Join Mike Chapple for an in-depth discussion in this video Public and private addressing, part of CompTIA Security+ Exam Prep (SY0-401): Network Security.
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- As we've discussed throughout this course,…IP addresses uniquely identify systems on a network.…TCP/IP compatible devices use these addresses…to correctly route packets across networks.…But how are these addresses assigned?…IP addresses come in two forms;…public addresses, which are assigned by a…central network authority, and may be used to reach…systems located across the internet,…and private addresses, which are available…for anyone's use, but may only be used…on local networks, and will not work across the internet.…
Let's begin by discussing public IP addresses.…These addresses are centrally managed by a group known as…the Internet Corporation for Assigned Names and Numbers,…or ICANN.…ICANN breaks addresses up into blocks,…and gives them out to regional authorities…in different countries for distribution.…These regional authorities each take responsibility…for a geographic portion of the world.…For example, the American Registry for Internet Numbers,…or ARIN, governs the distribution of IP addresses…in the United States and Canada.…
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- Working with the TCP/IP suite
- Securing switches and routers
- Configuring firewalls
- Setting up virtual private networks (VPNs)
- Detecting and preventing network intrusions
- Implementing unified threat management
- Using public and private network addressing effectively
- Segmenting networks
- Virtualization and cloud computing
- Managing secure networks