All Questions
Tagged with network-interfacelinux-kernel
32 questions
1vote
0answers
122views
Is it a good idea to modify linux driver for asix ax88279(without data sheet) to receive hardware time stamps for every ethernet packet
I was searching for USB to Ethernet Adapter that supports PTP with an external clock and also is able to h/w time stamp NON PTP Packets with its own clock. We need this for capturing packets with high ...
0votes
0answers
84views
Why receiving TCP network packets require more memory bandwidth and CPU utilization than transmitting packets?
I am analyzing an ARM system with Linux kernel 5.15 running. I am running iperf3 to measure the network throughput between two ARM systems. Note that these are simulated systems and are loosely ...
- 115
1vote
1answer
175views
Use parrent attribute "serial" in UDEV configuration to assign lan interface another name instead of relying on the mac address
Given this kernel problem awaiting to be fixed and that randomly assign mac address to this usb3 lan adapters: Debian 12 - All of sudden my USB3 Lan adapter get assigned random mac address each reboot ...
- 3,074
3votes
2answers
236views
How does the Linux Kernel store hardware TX and RX filter modes?
I am working on a C program which gets the timestamping information for a given network interface, like my own version of ethtool. My goal is to get the information printed by $ ethtool -T myNetIf. ...
- 63
1vote
1answer
380views
Can I trigger an auto-negotiation of an interface using the ethtool userspace API with NETLINK sockets?
I would like to replicate the behavior of ethtool -r when auto-negotiation is active in my C++ code with NETLINK sockets. I search the CLI ethtool source code and I found that they use IOCTL sockets ...
-1votes
1answer
2kviews
How to cancel the kernel's rename of the Network interface? [duplicate]
I compiled the kernel of Linux 6.4.0 myself and used busybox to create a root file system. I customized my own Linux system and installed it on an embedded board with four network ports, which were ...
0votes
1answer
150views
What impacts timestamping capabilities of a network interface?
I have two Linux virtual machines in VirtualBox 7.0. Machine 1: CentOS 6 with Linux kernel 2.6.32-754 Machine 2: CentOS 8 with Linux kernel 4.18.0-448 All network interfaces of machine 1 do not ...
- 111
3votes
1answer
290views
ATL1E : Interrupt coalescing / ringbuffer / offloads settings
According to lshw, I get a : product: AR8121/AR8113/AR8114 Gigabit or Fast Ethernet vendor: Qualcomm Atheros driver=ATL1E driverversion=1.0.0.7-NAPI (from linux-5.4) I would like to find a way to ...
- 8,497
2votes
2answers
340views
Linux hardware interface
I'm making a hardware project that will run a GNU/Linux OS, and I have a question.(edit: it's ARM based) How EXACTLY does the Linux kernel know what type of hardware is connected to the CPU, I mean ...
6votes
1answer
1kviews
What constraints (if any) are there on network interface names on linux
In https://stackoverflow.com/questions/24932172/what-length-can-a-network-interface-name-have, it was asked how long a network interface name could be (apparently 16 bytes). However, the answers to ...
0votes
0answers
628views
How to disable TX path of ethernet PHY in embedded linux?
In a yocto-based embedded device I use ethernet only to receive UDP packets. Now I want save energy as the device (as well as the UDP transmitter) is battery powered, and the ethernet PHY (a micrel ...
- 13.7k
1vote
0answers
187views
Network bandwidth aggregation
Lets say I have access to two different networks: A and B. My device has two different network interfaces N1 and N2. A has a bandwidth of 5 mbps B has a bandwidth of 3 mbps I want to combine these two ...
- 53
0votes
0answers
741views
Hard Blocked In Kali Linux
When I boot up kali linux from virtual box I get no problems. Then when I type: ifconfig in the terminal sometimes my wifi adapter shows up right away and sometimes it doesn't but if it doesn't then I ...
1vote
1answer
561views
Multicast route not linking to userspace
Ok So I have a user space application that needs to get data from multicast traffic, however I cannot seem to get the traffic out of kernel space and into userspace where the application can utilize ...
- 73
2votes
1answer
2kviews
iptables -p with protocols other than tcp/udp
As per my understanding iptables work on transport layer (layer 4) and any packet filtering that happens is based on the ip protocols for layer 4 like tcp and udp. So if we enter protocols like esp, ...
- 39
