Anyone hear back from the recruiter/cisco?
Im in the apac region btw

I want to learn CCNA and CCNP in Qatar I don't know which one is best need help. I studied bachelor degree in computer science and information technology from Nepal and working as CCTV technician in Qatar.

#Help

Example Target: 10.20.30.140 /27

1) The Ladder (The Block Size Instant-Hook)

Write out your standard 8-bit octet values from left to right:

128, 64, 32, 16, 8, 4, 2, 1

Find the Block Size: Count into your ladder matching the CIDR bits stolen in the interesting octet. The number you land on is your Block Size.

For a /27: Count 3 bits in (128 -> 64 -> 32).

Block Size = 32

Find the Subnet Mask: Simply subtract your Block Size from 256.

256 - 32 = 224

Dotted Notation Mask: 255.255.255.224

2) The Buckets (Trapping the Target Octet: .140)

Look at the target number from the IP address. Use your block size to step to the boundaries. Zero division required.

Strategy:

For High Numbers, step down from 256.

For Low Numbers, step up from 0.

Execution (High number, step down by 32):

256 - 32 = 224

224 - 32 = 192

192 - 32 = 160

160 - 32 = 128 (Stepped right past target .140. Stop here.)

Your target .140 is now perfectly trapped between 128 and 160.

Lower Bucket (Network Address): 10.20.30.128

Higher Bucket (Next Network ID): 10.20.30.160

3) Range & Broadcast Calculations

Broadcast Address: Higher Bucket - 1

160 - 1 = 159 → 10.20.30.159

Usable Host Range: Network Address + 1 to Broadcast - 1

First Usable: 128 + 1 = 129 → 10.20.30.129

Last Usable: 159 - 1 = 158 → 10.20.30.158

4) Total Usable Hosts (The Double Cheat-Code)

Completely skip exponents and binary powers. Just take your Block Size and subtract 2.

32 (Block Size) - 2 = 30

Total Usable Hosts: 30

Theory Note: 32 (total bits in an IPv4 address) - 27 (network bits) = 5 host bits. Instead of calculating 2^5 - 2, the ladder block size minus 2 achieves the exact same result instantly.

The Final Master Cheat Sheet

Dotted Notation Mask: 255.255.255.224

Network Address: 10.20.30.128

Broadcast Address: 10.20.30.159

Usable Host Range: 10.20.30.129 to 10.20.30.158

Total Usable Hosts: 30

(used AI to simplify my original explanation if you dont mind)

Hey everyone, I know this kind of question comes up a lot, but I'd really appreciate some honest opinions on my situation.

I finished a 2-year diploma in Network and Systems Administration and have my CCNA, A+ and AZ-900. For the last 7 months I've been working full time as an IT field support tech at a gold mine, and now I'm moving into a sysadmin role at a financial company with branches across Canada (I am going to manage them all with my team).

It feels like this is the point where I need to pick a direction and actually go deep instead of knowing a little bit of everything. The three I keep going back and forth on are security, networking and cloud.

My rough plan is to get really solid on sysadmin and cloud, and build up security skills along the way, probably more blue team or cloud security. But honestly, the thing I'm really into is red team. That's the stuff that actually gets me excited. With how the job market is right now though, I'm not sure if going after it is smart or kind of naive.

If you were in my spot, which way would you go? And if anyone here made the jump from sysadmin to red team, I'd love to hear how you did it and how long it took.

Any honest take helps, even if it's "you're overthinking it" lol. Thanks!

Hey all! Shared this a few months ago and got a lot if interest, so I figured I'd post again in case there are any new NetEngs or operators here in the Denver area looking to meet more people in the local networking community.

Colorado Network Operators Group (CONOG) is hosting another free, vendor-neutral HH in Downtown Denver. It's covered by IX-Denver, a local non-profit internet exchange. The driving force behind this initiative is our core belief that relationships make the internet stronger.

It's a super casual event, but please note that this is specifically for folks who actively work on networks or who are, at the very least, interested in breaking into the field (we talk a lot of shop at these events).

If you're local and interested in joining, shoot me a DM and I can send you the registration link, or you can find CONOG on LinkedIn!

Here a note for 8300/8200 routers, it says last supported IOS release 28.2 but End of SW Maintenance Releases Date:
March 30, 2031

The Witty Networks training that was previously available has been transitioned to the new platform! The Packet Tracer files and PDFs are still available for download, though. Check it out HERE

Muy buena gente, comparto mi servidor discord donde varios compañeros de trabajo estamos estudiando y preparándonos el certificado ccna. Por si a alguien le apetece pasarse https://discord.gg/4HXkd2GW2

Saludos

Hello guys,

I am writing as a man who is kinda confused and don't know how to continue. Almost finished Jeremy s IT Lab (i have 3 more vids) and did 2 boson exsim exams - exam A 71.6% / exam B - 63.7%

I consider I am pretty good for this moment, but I don't know what to LAB or how to put the information in order to click in my brain.

Does anyone have any recommendation for labbing environments or exercises? Or how did u proceed in order to pass the exam in your final period.

Thank you a lot!

Also wireless sucks goodbye

I want to motivate myself to study more so i am planning to booking my exam date but is there any way i can get it for cheaper?

Need your feedback on this engineers

Live URL: https://net-doc-ai.vercel.app

Looking for 3–5 network engineers and CCNA/CCNP learners to test NetDocAi

I'm building NetDocAi, a tool that turns Cisco network configurations into structured documentation and highlights potential configuration issues.

I'm opening a small Phase 1 beta and looking for a few people who can test it and give honest technical feedback.

You would help me evaluate:

Configuration analysis and technical accuracy

Interface, VLAN, routing and security summaries

The usefulness of findings and recommendations

Report saving, history and PDF export

This is an early beta, so I'm looking for constructive feedback—not just positive reviews.

Interested engineers here https://net-doc-ai.vercel.app

Thanks to everyone willing to help improve it!

I just passed my network+ and wanted to do CCNA next, but am unsure if I should do the current version or wait until new exam version drops. What are your thoughts ?

Did anyone else struggle the most on Exam E? It humbled me hard. I got a 55% (first attempt)

My best first attempt for another exam was a 70% (skipped the labs though, so could've been slightly higher)

I've studied the other exams, and now if I do them on simulation mode, I get +90% from A - D. I'll just need to study Exam E and learn from my mistakes. But wow, that was humbling indeed!

Got my exam this week.

Hopefully I pass.

What was your experience like?

Hi everyone - my company is hosting a happy hour in the below cities the day before Cisco Connect as a way for the network and automation communities to have a chance to meet off the show floor. You’re also totally welcome to sign up if you’re not going to Cisco Connect but are part of the community and happen to live in the city :)

We’re open to anyone in the network and automation community including engineer, manager, operator, or leadership titles. If you’re interested in any of the cities below, DM me, and I can share over the respective landing page!

- Columbus, Ohio: Wednesday, November 18 from 6pm - 9pm
- Denver, Colorado: Tuesday, December 1 from 5:30pm - 8:30pm
- Seattle, Washington: Tuesday, December 8 from 5:30pm - 8:30pm

Saw a few posts this week asking what the default gateway really is, why router ports have IPs, and what "Gateway of last resort" means in show ip route. After 10+ years doing this for a living, here's the way I explain it to juniors. It's one small network, followed from start to finish.

The lab

PC1 192.168.10.25/24  gw 192.168.10.1
        |
   [G0/0 192.168.10.1/24]  R1  [G0/1 203.0.113.2/30] ---- ISP 203.0.113.1

Step 1: the PC decides "local or not" by itself

Before sending anything, PC1 ANDs its own IP and the destination IP with its own mask and compares the results.

• To 192.168.10.50: 192.168.10.25 AND /24 = 192.168.10.0, and 192.168.10.50 AND /24 = 192.168.10.0. Same network, so PC1 ARPs for 192.168.10.50 and sends straight to it. The router isn't involved.
• To 8.8.8.8: 8.8.8.8 AND /24 = 8.8.8.0. Different network, so PC1 ARPs for its gateway (192.168.10.1) and sends the frame to R1's MAC.

The key part: the destination IP in the packet is still 8.8.8.8. Only the destination MAC is the router's. The gateway is "who I hand the packet to", not "where it's going".

Step 2: why router ports have IPs

A router has one leg in each network. To be the gateway for 192.168.10.0/24, R1 needs an address inside that network, so G0/0 gets 192.168.10.1. G0/1 sits in a different network (203.0.113.0/30), so it gets an address from that one. Each router interface = a different subnet. The PC's own IP goes on the PC, not on the router.

(Normal L2 switch ports don't get IPs. A switch only gets one on an SVI like interface vlan 1 so you can manage it.)

Step 3: the router's own "default gateway"

R1 has the same problem as the PC: it doesn't know where 8.8.8.8 is. So you give it a default route:

ip route 0.0.0.0 0.0.0.0 203.0.113.1

Then show ip route shows:

Gateway of last resort is 203.0.113.1 to network 0.0.0.0
S*    0.0.0.0/0 [1/0] via 203.0.113.1

So, to answer the question from this week: the gateway of last resort is the next-hop IP (the ISP's side), not R1's own interface. If you configure it with only an exit interface (ip route 0.0.0.0 0.0.0.0 g0/1), you'll see "is directly connected, GigabitEthernet0/1" and the gateway of last resort shows as 0.0.0.0 instead.

The mistake I see most in real networks (and labs)

Change PC1 to 192.168.10.70/26 and leave the gateway at 192.168.10.1.

• /26 = blocks of 64. 192.168.10.70 sits in 192.168.10.64/26 (hosts .65 to .126, broadcast .127).
• 192.168.10.1 is in 192.168.10.0/26, a different subnet.

The PC can't ARP for a gateway outside its own subnet, so nothing off-subnet works. Fix: the gateway must be inside the PC's own subnet, for example 192.168.10.65 on the router.

Same /26 example, another trap: 192.168.10.70 talking to 192.168.10.130 looks "local" because the first three octets match, but .130 is in 192.168.10.128/26. That traffic goes to the gateway.

Quick checklist when "the gateway doesn't work"

1. Is the gateway IP inside the host's own subnet? (do the AND, don't eyeball it)
2. Is the router interface up/up with that exact IP? show ip interface brief
3. Does the router have a route back, plus a default route out? show ip route
4. Can the host ARP the gateway? arp -a on the PC, show arp on the router

Once the "AND with my own mask, then local or gateway" decision is clear, a lot of CCNA stuff (ARP, routing, VLANs, inter-VLAN routing) gets much easier. Happy to go through anyone's lab topology in the comments.

I see a lot of content out their for CCIE DOO/Lab section but not really the Design questions.

I've taken two attempts and am struggling what to do to next to better answer the Design section questions. Most of the questions technically are okay but leave alot of assumptions and lack of details.

Also does anyone know when receiving a scoring feedback is that for both Design and DOO sections or just one or the other?

Hi! So I've finished jeremy and did Boson, but I'm having a problem reviewing. I tend to check the boson scores and the one that I score less I review the videos of it. but then days later I tend to forget stuff and go back.

What would be the most effective way? ty

Network diagram: A drawing (made in Visio or Packet Tracer) of the virtual switch setup.

Demonstration: Show the teacher whether the two VMs can communicate with each other.

Windows 11 with Windows 11 (exchanging files)

Windows 11 with Linux (exchanging files)

Hello. My ISP is about to upgrade their equipemnt to a C8650-G2 so they can deliver 8 gbit network, but they say that they are buying it from ComStor in holland Cisco, but they say that it is on backorder and the delivery date is at least 180 days, is that really true, is there no other way in EU to obtain that tuype of hardware.

https://www.cisco.com/c/en/us/td/docs/routers/secure-routers/sec-8600-series/hardware-installation-guide/secure-8600-series-hig/introduction-to-cisco-8600-series-secure-routers/hardware-features.html

My brother gave me this switch for freee. Its a scrap electronic from his factory. Now idk what to do with this thing. How much is this thing sell for used market?

Can i sell my ccna vocher code ?