Smart NIC Cards
thelinuxchannel NIC Cards (Network Interface Cards) traditionally contain controller chip which takes care of the core aspects, such as packet reception, buffering (till they are read by OS device drivers), etc.…
Linux (user-space), Systems Architecture and Networking
IPUtils – Source Code Walk
IPUtils is a popular Linux Open-Source package which includes various utilities for Linux networking such as ping, arping, ping6 and so on.
C code to check valid IP Address (IPv4) – Live Demo and Example
Here is my sample source-code discussed in the video: you can compile the same via:
UDP sample socket code for Systems and Network software developers
Here is my sample UDP socket code written in C. Unlike other versions you get commonly on-line this version is focused towards systems and network software developers and as a…
Coding a simple look-up-table in C – without Linked lists and a binary search
Linked-lists is one of the most commonly used data-structures to store linear dynamic items such as while commonly coding in C/C++ which is also the case in the Linux Kernel…
IP-in-IP Tunneling Demystified – VPN Tunnels
There can be many ways one can architect VPN Networks. The end objective is to tunnel private IP (typically LAN subnets) within public IP Networks (such as Internet). You can…
VRF – Virtual Routing and Forwarding – VLANs and VRFs
https://youtu.be/S4FUhSCpT0U
VRF – Virtual Routing and Forwarding – Introduction
Refer:Wiki – Virtual routing and forwarding ↗What is VRF: Virtual Routing and Forwarding ↗VRF Lab WorkBook ↗Network Virtualization ↗LINUX VRF ↗
Net-Tools Package – Source Code Walk – ARP Command – Part 1
net-tools is a popular Linux Open-Source package includes the important user-space tools for controlling the network subsystem of the Linux kernel. Which includes arp, rarp, ifconfig, ipmaddr, mii-tool, netstat, rarp,…
Net-Tools Package – Source Code Walk – Ifconfig Command – Part 2
Refer my Google Drive export diagram of the net-tools :: ifconfig command implementation architecture: