This video explains the concepts of subnets, subnet ID, and subnet mask.
- [Instructor] A Subnet is a mechanism … to divide a Local Area Network or LAN … into multiple independent networks. … Creating Subnets improves security … by reducing visibility between hosts. … A host in LAN Subnet is not able to communicate directly … with its peers in another Subnet … without going through a router … which can monitor the traffic … and block the packets of necessary. … Think of a scenario in which there is only one network … for an entire LAN. … Once malicious users gain access to the network, … they can scan the whole network and obtain the details … of all the hosts in it. … Therefore, splitting a network into multiple sections … is one of the best network security practices. … Creating Subnets or Subnetting occurs … at the network layer which provides IP addresses. … Therefore, we use IP addresses to define a Subnet. … An IP Address consists of three parts, … Network ID, Subnet ID and Host ID. … Network ID is given to you … by your Internet Service Provider or ISP. …
- Goals of network forensics
- Using a syslog and Microsoft Log Parser
- Investigating network traffic
- How protocol analysis works
- ARP and DNS poisoning
- Working with network forensics tools
- Using packet sniffers
Skill Level Intermediate
Learning Cryptography and Network Securitywith Lisa Bock1h 45m Intermediate
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
What you should know2m 11s
1. Understanding Network Forensics
2. Preparing for a Network Forensics Investigation
3. Investigating Network Events
4. Investigating Network Traffic
5. Network Forensics Tools
Next steps1m 15s
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