I have some software that can emulate things like BER and delays on the network. I need a way to test the BER module of the software to make sure it actually works correctly. My solution is to crea...

In an embedded system (2.4 kernel) I need raw socket access to the eth0 interface from a process not running as root. I tried to address this problem by setting the CAP_NET_RAW capability from th...

Is it possible to read the bits directly off the physical ethernet connection interface from a standard computer ethernet interface? e.g., suppose I want to use the ethernet jack of a laptop as a ...

I'm trying to use C to send raw ethernet packets via sendmsg(). This code successfully opens a raw packet socket, attempts to fill a struct iovec with a single array of bytes (char message[]), then...

I am attempting to capture localhost(loopback 127.0.0.1) TCP traffic between master-slave (server-client) programs on my PC. Wireshark cannot do this, but I understand that RawCap does. When I try...

I decided to add a tap interface and use it in my code , but I am able to get its state UP. sudo ip -f link tuntap add tap10 mode tap sudo ip link set tap10 up After this when I do "ip link" ta...

I have written a C program that is writing Ethernet frames directly onto the wire (which runs in two modes, sender or receiver). The sender is sending the frames with two VLAN tags on them (QinQ) b...

My Java application should control an external device (EtherCAT Bus technology) directly connected to the network interface of my computer(Ubuntu and Windows). No other network devices are connecte...

I have the following setup: client(eth0) --- (eth2) linux bridge (eth1) --- (eth1) server When I open a RAW socket on the linux bridge using fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); ...

I'm current working on a program that scans my network and discoveres computers and devices on the network. I use various operations to find data on the devices I discover, but want to distinguish ...

This question is not about timing something accurately on Windows (XP or better), but rather about doing something very rapidly via callback or interrupt. I need to be doing something regularly ev...

Question: I'm testing a section of cable-fault finding software, and I'd like to reliably and reproducibly generate cable faults on a cat5 cable. At the moment I'm using a meter length of untwis...

Is there a way to send raw packet Ethernet to other host via C#? In Windows 7 if it makes difference.