mastering vmware vsphere 5 and thats all ive done so far towards my vcp but will continue studying until i feel confident to go do the official vmware training and then sit the exam.

>> No.37714497
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>> No.37714525

>I've done a cert III & 4 in networking

i'm not familiar with the program / terminology you're referring to here - what is it?

>> No.37714546

It's Australian. You can do these certs as a student to work towards an entry level job.

>> No.37714567

CIDR, How does it work!

>> No.37714581

oh I gotcha - I'm American so that flew over my head

I'm currently a networking student and we just do the whole program and don't get the certs between each academic course

>> No.37714609

oh man I feel ya, I just figured out CIDR about a week ago and now it's the easiest thing ever. I can subnet a class A network in about 15 seconds if I have a pencil and paper.

keep banging your head against the wall and it'll click eventually

>> No.37714618

He's referring to useless technical college certifications.

>> No.37714632

Oh okay, how long does the program you're doing go for?

I can do a diploma in networking now because ive completed the prerequisites for it being cert 3 and 4 but i doubt ill bother. Would rather get my CCNA and VCP5dca. Thinking about also aiming towards getting a SAN specific qualification.

>> No.37714654

How do I link my printer to the internet,so I can print across the town/state through an internet connection?

>> No.37714655

Subnetting is such a bitch to get, you just need a system

>> No.37714658

I'm just in a 2 year program and yeah I'm with you - I'm after the CCENT & then CCNA soon after.

2 year tech program + CCNA = entry level network tech job, easy

>> No.37714677

yeah pretty much. what made it "click" for me was when I figured out how to do increment/block sizes and then counting up the networks from 0

got real easy after that - finding subnet, range and bcast address

>> No.37714696

That's true. I'm working at a small/medium size business as a network administrator while studying at the moment. Easy to get a job after you've done a cert or some experience.

>> No.37714722

you're in a damn good spot, already having experience for a resume.

if you get the CCNA and your current job doesn't promote you, you can GTFO and make more money elsewhere.

i'm trying to be a network tech for 2-3 yrs at an ISP, then be a net engineer, then work at a data center

>> No.37714742

Well your not really suppose to stop at a CCNA

>> No.37714755

yeah, I want to get a CCIE honestly but IF i ever make it that far, it'll probably be 10-15 years from now

>> No.37714768

Yeah, was glad I got a job especially in the are I wanted to move into.
I'm going to stay with these guys for a bit as they will pay for my CCNA and VCP5-dca training and then put me through the exam. After that I may move onto a larger business for a bigger better job.

Being a net engineer would be sick, I'm looking to move more into VMware and probably just specialize in vmware/networking/storage.

>> No.37714786

I'd like to get my CCNP and maybe even a CCIE one day. At the moment tho I'm just looking for some qualifications to get under my belt.

>> No.37714806


dude I don't know if this applies to your region, but http://www.globalknowledge.com/training/generic.asp?pageid=3596

is offering to pay for a free $120 vmware cert until january 31st.

it's an online course, online study guide and online exam, to get 1 of 3 *legit* vmware certs.

>> No.37714840

CCENTfag here, just got my CCENT today. Only entry level but pretty happy. Onto my CCNA!

>> No.37714849

how tough was the new 100-101 test? you might not have anything to compare it to but I heard it got beefed up a bit from the old one

>> No.37714852

Looks good. I believe that is the qualification below the VCP5-dca so I would probably nearly be ready to sit that exam.

Ill check it out, thanks bro

>> No.37714854

What state are you in OP,? I finished cert 3 as well, just waiting to go into 4 after the break

>> No.37714885

Nah i hadn't taken the old one. However you really do have to understand exactly how a switch/router works. You also need to fully understand OSI model. You need to be able to subnet, and FAST. You also need hands on experience. Also you need to understand OSPF quite well. I watched Chris Bryants video set first, then after that i read Todd Lammle's book. It covers all you need to know, but you REALLY have to understand what they are saying in the book. Not sure if that response helps or not

>> No.37714912

thanks man, i know you have a ND agreement so you can't get into details.

i'm currently going through lammle's book, and i need big time work on OSPF

congrats btw

>> No.37714937

Thank you sir, yeah make sure you know that OSPF, and also subnetting. Subnetting is a big part they push, cisco even says so ha.

>> No.37714979

i'm thinking i do need another material besides just lammle's book - do you think you could've passed on the book alone? i'm sure the video series was a big help

>> No.37714986


>> No.37714992

what software are you using to study cisco certs, how are you seting up virtual networks, so you can see the packets flying around virtual devices

I used to have something that could do it a few years ago but gave up when I go frustrated with the training vids I was watching

>> No.37714994

Doing a 5 year networking/CS degree. My CCNA is now expired, frankly it got me nowhere but maybe I didn't look in the right places or talk to the right people.

>> No.37715000

Just signed up, so will run through this training and then do the exam before that date.
thanks heaps!

>> No.37715005

The video series did not cover anything the book didnt. i watched the videos just to get my feet wet in what i would be reading about so i could grasp it easier. With the book alone, to be honest, yes. If you understand what hes saying and dont just skip over parts you dont understand then yes you probably could, if it says anything about lammle's book, i plan to buy his ICND2 book for my primary study point

>> No.37715027

no problem man good luck

>> No.37715029

In addition, you will probably have you watch some youtube videos and google searches to understand what hes trying to say. you MUST MUST MUST MUSSSTT be able to subnet.

>> No.37715051

i use both gns3 and packet tracer

just drop 3 routers and 2 switches in the vm and start making shit talk.

set up vlans and anything else you can think of

i can subnet really well but i don't have the CIDR tables memorized, i have to use a pencil (I'm pretty quick tho) hopefully it'll be ok, i know time is a big factor

>> No.37715110

Sounds like your doing well bud, thats how you learn, just making some networks with what you learn. It teaches you so much. Sounds like youll be successful if your actually applying it.

>> No.37715113

is there anywhere i can learn the material for free to get the CCNA? not the free cert itself but just the study material.

>> No.37715143

I use pfSense and I will never go back to dd-wrt or tomato. mac based ip assignments, snort, OpenVPN, multiple WAN gateways, LACP. Anything less than enterprise class feels like a toy now.

>> No.37715160

Yes sir, torrent todd lammle's ICND1 and ICND2 study guide, packet tracer, and chris bryants ICND1 and 2 videos. Then go to down.

>> No.37715210

I've gotten quite a few 'free' materials by googling pdfs and getting them off IRC channels.

granted, downloaded PDFs *can* contain malicious code, so I always run them inside linux and have wireshark in the background to watch just in case.

>> No.37715231

oh yeah, big time, pfSense is fucking amazing and I giggle everytime somebody says "DD-WRT / Tomato is awesome!"

>> No.37715283

I did this lab today, it's not directly related to a Cisco cert but it helps you to really understand the fundamentals of networking.

set up 2 linux VM's in virtualbox (all free) - have 1 vm be a client and 1 be a server. install wireshark on both machines. set each VM's network card to be an internal (virtual) network in the virtualbox settings.

now start installing server software like dhcp, dns, apache etc and, with wireshark running on both machines, observe the handshakes and general packet flows from both the client and server side.

remember how you read about the theory of 3 way tcp handshakes and dhcp 4 way handshake? it makes a lot more sense when you actually see it.

>> No.37715290
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>> No.37715314

I'm in a Cisco I class and I'm doing decent I suppose. I could be doing way better. Can anyone help me understand subnetting better? I feel like I'm guessing on half of the questions. Word problems are from hell.

>> No.37715331
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and it's all free.......fuck

>> No.37715357

regardless of how weirdly the question is worded, just know this with subnets.

find the max # of subnets (2^n)
find the max # of hosts (2^y-2)
find the subnet address
find the host address
find the broadcast address

they can throw all the wording voodoo they want at you, but if you can figure out these steps you will be able to solve any problem

>> No.37715379

>host address

I mean host range*

>> No.37715399

how much do you understand?

can you give an example of a problem that doesn't make sense and I'll try to explain it for you

>> No.37715404

These. Running an IPS on your home network is a good feel, I always win at network fights.

>> No.37715420

Here ill make an example and try to make it easy. Say you have the network address with a subnet of That means you can only work with the last octet. Imagine you needed two networks. You only have your last octet to work with, so naturally youll split it in half right? That way you have two networks? Well how do you do that you might ask? Well simple you litterally split it in half. so is a network and (half way through the octet you have to work with is a network) which is

So you can either have (which has 256 possible addresses)

or you can split that 256 addresses up into two networks which would be -
and -

You split your network into two networks. .0 is hte first network address. and .128 is the second network address.

If this helps ill explain some more.

>> No.37715431

say you have the network address*

sorry im drunk

>> No.37715441

drunk subnetting is best subnetting

>> No.37715511
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I'll keep this in mind, thanks.

These questions in pic related are quite tough for me.

>> No.37715633

those are pretty tough for anyone that doesn't understand subnetting.

do you get the basics of subnetting e.g. easy class networks?

if you get the fundamentals of it down, the rest will come along easily.

you shouldn't be doing hard problems when you don't know how, that's only going to cause frustration.

>> No.37715706

Well if it counts for anything, i blew through those in about 2 minutes. and i passed the CCENT with a 92. So you really do need to know sub-netting

>> No.37715744
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I appreciate it. I'll just have to buckle down and practice a lot.

>> No.37715758

I'm actually looking at doing a cert III & 4 in networking. Are you by any chance from Melbourne, and if so, what tafe(s) do you suggest? I was also wondering if they integrate the training/study for the ccent or ccna, or do you need to study by yourself for those?

>> No.37715774

If it makes you feel any better, those questions are bullshit and you will never have to do crap like that in the real world.
Why they even mention classful networking is beyond me, they should stop teaching that garbage because it just confuses people.

>> No.37715779

i'm doing them now and getting them all correct but i'm slower b/c of pencil and paper.

(i know /24 is classful, /30 is only 2 hosts etc) but the others, like, i have to work out.

do i need to memorize the CIDR numbers?

>> No.37715809

agreed, it's just cisco's way to make sure you know it inside and out.

>> No.37715837

did you have to do any class A networks on the test? that just seems cruel

>> No.37715857

Ehh kinda, if you can do them by pen and paper your like RIGHT there. If you do more practice i bet youll start to do more things by memory. i didnt even know how to subnet two weeks ago

>> No.37715911

Im from Tasmania.
I went to the Hobart Polytechnic.
They didn't intergrate any cisco training into my course when I was there in 2011 although I believe they do now at a cert iv or diploma level.
I did a cert iv traineeship and had to do all my study myself to pass that.

>> No.37715942


Any tips?

>> No.37715948

For CCENT class b and c is fair game. You need to know how to do both. but A and B is pretty easy.

Say you have a /20

In the third octet you have 4 host bits. (which are 0's)

1111 0 0 0 0
16 8 4 2

The network address is every 16 in the third octet. - - -

>> No.37715949

>home network.

>> No.37715985

I once heard of a cheap euro alternative to Cisco, any thoughts as to what I may have heard of? (I forgot the name)

>> No.37715995

okay yeah I've got b and c down. the class A addresses with /13 subnet take me a bit but i guess it's the same thing as B, just one more octet to the left

>> No.37716014

cisco certs are cheap, only about $150 american.

if you want something even cheaper than that it won't be worth shit and it sure won't carry the weight that cisco does

>> No.37716040

A is the the same as B bud, yeah A and B take be awhile too, i do C in my head. But if you can do B you can do A.

>> No.37716070

sounds like your on the right track though

>> No.37716090


thanks for the input

>> No.37716125

Thanks for that. I think it'll be worth seeking out institutions that do integrate the cisco training at cert iv level, unless they all do.
How important is it to complete the cert III, is it required or was it just a waste of time?

>> No.37716143

Sorry I meant hardware vendor wise

>> No.37716171
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When I want to fuck with the stupid linux admins at work I send them network information in CDIR notation.

>mfw when they have to google a subnet calc

>> No.37716192

lol subnet clac

>> No.37716230
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I want to build a pfSense router. In order to achieve 1Gb/s throughput, what sort of hardware would I need?

>> No.37716251

It was a prerequisite before cert iv for obvious reasons, which youll discover when you do the course.
Just do a lot of study in your spare time and you smash through it no problem.

>> No.37716255

gigabit nics and cat 5e

>> No.37716276

a shit computer with a 1gb nic

>> No.37716491

Planning on taking my CCNA this December. Anyone have any questions concerning routing protocols or any layer 2 technologies?

>> No.37716555

As succinctly as you can, describe the basic principles of IP addressing. Include mention of public and private addressing, fixed and dynamic addressing, subnet masks and default gateways, APIPA, slash notation and routing.

>> No.37716780

Private addresses are described in RFC 1918, and they're coupling with network address translation (NAT) is the only reason for why we're still using IPv4. Public addresses are just addresses assigned to different parts of the world through a company called IANA.

Subnet masks are what routers / multilayer switches look at in order to differentiate between network and host bits. So if you have, that means that the 192.168.1 portion of the address is the network, and the last octet is reserved for identifying the hosts on that network. Think of CIDR as a shorthanded method of writing out a subnet, where the CIDR is the number of bits turned on. So the CIDR for is

Will get to the rest in a bit.

>> No.37716796

not him but I'll take a crack at it.

IP addresses are logical addresses used connect computer networks together.

RFC1918 address space is reserved for private addressing (10.x.x.x)(
and all other ip addresses (except are fair game for public

static addresses are manually assigned, dynamic addresses are dynamically assigned by a dhcp server which uses udp and a 4way handshake to communicate with clients

subnet masks tell you how much of the ip address is used for the network. the subnet mask 1's represent the network id and the subnet masks 0's represent the host id.

default gateways are also known as default routes. if a router (or computer) doesn't have a destination address in its routing table, the "default route" is selected and sent upstream, in hopes the next router will know what to do

APIPA address (169.254.x.x) is what happens when a client is configured to recieve a DHCP address but no DHCP server can be contacted.

slash notation (CIDR) just tells you the subnet mask, usually a classless network.

routing works like this.
a router receives a packet and checks the packets header for a destination IP. then the router checks its routing table for said IP. if a path is known to the IP, the router will send the packet on to the next hop. if the destination is not known, the router will spit the packet out its default gateway. if no default gateway is set, the packet is dropped, and an ICMP destination unreachable message is sent back to the source.

i'm just a net student and typed this out really fast off the top of my head, but that's most of what you asked for i believe

>> No.37716862

awesome, thanks guys :)

>> No.37717019

I have to renew my CCNP next month.


>> No.37717038


if you're a real CCNP it should be easy - you've passed the material once and I assume you have a job that has you doing networking everyday?

>> No.37717067

Finished CCNP ROUTE and SWITCH this past summer. Gonna do TSHOOT this Christmas.

SWITCH was easy, ROUTE had me struggling a little bit. Passed both on the first try though.

>> No.37717092

No Cisco test are a pain in the ass. I'm a network engineer and I still have study up on the shit I don't do every day.

>> No.37717101

For people prepping to take CCENT and CCNA, try:


If you can do every question it spits at out in under 15 seconds and in your head, you will have no issues with that component of the cert exam.

>> No.37717113

how are they a pain the ass specifically?

>> No.37717116

asking stupid vendor specific questions.

>> No.37717123
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>> No.37717151

so a cisco test asks cisco related questions?

sounds pretty normal

>> No.37717186

I never said it's not normal, I said it's a pain in the ass.

I only keep my CCNP active just in case I want to job switch.

>> No.37717195

Ideally, it should ask vendor neutral questions, and a lot of the questions could apply regardless of vendor. Cisco just loves its own brand so much it'll shit it up with SONA, IIN, massive section for EIGRP, TACACS+ if you're doing security, and so on.

It would be good if people also took a good look at Juniper, Arista, Fortinet, and so forth.

>> No.37717199

if you have a cisco cert and don't work with cisco equipment, that kinda sucks.

older cisco gear is cheap on ebay, make a home lab and spend some time brushing up

>> No.37717208

Fuck this guy and is smug look.

>> No.37717227

Anyone have any Juniper certs?
I took the JNCIA exam for free and passed.

>> No.37717252

How can I create a print server so I can print from where ever I can get internet connection?

>> No.37717263

I actually work in a 100% cisco shop. 6500s, 4500x, 4900s, 2950s, 3750s, 5585, 4400, I could on and on. I've been in the network field for over 8 years, but some of the questions suck.

>An example of why I hate cisco cert tests
I researched, designed, and deployed a cisco IPS setup for the ASA and the IOS IPS. I knew the system pretty well so I thought I would take the test. I get one question that goes:

>you're going to setup an IOS system for your network, which Cisco IPS product is best for scenario X!
Really? This hardware has a 3-5 year life. You want me to memorize your hardware specs? When I bought your product I did that, but it's not something you memorize.

>> No.37717267

the network+ is vendor neutral and that's understandable.

a cisco test is going to be about cisco things, i don't see why you would think otherwise.

>> No.37717284

okay man I'm on the same page as you now, that does suck.

>> No.37717289

I realize that and I'm not naive. It's why I said "ideally".

Cisco has quite a bit of power and responsibility here given how popular their certs are for networking.

>> No.37717327

I guess I should say most of the questions are OK. I think asking like "what cisco command do you use for action X" is fair game, but the stuff like "what is the back-plane bandwidth of the 3850 X switch" just jimbles my jambles.

>> No.37717336

on the test objectives does it at least tell which hardware to study? or is it just a crap shoot

>> No.37717355

set up a vpn. use free pfsense as your vpn concentrator.

>> No.37717361

>have to read a chapter for next class' test
>"Welcome to Hell"

>> No.37717365

Not the guy, but I've taken CCENT, CCNA, and two parts of CCNP and I don't think I've ever seen a question that specifically asks for hardware stuff.

>> No.37717397

Just know that the startup config is stored in NVRAM, and that the OS itself lies within flash. Might ask about where the machine looks for the OS first (TFTP) but they rarely ask hardware questions.

>> No.37717398


>> No.37717410

Fuck, meant startup-config file.

>> No.37717437

Fucking Cisco needs to hire professional writers to help write their text-books instead of just relying on the autists that they do now.

>> No.37717454

>mfw I would never type copy running-config startup-config because i just type "wr" instead

>> No.37717509
File: 22 KB, 800x450, Cisco_logo.svg.png [View same] [iqdb] [saucenao] [google] [report]

this has actually been a good networking thread. i've been here the whole time and have been posting frequently. so thanks to everyone who contributed, i figured it would just turn into a battlestation thread or something like usual

>> No.37717512

Why not pay people to create good videos?

You rather spend 60 hours watching videos,that you watch 60 times?

>> No.37717533

maybe cisco knows all these sites like cbtnuggets do a great job already, so they don't bother making videos themselves.

>> No.37717538


>> No.37717539

Cisco is overrated and will be out of business in 10 years.

>> No.37717560

they literally invented routers, i think they'll be ok.

juniper is doing really well though

>> No.37717566

in those 10 years i'll be making dosh then with my certificate? serious question here.

>> No.37717585

don't listen to him, cisco is going to be around forever much like microsoft or google

>> No.37717595

I mean create a highly detailed series that last 60 hours total,that will provide you with enough information that would allow you to get your CCNP or CCIE.

Then all you need to do is watch the videos over and over many times.

Also provide a few hundred labs,and exercises that provide a wide assortment of scenarios ranging from the practical to the theoretical.

Maybe create another series that teaches you how to script,and what not inorder to create good sys admins

>> No.37717626

don't forget companies paid big money for their equipment. Companies and organizations will run them,until the hardware gives up.

Therefor people who know CISCO will always be in demand.

COBOL is still big...

>> No.37717713


>> No.37718146

Considering their CEO is connected with pretty much everyone, they'll be fine.

>> No.37718163

hey /g/uys, I'm thinking of switching my major to networking instead comp sci. I'm just don't think I'm good enough at programming, and networking seems interesting although I don't know much about it. Does anyone have some resources that would be useful?

>> No.37718246

Have you tried the Aruba Wireless stuff?

It's really great and they have an awesome web interface instead

>> No.37718280

What type of networking?

Download a copy of CCNA/CCENT ICND1 100-102 on tpb

Networking can literally be how to use Windows Server to Laying cables

>> No.37718309

Your school offers Networking as a degree? Can I see your school's website?
I would think CS would be a better degree IMO.
You can learn networking in the field, but it's harder to learn a language during work.

>> No.37718389

It's a community college, btw.
Computer Science

>> No.37718437

No thanks we're full.

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