MyMindsMadness

The Nightmare of Reserving IPs in IOS I recently had a case where some new servers were installed in to a Data Centre. However, there seemed to be some confusion around the IP configuration of the devices. Regardless of what the configuration should have been, the end result was that the devices were left plugged in with no IP addresses configured. The network that these server belong to is also isolated and has no access to other parts of the networking including the DHCP server. This presented a dilemma, either 1. an engineer woul

Check out our latest blog post. Where we look into configuring reserved DHCP addresses on a Catalyst Switch.
www.mymindsmadness.c...

Got 8 minutes to spare? Let's go from a Network engineer who has never wanted to touch python before and create a script that will teach you plenty of basics... Can't Code? NetToDev Supercut - YouTube

Calling #NetworkEngineers
#Learn to #Code in just over 8 Minutes

Go from a blank script to a working piece of code you can use in your Networks to interact with and perform changes in your network. Learning valuable python techniques.

youtu.be/OOfyiGjsBqQ

#shorts A Simple python 🐍 script and a small change to make our passwords a bit more secure. This is certainly not the only way to handle passwords but is c... Keeping #Secrets with GETPASS - YouTube

Last of my small series

A quick and simple way to handle secrets with GetPass in #python

youtube.com/shorts/e...

Will be releasing a supercut this week.

#DevNet #Cisco #Networking #NetEng

#shorts A Simple python 🐍 script, Maybe your organization always wants a change log for every change you make. Here we can learn to time/date stamp and wri... WRITE changes to FILE - YouTube

#DevNet

Being able to interact with a device is fun, but sometime we need to follow process and keep a record of the changes we make.

In this one, we learn how to create a timestamped change.log file
#Python #Programming #NetEng #NetworkEngineer
youtube.com/shorts/2...

#shorts A Simple python 🐍 script, test a connection to a device using a tool like Scrape CLI (ScrapLi) to retrieve a show command from a device.such as "sho... CONNECT via SSH to Cisco device #programming #coding #hardwarenetworking #code #networkengineer - YouTube

Who has been checking out our short series on learning #python ?
youtube.com/shorts/e...

#shorts A Simple python 🐍 script, Set up a connection to a device using a tool like Scrape CLI (ScrapLi) to prepare to retrieve a show command from a device... SETUP to Cisco DEVICE - YouTube

#devnet

youtube.com/shorts/S...

There are many tools to connect to devices a nice and simple one for your first connection is #scrapli (scrape cli)

In this video we set up our script ready to configure a device.

#programming #python #devops #neteng #networkengineer

#shorts As part of the Simple python 🐍 script we need a device to configure. This Video will walk you through reserving the Catalyst 8k IOSXE sandbox on htt... Setup FREE DEVNET Sandbox Cat8k - YouTube

youtube.com/shorts/G...

As part of this Simple python 🐍 script we have been developing, this week will actually start interacting with a device.

This Video will walk you through reserving the Catalyst 8k IOSXE sandbox

#networking #devnet #devops #programming

#shorts As part of the Simple python 🐍 script we need a device to configure. This Video will walk you through reserving the Catalyst 8k IOSXE sandbox on htt... Setup FREE DEVNET Sandbox Cat8k - YouTube

youtube.com/shorts/G...

As part of this Simple python 🐍 script we have been developing, this week will actually start interacting with a device.

This Video will walk you through reserving the Catalyst 8k IOSXE sandbox

#networking #devnet #devops #programming

#shorts A Simple python 🐍 script.Print statements are useful for us humans, but not great for programmatical use. Next step is to store our output in a mean... Using a LIST to STORE Config - YouTube

To print a line in #python 🐍 is a great way for humans to visualise. Programmatically it has little use.

To update the existing #script we learn how to store strings for later use inside a list. Subscribe to find out how to push this config. #devnet

youtube.com/shorts/I...

#shorts A Simple python 🐍 script. That modifies only 3 lines to turn this from a messy output to a well designed IP scheme#networking #devnet #devops #pytho... BETTER IP Scheme #programming #coding #code #networkengineer #python - YouTube

#DevNet #Python

By changing only 3 lines of our existing code. We go from a messy IP/VLAN scheme to something truly beautiful... Almost like we planned it.

Subscribe to see how we progress this and push it as config.

#programming #code #cisco #DevAsc

youtube.com/shorts/-...

In Part 4, we turn a script that lists a static IP address for all Private Class C /24 ranges, into a a script that generates usable configuration.

Stay tuned for part 5, where we learn to create a better IP and VLAN scheme.

#shorts A Simple python 🐍 script to iterate through all 3rd octet addresses within the private Class C range and produce the .5 address within them through ... Interface Config as output - YouTube

We are doing a YouTube #shorts series to help #NetworkEngineer's who want to learn code using #python
Taking a small single script that prints an IP address, evolving it to a script that configures multiple interfaces over multiple devices.
youtube.com/shorts/8...

#shorts A Simple python 🐍 script to iterate through all 3rd octet values and print the .5 address within it. e.g. 192.168.0.5192.168.1.5192.168.2.5...192.16... Looping Static IP Values - YouTube

Part 3 of this small video series.

Turning a nested for loop that prints every address in private class C range in to a static ip for every /24 within the Private C range.

Part 4 - (Out Monday) Turns this in to usable config!

youtube.com/shorts/k...

#shorts Expanding on the last script. This python 🐍 script takes printing all the addresses in a /24 range. transforming it in to a nested loop that allows ... Print RFC 1918 Private Class C - YouTube

#shorts

Expanding on the last script. This python 🐍 script takes printing all the addresses in a /24 range. transforming it in to a nested loop that allows you to print all the RFC Class C addresses

#networking #devnet #devops #python #programming

youtube.com/shorts/x...

#shorts A Simple python 🐍 script to iterate through all IP addresses in a single /24 network (192.168.0.0/24) Subscribe for more as we grow this simple code... Print /24 addresses - YouTube

A Simple python 🐍 script to iterate through all IP addresses in a single /24 network (192.168.0.0/24)
Subscribe for more as we grow this simple code in to something useable.

youtube.com/shorts/c...

#networking #devnet #devops #python #programming

Simple Network Python Script Hey there Networkers! There is plenty out there to help you learn python, but there is often a struggle to see how this is "relevant" to networking, which from experience can make starting to learn difficult. What use is knowing how to calculate every prime number to a networker?So here is a simple script that is designed to provide a little bit of relevance while providing some basic scripting elements. Overview • Simple Print of a single address • Print all addresses in a /24 (e.g.192.168.0.0/

Want to learn code, but struggle to find #Network examples?
I wanted to create a simple lesson to introduce networkers to coding with something they can relate to. What better than #IPv4
This blog takes you through printing every RFC1918 private address
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Git Repository Basics Let's get into Git version control as a networker trying to get into programming. This is not a blog covering all the different Git commands, (we will use a couple). Rather an idea of how you can template your Git repositories. Whether you plan to put them onto GitHub or not.Overview • Quick WSL install • Create Working Directory • Virtual Environments • A Dirty little script • Pip Freeze • Do not ignore gitignore • Initialize Git • First Commit • Modifying the script • Intro to Git Diff • A Sec

Really felt like writing tonight, when studying for my DevNet, I was learning about GIT, and found myself discovering lots of little bits all over the place.
So this blog aims to cover elements not in the exam, but good to know.
www.mymindsmadness.c...

#shorts possibly the coolest rack I have ever seen#networkengineer #networking super cool rack - YouTube

#NetworkEngineer

Is this a network #homelab must have?

youtube.com/shorts/v...

#YesterdaysCCNAQuestion

For those who selected fe80. This is a link local address.

#YesterdaysCCNAQuestion

Looks like I caught most of you out with this one. A global unicast Address can begin with either a 2 or a 3

At first glance this means there are 2 possible answers... But how many spotted the sneaky triple ::: in option 3? Format still counts.

Correct answer
3a2c::a1

#DailyCCNAQuestion #NetworkFundamentals

This weeks lab requires you to set up IPv6 in parallel with existing IPv4 configuration.

Download Here: github.com/MyMindsMa...

#CCNA #Cisco #Networking

#YesterdaysCCNAQuestion

Alot of people actually got this wrong, show ip in brief does not include the subnet mask.

The correct answer is
Show ip interface [type]
E.g. show ip interface g0/1

#YesterdaysCCNAQuestion

Didn't answer this yesterday but the correct answer was

Power over Ethernet (PoE)

With PoE, Devices such as VoIP phones, Wireless AP or some Raspberry Pis don't require a separate power supply. Which can save space, clutter and cost.

#YesterdaysCCNAQuestion

A fun question, but by default a device that does not perform ARP is a Switch (layer2).
People get this one confused because switches facilitate ARPs by forwarding the requests, but doesn't populate its ARP table In the process as it is not the source.

I am no web designer, but we have spent the last couple weeks trying to update our website.

So favour to ask, can you please visit & let me know your thoughts or any errors you find?

And if you would like to be added to our friends page let me know.

mymindsmadness.com

#YesterdaysCCNAQuestion

This one is trickier than you might think. The correct answer is
POST.

Most may assume the answer is GET as a means to retrieve the token.
But actually you Post your credentials the response gives you the required token.

#YesterdaysCCNAQuestion

The answer is Management Plane

Data plane deals with traffic as it traverses the network.
Control plane handles processes destined for the network device.

@_ChrisJHart has a great post on it. tinyurl.com/yd8dtzs7

#YesterdaysCCNAQuestion 2/4

What would be an advantage of automating network deployments?

Correct answer: Less human error

#YesterdaysCCNAQuestion 1/3

Catch up from bank holiday weekend

What tool can be implemented to help prevent DHCP Starvation attacks?

Correct answer DHCPSnooping

#YesterdaysCCNAQuestion

This was close,
Wrong first,
User exec mode ">" is the level to enter enable command
Authentication was successful that why you see the prompt.
There was no indication of missing secret.

When you are not authorised command can be return unrecognised