It is fairly common for organizations to want to subdivide their networks into smaller pieces for manageability purposes. Subnetting breaks a large network address space up into manageable pieces that administrators may assign to smaller subnetworks. Learn how to subdivide large networks using IP subnetting.
- [Instructor] It's fairly common…for organizations to want to subdivide their networks…into smaller pieces for manageability purposes.…This is where IP subnetting can provide…an effective solution.…Subnetting breaks a large network address space…up into manageable pieces that administrators…may assign to smaller networks.…For example, assume that you are using the 192.168…private address space on your network.…You might have a network that looks something like this,…with different departments connected…to different geographic regions.…
Instead of haphazardly assigning addresses…throughout your network, you might decide…that you want to use subnetworks.…The 192.168 address space normally…has the dividing line between network…and host addresses here.…Giving us a single network with…over 65,000 possible host addresses.…If we shift the dividing line to here,…we now have 256 possible subnetworks…with 254 possible hosts each.…
We go from one network with over 65,000 hosts,…to 256 networks with 254 hosts each.…While they may not all fit on the screen, you get the point.…
Learn about communication and networking best practices, including TCP/IP networking, network security devices, and secure network design and management. Instructor and cybersecurity expert Mike Chapple also includes coverage of converged protocols, network encryption, and wireless networking. You can find Mike's companion study books for this series at the Sybex test prep site and review the complete CISSP Body of Knowledge at https://www.isc2.org/cissp-domains/default.aspx.
- IP addressing
- Switches and routers
- Content distribution networks
- Designing secure networks
- Specialized networking
- Managing secure networks
- Working with virtualized networks like SDNs
- Detecting and preventing network attaches
- Transport encryption
- Wireless networking
- Host security
Skill Level Advanced
CISSP Cert Prep: 2 Asset Securitywith Mike Chapple58m 11s Advanced
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Virtualized Networks
Port isolation1m 47s
7. Network Attacks
8. Transport Encryption
9. Wireless Networking
10. Host Security
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.