Anonymous ID: 79da1b July 22, 2025, 7:54 a.m. No.23362568   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>2584

>>23362541

Yes, the MAC address is not available at Layer 4 which is what the board sees.

 

Networking 101

Layer 2 (Data Link):

This layer is responsible for managing access to the physical network medium. It uses MAC addresses to identify devices within the same local network segment (LAN).

 

Layer 4 (Transport):

This layer manages the reliable delivery of data between applications on different devices. It uses IP addresses to route traffic across networks and relies on protocols like TCP and UDP.

 

MAC Address Location:

MAC addresses are embedded within the frame header of network packets, specifically at the Data Link layer.

 

IP Address Location:

IP addresses are used at Layer 3 (Network layer) and are included within the packet header.

 

Why not Layer 4?

MAC addresses are not directly used at Layer 4 because they are specific to the local network and not routable across the internet. Layer 4 deals with end-to-end communication between devices, which requires IP addresses for routing across different networks.

Anonymous ID: 79da1b July 22, 2025, 8:18 a.m. No.23362678   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>23362667

The kid that blew a 0.0 on the breathalyzer and then was arrested is still having his case heard in court. The cop said he didn't care what the breathalyzer said, that he could judge impairment better than the device should lose his job.