IP-in-IP Tunneling Demystified – VPN Tunnels
thelinuxchannel 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
https://youtu.be/aWbQjuLvA7E 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
https://youtu.be/kpY0LbHV1ZU Refer my Google Drive export diagram of the net-tools :: ifconfig command implementation architecture: yellow boxes are the important APIs/functions gray boxes are the standard external APIs (such as…
Net-Tools Package – Source Code Walk – Ifconfig 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,…
Linux (user-space) RAW Socket Programming – Generate Layer-3 IP multicast OSPF Packets
https://youtu.be/BkQiZ5rSR8A Here is the Layer-3 IP multicast OSPF Packet raw sockets sample source-code discussed in the video: /*---------- The Linux Channel ------------*/ #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <netinet/in.h>…
Linux (user-space) RAW Socket Programming – Generate Layer-2 multicast STP Packets
https://youtu.be/UyQyPB1GX3U Here is the Layer-2 multicast STP Packet raw sockets sample source-code discussed in the video: /*---------- The Linux Channel ------------*/ #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <netinet/in.h> #include…
Linux (user-space) RAW Socket Programming – Generate VOIP SIP UDP Packets
https://youtu.be/2mCQjgpoLb0 Here is the VOIP SIP UDP Packet raw sockets sample source-code discussed in the video: /*---------- The Linux Channel ------------*/ #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <netinet/in.h> #include…
Linux (user-space) RAW Socket Programming – Generate Google’s QUIC Protocol UDP Packets
https://youtu.be/lcv_K7ScpGY Here is the QUIC Protocol raw sockets sample source-code discussed in the video: /*---------- The Linux Channel ------------*/ #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h> #include…