note that if you want to play with writing your own network stack on linux, you can use `socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL))` and operate on not too d

note that if you want to play with writing your own network stack on linux, you can use `socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL))` and operate on not too dissimilar level of abstraction as this is. SOCK_RAW packets are passed to and from the device driver without any changes in the packet data. When receiving a packet, the address is still parsed and passed in a standard sockaddr_ll address structure. When transmitting a packet, the user-supplied buffer should contain the physical-layer header. That packet is then queued unmodified to the network driver of the interface defined by the destination address. https://man7.org/linux/man-pages/man7/packet.7.html https://man7.org/linux/man-pages/man7/packet.7.html