Practical Networking

9️⃣ There Are No Gaps Between IP Networks

IP networks are sequential. There are no gaps, no unused space in between, and no addresses that belong to nothing.

6:02

9️⃣ There Are No Gaps Between IP Networks

3,278 views

2d ago

Practical Networking

8️⃣ /0 and /32 and why Subnets only Double and Halve in size

A /0 is every IP address on the IPv4 internet. A /32 is exactly one IP Address. Everything you will ever configure sits somewhere ...

6:11

8️⃣ /0 and /32 and why Subnets only Double and Halve in size

4,175 views

9d ago

Practical Networking

7️⃣ Every IP Between Network ID and Broadcast Is Usable

Every IP address between the network ID and the broadcast IP is a valid host address, which makes finding the usable range a ...

3:32

7️⃣ Every IP Between Network ID and Broadcast Is Usable

3,377 views

2w ago

Practical Networking

6️⃣ Network ID means NOTHING without a Mask

A Network ID on its own tells you almost nothing. The IP 131.75.0.0 is the network ID of /16 and a /24 -- but depending on the ...

3:42

6️⃣ Network ID means NOTHING without a Mask

3,945 views

3w ago

Practical Networking

5️⃣ Network ID and Broadcast IP -- simply explained

Two IP addresses in every network are off limits: the Network ID and the Broadcast IP address. One identifies the group, the other ...

3:59

5️⃣ Network ID and Broadcast IP -- simply explained

4,660 views

1mo ago

Practical Networking

4️⃣ What is a Network ID? Identifying groups of IP Addresses

Every IP address belongs to a group, and that group has a name: the Network ID. Finding it takes one step: set every host bit to ...

1:29

4️⃣ What is a Network ID? Identifying groups of IP Addresses

2,037 views

1mo ago

Practical Networking

3️⃣ Why IP Addresses Are Split Into Network Bits and Host Bits

Splitting an IP address into network bits and host bits exists for exactly one reason: to create groups of addresses. Every IP ...

1:54

3️⃣ Why IP Addresses Are Split Into Network Bits and Host Bits

1,879 views

1mo ago

Practical Networking

2️⃣ Network Bits vs Host Bits -- determined by the Subnet Mask

A subnet mask has exactly one job: it decides which bits of an IP address are network bits and which are host bits. Change the IP ...

2:06

2️⃣ Network Bits vs Host Bits -- determined by the Subnet Mask

2,363 views

1mo ago

Practical Networking

1️⃣ CIDR, Subnet Mask, and Binary Subnet Mask Are the Exact Same Thing

CIDR notation, a dotted decimal subnet mask, and a binary subnet mask are three different ways of writing the exact same thing.

3:24

1️⃣ CIDR, Subnet Mask, and Binary Subnet Mask Are the Exact Same Thing

3,852 views

1mo ago

Practical Networking

Ask Me Anything - 280k Subs - reading RFCs, retaining information, book recommendations, infosec ...

AMA for crossing 280k Subscribers. Thank you all who have subscribed. These questions came from LinkedIn, Youtube ...

8:39

Ask Me Anything - 280k Subs - reading RFCs, retaining information, book recommendations, infosec ...

6,070 views

1y ago

ViewTube

Latest from Practical Networking