All Questions
22
questions
2
votes
1
answer
177
views
Does total network traffic being higher than the bit rate of a device's ethernet controller affect the controller?
I am using a Wago 750 ethernet controller on a local network that is at its peak hitting ~38,000,000 bits / second as per Wireshark. The Wago is becoming semi-unresponsive around the time of this ...
- 23
0
votes
1
answer
69
views
From a computer connected in Wifi, can I see the traffic of ethernet-connected computers, with Wireshark?
In the following network, if I open Wireshark on ComputerA, can I see the traffic of ComputerB (to internet) with Wireshark?
____________________
| Home router |
| (provided by ISP) |
| 192....
- 1,916
0
votes
0
answers
297
views
How to capture packets at the Ethernet layer on a SOCKS5 proxy server?
When I capture packets with tcpdump on an Ubuntu 20.04 VM running a SOCKS proxy server on port 1080, they are often larger than 1500 bytes. My network device has an MTU of 1500, so as far as I ...
- 1
1
vote
2
answers
668
views
Send Data Across NICs Using socat
I'm working on a project trying to develop a data diode for unidirectional transfer of data, and I'm hoping to use socat for some measurements. As a first step, I want to use socat to send data from ...
- 11
8
votes
1
answer
3k
views
Why, if I am connected via Wi-Fi and send a packet to another device in the same Wi-Fi, the dest MAC address in the link layer is not the AP's?
In the IEEE 802.11 protocol, in the link frame, the second address is the sender MAC address, and the first address is the receiver MAC address, which is the AP address if the sender is a station, and ...
- 254
1
vote
1
answer
396
views
Start network capture as soon as interface is up
I'm trying to debug the network traffic that happens right when a USB RNDIS network adapter is plugged in. Right now I can use Wireshark to analyze the traffic after the USB has already been plugged ...
- 284
1
vote
1
answer
688
views
How to capture wireless packets over Ethernet port along with Wired
I am trying to capture and analyze my network traffic. We have a wireless router and it have clients as both wired and wireless.
My Kali computer which is connected to the router over Ethernet port ...
- 11
2
votes
1
answer
146
views
Using Wireshark to understand layering and Ethernet MAC Frames
Wireshark Screenshot
I have to fill out some information for a project and I am not sure where to find the information requested. I believe I have the destination and source MAC address correct. But ...
2
votes
1
answer
2k
views
Client not responding TCP SYN-ACK packet ethernet driver
I am developing an Ethernet driver and implementing TCP exchange code. To test my TCP code this is the scenario (monitored on wireshark):
Server: Custom Ethernet device
Client: PC
I opened ...
- 23
1
vote
0
answers
375
views
How can I run Wireshark in Windows Safe Mode
I'm trying to replicate a customer problem so I can troubleshoot. They're sending data down to our product at 5ms, according to the Wireshark logs they sent us. Because my company's computers are ...
- 380
3
votes
1
answer
2k
views
Unknown Ether type 0x880a and 0x5524 in Wireshark capture
Since last several days, task manager shows 200-300Kbps (with small b) receive networking at idle time without opening any application. Though I block all apps in firewall (except system PID 4), task ...
- 11.3k
7
votes
1
answer
10k
views
Why do i see Ethernet II protocol in wireshark in wireless connection?
I have a small network in my home that consists of one network device named airties rt-205 and clients. Clients connect to this device via wireless and send its packet to the internet through this ...
- 105
0
votes
1
answer
1k
views
Monitoring Cisco Catalyst 2960-S with Wireshark
I would like to debug an application that send ethernet packets from one embedded device to another.
In the lab setup, these devices are connected through Cisco Catalyst 2960-S switch.
For debugging ...
- 363
0
votes
1
answer
2k
views
Large number of "MAC CTRL" packets - network port defective?
I've got a server that's displaying odd behaviour on one of it's network ports. It seems unable to process/respond to any traffic (ping etc.). Below is what is listed using 'ifconfig' (assigned static ...
- 113
1
vote
0
answers
375
views
Ethernet UDP First Received Packet is Delayed. Why?
I have a PC exchanging data using gigabit Ethernet with some custom hardware. My problem is that when data physically arrives on the network card (checked with an oscilloscope), the first frame is ...
- 111