The network protocol analyzer developed and maintained by the Wireshark Foundation

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Tshark interface to sniff on

I have a MQTT broker and a MQTT client both running on the same machine. The client sends publish packets to the broker. The broker processes it and sends it back to the same client as publish packet. ...
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1answer
12 views

iperf and Wireshark show different data rate

I was testing the capture performance of a sniffer application in Linux. I have a Windows machine that sends UDP multicast packets to the capture port of the sniffer system using iperf at 8Mbits/s. I ...
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10 views

Using I/O graph how to interept bytes/tick against packet details information?

I'm working on a trace-file which has reported ISP throttling occurrences in it. My task is to use IO graph to understand at what point in time the throttling process effected client upload ...
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1answer
36 views

Get entire packets size in Wireshark

Is there a way to show the size of all of the packets received in Wireshark? For example, if I have 10 packets received and the size of each packet is 1 KB, then Wireshark would display: 10 KB.
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2answers
59 views

What causes dropping of ARP response packets in a wireless network?

I have a network of wireless access points (APs) in my local area network (LAN). Some PCs in the network can get ping responses from some other PCs/devices in the network but not some others. I have ...
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22 views

Monitor TCP port traffic and get a sound alert when a specific text string is found on Windows

I need to watch a port for several hours and make an audible alert whenever a specific string comes through. Windows only. Is this possible with Wireshark or another sniffer tool or maybe a sniffer ...
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20 views

router automatically disables wifi and enables after 2-3min

Router: Netgear DGN2200v2 Problem: THe router disables the wifi network automatically(with no human interference what so ever), thus all pc's disconnect and have no network access(as if the router ...
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1answer
61 views

Possible network loop with WiFi and Ethernet when docked

I have been seeing a weird problem that I can't reproduce on demand and have a suspicion on the root cause. The Issue: Intermittently the entire network goes down until I walk around and unplug ...
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1answer
123 views

tcpdump not displaying RSSI

I am monitoring Wi-Fi probe requests via tcpdump on Debian and am trying to capture the RSSI (signal strength) of each probe request element. Currently, the output from tcpdump for each probe request ...
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28 views

How to get Alfa awus036nha to work with Ubuntu 14.04?

I installed Ubuntu 14.04 in a dual boot configuration with OS X Yosemite. I then installed Wireshark on Ubuntu and I'm going to use an Alfa AWUS036NHA (Atheros chipset) adapter. The problem is that ...
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1answer
33 views

wireshark save capture directly to file with filter

I am looking to have a long-term packet capture running to monitor DNS requests on my machine. I generally use wireshark for network monitoring, but since I am only interested in DNS packets, and over ...
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2answers
48 views

How to run sniffing demonstration using virtualbox and wireshark

I am going to have a demonstration of packet sniffing using wireshark. Therefore, I decided to create two vitual machines in virtualbox (with "host-only adapter" network config) and monitor the ...
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40 views

TCP packet issue with 802.11ac but not with 802.11n on an Android Nexus 6

I have an Android Nexus 6 that connects to my computer via an ad-hoc network. When my phone connects to the 802.11n card (TP-LINK 300Mbps Wireless N), the bytes are sent with no issue; verified with ...
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1answer
92 views

Why filtering on udp port in TCPDUMP gives only fragmented IP frames

I've a device capturing traffic with Tcpdump filtering on "upd dst port" then it creates a pcap file to be read in wireshark. what I obtain from running: tcpdump udp dst port 5201 -qUns 0 -i wlan0 ...
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1answer
51 views

Wireshark loopback on mac os x [closed]

I have selected loopback (in capture options) to capture http traffic on my localhost server, but everytime I do and HTTP I only can see TCP.
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23 views

How to capture VirtualBox VM packets

I am currently running a series of three Ubuntu 14.04 VMs on my Windows 7 x64 host. The guests are all configured thusly: Host-Only Adapter Intel Pro/1000 MT Desktop Promiscuous Mode: Allow VMs Cable ...
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67 views

why am I not seeing traffic using TCPDUMP while sniffing on wireless interface with the station in WDS mode

I've 2 wireless interfaces one has the type of AP and the other has the type monitor. the AP is attached to a bridge br-lan. When I run for example: tcpdump port 5201 -s 0 -ni wlan0 TCPdump is ...
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32 views

Https request call capture in Wireshark

I have installed Wireshark and Windows based application(to be analyzed) which uses https request authentication to validate user.When I use interfaces -- > capture all the request of my system is ...
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1answer
75 views

Graphical representation of iperf3 results

I'm using Iperf3 on 2 machines and actually I'm running 2 instances of Iperf3, one to generate traffic with high priority and the other generates traffic with low priority. I would like to generate a ...
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46 views

Viewing Xbox One Network Traffic

I am trying to view the HTTP/HTTPS traffic going from my XBOX one so I can see what is being requested. I started off trying to use Charles proxy like this https://www.youtube.com/watch?v=MP4ZcwSHxbw. ...
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23 views

Long SMB session setup delay

I have a Windows machine connecting to an SMB share on a local Debian server. Everything works flawlessly, when it's connected, but the first connection (either after a boot / reboot, or after ...
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65 views

WireShark - Vmware Network Interfaces

I've recently installed wireshark v1.12.4 on my Windows 8 Machine, and I am totally new to the program. I have a virtual machine running on vmware (Red Hat Linux 7.2) and got all the network ...
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139 views

Wireshark fails to install on OS X 10.10.3 using brew

I've encountered the following issue while installing wireshark via brew. ➜ ~ brew reinstall wireshark --with-qt5 ==> Reinstalling wireshark with --with-qt5 ==> Downloading ...
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32 views

Decrypt SSL Data in wireshark

In all the tutorials which I saw in web, they pointed me to add key file in Edit->Prefereces->Protocols->SSL->SSL key file but there is no such SSL key file in version I use. Can somebody guide how ...
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33 views

Reading packets with Wireshark

How do I read packets captured with Wireshark. I was finally able to capture incoming and outgoing data in hopes of developing something along the lines of an IDS. Thanks in advance for the help. A ...
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2answers
81 views

Duplicate IP address Telnet and ARP

I have 3 hosts (PC1, PC2, and PC3). I set the IP addresses for PC2 and PC3 to be 10.0.0.2 and PC3 to be 10.0.0.1. I telnet from PC1 to 10.0.0.2. I then am logged in to PC3. I can see in Wireshark that ...
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25 views

tcptrace from wireshark capture

How can I use tcptrace to generate tcptrace graph from captures on wireshark ? I already know how to generate the tcptrace on wireshark itself, but I want to generate the graph outside wireshark ...
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1answer
24 views

How to find 802.11 protocol variant, and decipher packet_payload_info in PcapNG files?

I'm building a (Python) parser of PcapNG files created by Wireshark. After reading https://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html, I'm having the following problems: I'd like to ...
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1answer
22 views

Does connecting to one's computer via local router automatically uses the loopback?

I have a TCP application that doesn't show up on Wireshark. I read it was because Wireshark is not able to sniff Loopback communication on Windows. So, instead of connecting to 127.0.0.1, I connected ...
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19 views

Wireshark capture file: getting “missing packet” now, was not there 1 year ago

I captured data on a LAN. I then opened the pcap file with wireshark and could extract an email which was sent unencrypted on purpose. Means, I selected a package from the email and used "follow TCP ...
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1answer
46 views

Why does a radio stream not appear on a packet monitoring tool?

I am currently trying to find the URL to the audio stream for a webradio that only provides a flash player, that I would like to use with MusicBee's radio player. After using Wireshark to monitor my ...
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1answer
56 views

How is the FID generated for a SMB “Create AndX Request?”

I see in the traces while accessing a network share, there are multiple CreateAndX requests (which opens the folders) with an FID associated with them. However, some of them don’t and they get a ...
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24 views

VirtualBox Network confusion?

I'm trying to adjust my VirtualBox guest network in order for my guest O/S traffic look like its coming from my Host. Can I do this with NAT? Here's a simpler outlook on what I am trying to achieve ...
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2answers
165 views

Wireshark only captures packets to or from this device

I use wireshark on ubuntu 14.04 and I am trying to sniff wifi traffic of other devices in my network. I run wireshark or tshark on wlan0, start capturing packets and send some pings or open some pages ...
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1answer
39 views

Wireshark - Browser software

I just touched wireshark yesterday from my class. I was told to run wireshark while browsing www.kompas.com, and there is this question that is quite ambiguous. "What browser software shown in ...
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282 views

TCP Dup ACK/Retransmission, bad configuration?

I'm currently investigating network issues of a friends LAN (again). The Internet connectivity is very slow and unreliable and sometimes services simply don't work. I've monitored the traffic for ...
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3answers
347 views

How to find IP address of a DNS server

I'm a CS student and currently taking a (basic) course in information security. I was given an assignment which required me to analyse a given .pcap file using Wireshark and obtain information on the ...
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41 views

Wireshark capture SSL only

I would like to capture SSL or HTTPS traffic only in Wireshark, this is not something that can be filtered after due to the length of the time I would be recording the data after and the size of the ...
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259 views

Whatsapp traffic analyzed by WireShark

how to know info about the person I chat with in the Whatsapp by analyzing traffic got by WireShark Software where is he located at the moment of chatting. regards, Samad
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46 views

Do not fragment bit and windows 7

Recently had an issue where the DF bit was set to 1 going from a W7 workstation to the update server, the issue is it was sending 32K of data when the MTU was set to 1500. When the packet hits the NIC ...
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1answer
127 views

wireshark monitor mode, decrypting capture

I have a network, which has 2 nodes (a phone, a MacBook) both are connected to same wireless network, I know the SSID and password for the wireless network password: mypassword ssid: myssid security: ...
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143 views

init-p01md.apple.com/bag - iMessage?

I have a question about Apple network traffic. In my network program I can see these three domains (GET) http://init-01md.apple.com/bag http://init.ess.apple.com/WebObjects/VCInit.woa/wa/getBag?ix=1 ...
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1answer
25 views

Multiple TCP Connections to download simple webpage and images?

I created a very simple webpage: <html> <body> foo bar <img src="img1.png"/> <img src="img2.png"/> <img src="img3.png"/> Hello world </body> </html> And ...
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327 views

How to use Charles as proxy to decrypt HTTPS messages in Wireshark?

I know I can view decrypted HTTPS data directly in Charles. But I want to view lower level SSL messages in Wireshark. So I setup Charles as the SSL proxy, using my own certificate, and I setup SSL ...
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22 views

Frame logging of third party hardware on my router (specifically smart TV)

After reading recently about so-called smart TVs "listening" to sound in a person's home, and transmitting this recorded sound across the internet for speech-to-text translation, I have become curious ...
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33 views

Can I use a Windows 7 Computer as a Bridge and Sniff Traffic

Sorry if this has been asked before, but I've been searching for quite a while. My question is simple - can I use a Windows 7 computer as a bridge, and run WireShark to capture all of the packets at ...
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18 views

WLAN topology: does it work like a bus?

Does wifi work as a star network with a switch or does it work like a bus ? To be more precise, if I am in promiscuous mode, do I only see my traffic and broadcasted messages or do I get every packet ...
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52 views

HTTP Sniffing using wireshark

I am using Wireshark on my Mac, which is running Yosemite. When I am sniffing the HTTP protocol, I can only see the HTTP/get and I cannot see the HTTP/OK.. Is there a way to enable this on my MAC? I ...
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1answer
53 views

I see frequent PTR requests in my wireshark capture, are they normal?

Lately I've been getting very frequent DNS lookup failuers (I use Google's dns servers) so I set up wireshark to see some of the traffic and I see many PTR requests for IP's that don't seem relevant. ...
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1answer
407 views

wireshark usb traces explanations

I am trying to reverse engineer an usb (HID) device and cannot really figure out how what I see on wireshark (usbmon + wireshark on linux, or windows) relates to the usb protocol?. I have looked at ...