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Articles on networking, security and the internet.
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Results: 4
Troubleshooting2 min read
169.254 mean? Troubleshoot DHCP issue step by step
If the computer receives an IPv4 address starting with 169.254, this may indicate that it is not receiving the expected DHCP configuration. Examine the link layer first, then address distribution.
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Discovery2 min read
Reading ARP table with device inventory
The ARP table provides useful clues about IPv4 neighbors; however, it is not a complete list of all devices on the network. Separate cache logging and current availability.
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Discovery2 min read
Why doesn't IPv6 neighbor discovery use ARP?
Porting discovery assumptions that worked for IPv4 to the IPv6 network produces incomplete results. Neighbor discovery and the size of the address space require a different approach.
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Essentials2 min read
What Is an IP Address and How Does It Work?
The basics of IP addresses, the difference between IPv4 and IPv6, and how the internet handles addressing.
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