#subnetting — Public Fediverse posts

Subnet Machine upgrade! AI Instructor Bash is now integrated into our subnetting quiz — breaking down questions, explaining right/wrong answers, and getting you ready to subnet like a pro! #CCNA #Subnetting

Subnet Machine upgrade! AI Instructor Bash is now integrated into our subnetting quiz — breaking down questions, explaining right/wrong answers, and getting you ready to subnet like a pro! #CCNA #Subnetting

Regla de oro: Casi siempre asignamos un Segmento IP distinto a cada VLAN, pero siguen viviendo en capas diferentes del modelo OSI. 💡 #IPAddress #Subnetting #Infraestructura

3/4
🔹 Segmento IP (Capa 3): La dirección postal
Aquí es donde entran las direcciones IP y las máscaras de subred (192.168.1.0/24). Mientras la VLAN separa, el Segmento IP permite que los dispositivos se identifiquen y sepan hacia dónde enviar los paquetes.
Regla de oro: Casi siempre asignamos un Segmento IP distinto a cada VLAN, pero siguen viviendo en capas diferentes del modelo OSI. 💡
#IPAddress #Subnetting #Infraestructura

3/4
🔹 Segmento IP (Capa 3): La dirección postal
Aquí es donde entran las direcciones IP y las máscaras de subred (192.168.1.0/24). Mientras la VLAN separa, el Segmento IP permite que los dispositivos se identifiquen y sepan hacia dónde enviar los paquetes.
Regla de oro: Casi siempre asignamos un Segmento IP distinto a cada VLAN, pero siguen viviendo en capas diferentes del modelo OSI. 💡
#IPAddress #Subnetting #Infraestructura

3/4
🔹 Segmento IP (Capa 3): La dirección postal
Aquí es donde entran las direcciones IP y las máscaras de subred (192.168.1.0/24). Mientras la VLAN separa, el Segmento IP permite que los dispositivos se identifiquen y sepan hacia dónde enviar los paquetes.
Regla de oro: Casi siempre asignamos un Segmento IP distinto a cada VLAN, pero siguen viviendo en capas diferentes del modelo OSI. 💡
#IPAddress #Subnetting #Infraestructura

3/4
🔹 Segmento IP (Capa 3): La dirección postal
Aquí es donde entran las direcciones IP y las máscaras de subred (192.168.1.0/24). Mientras la VLAN separa, el Segmento IP permite que los dispositivos se identifiquen y sepan hacia dónde enviar los paquetes.
Regla de oro: Casi siempre asignamos un Segmento IP distinto a cada VLAN, pero siguen viviendo en capas diferentes del modelo OSI. 💡
#IPAddress #Subnetting #Infraestructura

For those folks who are studying networking for their #CCNA or other related networking certification and need practce questions for #subnetting, I always used to like subnettingquestions.com, and I'd say if you can solve them in your head in 10 seconds or less, you''re doing pretty good. BUT, I recently stumbled on subnettingpractice.com which feels like it has more real world scenarios in the questions. Feels a little harder to me, but also good to be able to solve them quickly and in your head. Good stuff!

For those folks who are studying networking for their #CCNA or other related networking certification and need practce questions for #subnetting, I always used to like subnettingquestions.com, and I'd say if you can solve them in your head in 10 seconds or less, you''re doing pretty good. BUT, I recently stumbled on subnettingpractice.com which feels like it has more real world scenarios in the questions. Feels a little harder to me, but also good to be able to solve them quickly and in your head. Good stuff!

For those folks who are studying networking for their #CCNA or other related networking certification and need practce questions for #subnetting, I always used to like subnettingquestions.com, and I'd say if you can solve them in your head in 10 seconds or less, you''re doing pretty good. BUT, I recently stumbled on subnettingpractice.com which feels like it has more real world scenarios in the questions. Feels a little harder to me, but also good to be able to solve them quickly and in your head. Good stuff!

Mein neuer, zusätzlicher Router ist scharf geschaltet und die Config mit 95% fast fertig 🫶

​Manchmal muss man das Netzwerk einfach neu strukturieren. Es gibt Dinge, die mag man nicht in jedem Protokoll haben 🏹 ​Besser getrennt und klar definiert. So arbeitet man sauber, das Netz ist so auch übersichtlicher und strukturierter 🖤

​​#DSGVO
#Subnetting
#ITSecurity
#NetzwerkArchitektur
#iot
#portforwarding
#stealth

Ever tried to find one specific book from inside a ginormous, single-roomed library? That's a network without subnets. Subnetting (FLSM/VLSM) is like having sections, floors, and aisles. CIDR notation (/24) is the library plan. It brings order to chaos, making routing efficient and secure. I finally "got it" when I started thinking binary. It's gorgeous, I promise!

#Networking #Subnetting #CIDR #SysAdmin #TechTalk

Managing #OpenWRT via #Ansible is a breeze. I just love the fact that all the settings, all the #firewall rules, all the good stuff is configured with config files.

I've created 6 #VLANs, all of them completely #isolated, with a few allowed traffic rules. I've even isolated the #Windows #PC of my roommate inside of the #trusted #network.

Now his #XiaomiTVBox can't scan the network anymore (yes it actually does that. I've noticed it while working on my packet monitoring project).

#networking #subnetting #subnet #homelab #selfhosting #openwrt #privacy #security #vlan #isolation #dmz

Managing #OpenWRT via #Ansible is a breeze. I just love the fact that all the settings, all the #firewall rules, all the good stuff is configured with config files.

I've created 6 #VLANs, all of them completely #isolated, with a few allowed traffic rules. I've even isolated the #Windows #PC of my roommate inside of the #trusted #network.

Now his #XiaomiTVBox can't scan the network anymore (yes it actually does that. I've noticed it while working on my packet monitoring project).

#networking #subnetting #subnet #homelab #selfhosting #openwrt #privacy #security #vlan #isolation #dmz

Managing #OpenWRT via #Ansible is a breeze. I just love the fact that all the settings, all the #firewall rules, all the good stuff is configured with config files.

I've created 6 #VLANs, all of them completely #isolated, with a few allowed traffic rules. I've even isolated the #Windows #PC of my roommate inside of the #trusted #network.

Now his #XiaomiTVBox can't scan the network anymore (yes it actually does that. I've noticed it while working on my packet monitoring project).

#networking #subnetting #subnet #homelab #selfhosting #openwrt #privacy #security #vlan #isolation #dmz

Managing #OpenWRT via #Ansible is a breeze. I just love the fact that all the settings, all the #firewall rules, all the good stuff is configured with config files.

I've created 6 #VLANs, all of them completely #isolated, with a few allowed traffic rules. I've even isolated the #Windows #PC of my roommate inside of the #trusted #network.

Now his #XiaomiTVBox can't scan the network anymore (yes it actually does that. I've noticed it while working on my packet monitoring project).

#networking #subnetting #subnet #homelab #selfhosting #openwrt #privacy #security #vlan #isolation #dmz

Managing #OpenWRT via #Ansible is a breeze. I just love the fact that all the settings, all the #firewall rules, all the good stuff is configured with config files.

I've created 6 #VLANs, all of them completely #isolated, with a few allowed traffic rules. I've even isolated the #Windows #PC of my roommate inside of the #trusted #network.

Now his #XiaomiTVBox can't scan the network anymore (yes it actually does that. I've noticed it while working on my packet monitoring project).

#networking #subnetting #subnet #homelab #selfhosting #openwrt #privacy #security #vlan #isolation #dmz

Ever wondered how devices seamlessly communicate across the digital world?

Learn about IPv4 vs. IPv6, the magic of subnet masks, and how CIDR notation keeps networks organized and optimized.

Read the blog post here: https://woodruff.dev/decoding-ip-addressing-and-subnetting-the-backbone-of-networking/

#Networking #IPAddresses #Subnetting

Ever wondered how devices seamlessly communicate across the digital world?

Learn about IPv4 vs. IPv6, the magic of subnet masks, and how CIDR notation keeps networks organized and optimized.

Read the blog post here: https://woodruff.dev/decoding-ip-addressing-and-subnetting-the-backbone-of-networking/

#Networking #IPAddresses #Subnetting

Ever wondered how devices seamlessly communicate across the digital world?

Learn about IPv4 vs. IPv6, the magic of subnet masks, and how CIDR notation keeps networks organized and optimized.

Read the blog post here: https://woodruff.dev/decoding-ip-addressing-and-subnetting-the-backbone-of-networking/

#Networking #IPAddresses #Subnetting

Ever wondered how devices seamlessly communicate across the digital world?

Learn about IPv4 vs. IPv6, the magic of subnet masks, and how CIDR notation keeps networks organized and optimized.

Read the blog post here: https://woodruff.dev/decoding-ip-addressing-and-subnetting-the-backbone-of-networking/

#Networking #IPAddresses #Subnetting

Ever wondered how devices seamlessly communicate across the digital world?

Learn about IPv4 vs. IPv6, the magic of subnet masks, and how CIDR notation keeps networks organized and optimized.

Read the blog post here: https://woodruff.dev/decoding-ip-addressing-and-subnetting-the-backbone-of-networking/

#Networking #IPAddresses #Subnetting

Lab 6.1 - Calculating Subnets
https://zpr.io/purEnNBBzkek
Learn how to calculate subnet addresses, network, and broadcast addresses, and identify the subnet an IP belongs to using an IP address and subnet mask. Master subnetting with simple steps and clear examples! #Networking #Subnetting #IPv4 #Mikrotik

Lab 6.1 - Calculating Subnets
https://zpr.io/purEnNBBzkek
Learn how to calculate subnet addresses, network, and broadcast addresses, and identify the subnet an IP belongs to using an IP address and subnet mask. Master subnetting with simple steps and clear examples! #Networking #Subnetting #IPv4 #Mikrotik

Lab 6.1 - Calculating Subnets
https://zpr.io/purEnNBBzkek
Learn how to calculate subnet addresses, network, and broadcast addresses, and identify the subnet an IP belongs to using an IP address and subnet mask. Master subnetting with simple steps and clear examples! #Networking #Subnetting #IPv4 #Mikrotik

Lab 6.1 - Calculating Subnets
https://zpr.io/purEnNBBzkek
Learn how to calculate subnet addresses, network, and broadcast addresses, and identify the subnet an IP belongs to using an IP address and subnet mask. Master subnetting with simple steps and clear examples! #Networking #Subnetting #IPv4 #Mikrotik

Lab 6.1 - Calculating Subnets
https://zpr.io/purEnNBBzkek
Learn how to calculate subnet addresses, network, and broadcast addresses, and identify the subnet an IP belongs to using an IP address and subnet mask. Master subnetting with simple steps and clear examples! #Networking #Subnetting #IPv4 #Mikrotik

Gibt's hier jemanden der #Subnetting gut erklären kann?
Ich habe das Prinzip verstanden, aber wenn ich vor einer Aufgabe sitze, weiß ich oft nicht, wo ich anfangen soll.
#IT #Fachinformatiker #Netzwerk #network

Gibt's hier jemanden der #Subnetting gut erklären kann?
Ich habe das Prinzip verstanden, aber wenn ich vor einer Aufgabe sitze, weiß ich oft nicht, wo ich anfangen soll.
#IT #Fachinformatiker #Netzwerk #network

Gibt's hier jemanden der #Subnetting gut erklären kann?
Ich habe das Prinzip verstanden, aber wenn ich vor einer Aufgabe sitze, weiß ich oft nicht, wo ich anfangen soll.
#IT #Fachinformatiker #Netzwerk #network

Gibt's hier jemanden der #Subnetting gut erklären kann?
Ich habe das Prinzip verstanden, aber wenn ich vor einer Aufgabe sitze, weiß ich oft nicht, wo ich anfangen soll.
#IT #Fachinformatiker #Netzwerk #network

Gibt's hier jemanden der #Subnetting gut erklären kann?
Ich habe das Prinzip verstanden, aber wenn ich vor einer Aufgabe sitze, weiß ich oft nicht, wo ich anfangen soll.
#IT #Fachinformatiker #Netzwerk #network

Old subnetting notes I had to dig up and refresh on while studying tonight. Enjoy!

Subnetting:

The representations of IP’s and prefixes (our masks) exist for each range. Whenever we see a /8, /16, or /24, the /number is a prefix, so 10.10.10.1 /24 is an address with a prefix. The classes listed for IPv4 aren't actually too scary when you space out exactly what is going on.

Let’s say we have a 255.255.255.0 mask

Try to look at it this way: Class A is X.Y.Y.Y Y being the hosts by number

If we have a /24 and need to understand how this translates:

255.255.255.0 is the value we end up with because the binary equivalent to 255 is 11111111

If we do this for every portion of our mask we get:

11111111.11111111.11111111.00000000

We end up with /24 because we are counting each set of 1's (11111111 + 11111111 + 11111111 = 24).

All we're essentially doing here when we subnet is counting the bits and looking at a mask.
If you look at it this way then the 2n-2 formula makes a lot more sense and becomes clearer.

What would be a /26 ? 11111111.11111111.11111111.11000000 or 24 +2

We added 2 bits to the sum we had when we converted and if we convert 11000000 again, we get 192 as a number. Then we subtract.

Resources:
https://subnetting.org

https://www.youtube.com/watch?v=ZxAwQB8TZsM

Old subnetting notes I had to dig up and refresh on while studying tonight. Enjoy!

Subnetting:

The representations of IP’s and prefixes (our masks) exist for each range. Whenever we see a /8, /16, or /24, the /number is a prefix, so 10.10.10.1 /24 is an address with a prefix. The classes listed for IPv4 aren't actually too scary when you space out exactly what is going on.

Let’s say we have a 255.255.255.0 mask

Try to look at it this way: Class A is X.Y.Y.Y Y being the hosts by number

If we have a /24 and need to understand how this translates:

255.255.255.0 is the value we end up with because the binary equivalent to 255 is 11111111

If we do this for every portion of our mask we get:

11111111.11111111.11111111.00000000

We end up with /24 because we are counting each set of 1's (11111111 + 11111111 + 11111111 = 24).

All we're essentially doing here when we subnet is counting the bits and looking at a mask.
If you look at it this way then the 2n-2 formula makes a lot more sense and becomes clearer.

What would be a /26 ? 11111111.11111111.11111111.11000000 or 24 +2

We added 2 bits to the sum we had when we converted and if we convert 11000000 again, we get 192 as a number. Then we subtract.

Resources:
https://subnetting.org

https://www.youtube.com/watch?v=ZxAwQB8TZsM

Old subnetting notes I had to dig up and refresh on while studying tonight. Enjoy!

Subnetting:

The representations of IP’s and prefixes (our masks) exist for each range. Whenever we see a /8, /16, or /24, the /number is a prefix, so 10.10.10.1 /24 is an address with a prefix. The classes listed for IPv4 aren't actually too scary when you space out exactly what is going on.

Let’s say we have a 255.255.255.0 mask

Try to look at it this way: Class A is X.Y.Y.Y Y being the hosts by number

If we have a /24 and need to understand how this translates:

255.255.255.0 is the value we end up with because the binary equivalent to 255 is 11111111

If we do this for every portion of our mask we get:

11111111.11111111.11111111.00000000

We end up with /24 because we are counting each set of 1's (11111111 + 11111111 + 11111111 = 24).

All we're essentially doing here when we subnet is counting the bits and looking at a mask.
If you look at it this way then the 2n-2 formula makes a lot more sense and becomes clearer.

What would be a /26 ? 11111111.11111111.11111111.11000000 or 24 +2

We added 2 bits to the sum we had when we converted and if we convert 11000000 again, we get 192 as a number. Then we subtract.

Resources:
https://subnetting.org

https://www.youtube.com/watch?v=ZxAwQB8TZsM

Old subnetting notes I had to dig up and refresh on while studying tonight. Enjoy!

Subnetting:

The representations of IP’s and prefixes (our masks) exist for each range. Whenever we see a /8, /16, or /24, the /number is a prefix, so 10.10.10.1 /24 is an address with a prefix. The classes listed for IPv4 aren't actually too scary when you space out exactly what is going on.

Let’s say we have a 255.255.255.0 mask

Try to look at it this way: Class A is X.Y.Y.Y Y being the hosts by number

If we have a /24 and need to understand how this translates:

255.255.255.0 is the value we end up with because the binary equivalent to 255 is 11111111

If we do this for every portion of our mask we get:

11111111.11111111.11111111.00000000

We end up with /24 because we are counting each set of 1's (11111111 + 11111111 + 11111111 = 24).

All we're essentially doing here when we subnet is counting the bits and looking at a mask.
If you look at it this way then the 2n-2 formula makes a lot more sense and becomes clearer.

What would be a /26 ? 11111111.11111111.11111111.11000000 or 24 +2

We added 2 bits to the sum we had when we converted and if we convert 11000000 again, we get 192 as a number. Then we subtract.

Resources:
https://subnetting.org

https://www.youtube.com/watch?v=ZxAwQB8TZsM

Old subnetting notes I had to dig up and refresh on while studying tonight. Enjoy!

Subnetting:

The representations of IP’s and prefixes (our masks) exist for each range. Whenever we see a /8, /16, or /24, the /number is a prefix, so 10.10.10.1 /24 is an address with a prefix. The classes listed for IPv4 aren't actually too scary when you space out exactly what is going on.

Let’s say we have a 255.255.255.0 mask

Try to look at it this way: Class A is X.Y.Y.Y Y being the hosts by number

If we have a /24 and need to understand how this translates:

255.255.255.0 is the value we end up with because the binary equivalent to 255 is 11111111

If we do this for every portion of our mask we get:

11111111.11111111.11111111.00000000

We end up with /24 because we are counting each set of 1's (11111111 + 11111111 + 11111111 = 24).

All we're essentially doing here when we subnet is counting the bits and looking at a mask.
If you look at it this way then the 2n-2 formula makes a lot more sense and becomes clearer.

What would be a /26 ? 11111111.11111111.11111111.11000000 or 24 +2

We added 2 bits to the sum we had when we converted and if we convert 11000000 again, we get 192 as a number. Then we subtract.

Resources:
https://subnetting.org

https://www.youtube.com/watch?v=ZxAwQB8TZsM

#Network #Subnetting

#Networking #Subnet #IPv4 #CIDR #CheatSheet

#Network #Subnetting

#Networking #Subnet #IPv4 #CIDR #CheatSheet

#Network #Subnetting

#Networking #Subnet #IPv4 #CIDR #CheatSheet

#Network #Subnetting

#Networking #Subnet #IPv4 #CIDR #CheatSheet

#Network #Subnetting

#Networking #Subnet #IPv4 #CIDR #CheatSheet