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#1

Homework Help / Re: How to study network layer...

Last post by icecream-guy - Today at 08:26:55 AM

Have you read Cisco Press - CCIE Professional Development Routing TCPIP, Volume I ?

#2

Homework Help / Re: How to study network layer...

Last post by networkloser - Yesterday at 12:25:44 AM

I know subnetting. Routing algorithms make me faint.

#3

Homework Help / Re: How to study network layer...

Last post by deanwebb - December 22, 2025, 07:23:42 PM

i know ipv4 has 32 bits. ipv4 datagram format etc. only. not a lot i can recall.

Start with this information: http://www.tcpipguide.com/free/t_IPSubnetAddressingSubnettingConcepts.htm

Sections linked from the main page, and keep in mind that classless addressing is how we do things. A/B/C networks aren't used like that anymore, thanks to private IP spaces defined in RFC 1918.

#4

Homework Help / Re: How to study network layer...

Last post by icecream-guy - December 22, 2025, 06:32:53 AM

start with subnetting, learn to subnet, it is the basis of network layer,  once you can subnet, the network layer will be more understandable.

#5

Homework Help / Re: How to study network layer...

Last post by networkloser - December 22, 2025, 04:57:16 AM

i know ipv4 has 32 bits. ipv4 datagram format etc. only. not a lot i can recall.

#6

Homework Help / Re: How to study network layer...

Last post by deanwebb - December 19, 2025, 08:22:51 AM

That's a very broad range. You need to start somewhere. I would pick first IP Addressing, as that is the number one area that everything starts with, and it's IPv4 that's out there for the most part. IPv6 exists, but v4 is still dominant. What you learn for v4 will be handy for v6, so there's that.

What do you already know about v4? From that, we can look at resources for getting that totally covered before going into the other topics.

#7

Homework Help / How to study network layer and...

Last post by networkloser - December 18, 2025, 06:29:28 AM

Ok..I have tried to study network layer from Kurose Ross for quite a bit but failed to understand. Stallings network book also went out of my head.

Now I am scared to learn about network layer because I think it is too difficult.

Let's face the fear by naming it.

Network layer means these concepts:


- datagram and virtual circuit

- routing principles and algorithms

- internet protocol (IP)

- ip addressing

- ip transport

- fragmentation and assembly

- ICMP

- routing on the internet

- RIP, OSPF

- router internals

- ipv6


I am learning this for exam but you can consider general way of learning for understanding. No such restrictions of time and stuffs.


What approach is best for this learning?

#8

Certifications and Careers / Re: Current Certification Goal...

Last post by deanwebb - October 08, 2025, 03:46:40 PM

Indeed. I just got my foundations of AI cert from ISC2.

#9

Certifications and Careers / Re: Current Certification Goal...

Last post by Otanx - October 08, 2025, 10:22:17 AM

New AI cert coming from CompTIA. Figured you might want to take a look at it. Free exam attempt if you qualify based on your experience with AI.

https://www.comptia.org/en-us/experts/become-a-subject-matter-expert/workshops/secai-beta-exam/

-Otanx

#10

Certifications and Careers / Re: Current Certification Goal...

Last post by deanwebb - September 24, 2025, 07:13:35 PM

Congrats. Was it one of the ISC2 certs? Those are pretty well recognized.

-Otanx

This was a Qualys one. I'm next planning to do some AI Security courses with ISC2.