- [Instructor] Port isolation is a network…security technique that is particularly useful…when users of the network…do not trust each other…and are not trusted themselves.…I'm using the term port isolation in this video…because it's the term used by ISC2.…Networking professionals typically…call this technology private VLANs.…Port isolation and private VLANs are the same thing.…The way that port isolation works is pretty simple.…When configured on the switch,…port isolation limits traffic…from a device plugged into a particular port…to a single destination port.…
For example, if port isolation is turned on…and configured so that a network port…is only able to communicate…with the uplink port used…to connect a switch to the rest of the network,…systems plugged into the isolated port…will be unable to communicate…with other devices on the same switch…using the data-link layer.…Why would you want to do this?…Well, port isolation prevents…devices on the same switch…from communicating with each other.…This blocks many types of attacks,…
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- TCP/IP networking
- Network security devices
- Switches and routers
- Content distribution networks
- Storage networks
- Securing networks
- Network attacks
- Wireless networking and security
Skill Level Intermediate
Q: This course was updated on 07/27/2018. What changed?
A: New videos were added that cover network relationships and security device placement.
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
Networks and communications1m 31s
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Network Attacks
7. Wireless Networking
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