Open-source network packet analyzer

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1answer
881 views

wireshark cannot capture VM traffic

Here is my setup: A windows 7 laptop running as a host running VirtualBox Inside Virtualbox, I have a debian VM. The eth0 of the VM is created as a bridged device from the physical ethernet port on ...
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0answers
174 views

Passing through TOS/DSCP through two layers of OpenVPN, possible?

About a week ago I posted about a problem I am having getting usable VoIP connections working on a machine configured using mirimir's dual-VPN isolation system. (For details on the setup see my ...
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1answer
113 views

Capturing more WLAN frames than sending/receiving Ethernet frames

I'm trying to determine whether a computer capturing WLAN frames on an 802.11n network does this correctly. I do this by letting one computer (1) generate traffic by downloading some files, and ...
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1answer
758 views

How do I find my e-mail password hash in Wireshark?

I use wireshark and I wanted (within education) get the password to my email. I found the line [truncated] Cookie: ... There is my login, but I do not know where the "hash" responsible for my ...
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2answers
12k views

How to block the Whatsapp Android application in a network

I need to block the users from accessing Whatsapp Android application who have logged in to my network. I tried to take Wireshark logs and tried to find the server's IP Address and port number, but I ...
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1answer
72 views

ICMP Fails after first packet

I'm trying to ping any ip, other than my LAN IP & localhost, it fails except the first packet!! Snapshot from CMD with the pings But Wireshark capture shows that the ICMP is success!! ...
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1answer
175 views

Wireshark TLS communication shows green HTTP packets when using CCProxy proxy server?

Client <--> CCProxy <--> Server I have IE configured to use a proxy server for HTTP and Secure connections. I also have a proxy server is set up with CCProxy. It is my understanding that ...
3
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1answer
675 views

SYN-ACK not received

On a standard TCP connection between server and client, I have this issue: the SYN-ACK is not received from the client, while it is sent from the server. I could see this on Wireshark from both server ...
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1answer
196 views

Wireshark : Why is a TTL value of the DNS response not 128?

Im just looking for help with a question on Wireshark. If the TTL value of a DNS query is always 128 why is the response TTL not 128? Will the DNS Query TTL always be 128 by default and the response ...
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1answer
64 views

How to know at what point a request fails on Windows 8

I'm testing a small script on Windows 8, which tries to fetch a simple web page on port 80. However the network connection fails everytime with error 10053. I thought initially of a firewall problem ...
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1answer
202 views

How do I configure Wireshark to see only the problems?

I know a bit about networks but I have so far failed to define a filter which removes all "good" traffic from the display (i.e. all packets that were replied, all data transfers which were completed ...
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2answers
196 views

How to view other lan users packets via wireshark

It seems that I can only view my own packets, how to view other lan users packets via wireshark?
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1answer
269 views

Wireshark on OS X: I can configure my Airport channel, but how about bandwidth?

This is what I currently do to capture 802.11 packets with Wireshark on my Macbook Pro From my AP, I set the channel to 40 and channel bandwidth to 20MHz. From Terminal, I set the Airport channel ...
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2answers
641 views

What's the difference between wlan.sa, wlan.ra, wlan.ta and wlan.da?

Tshark/wireshark (CLI) has several fields to display for WLAN, including these four (+ description from manual): wlan.sa: Source address wlan.ra: Receiver address wlan.ta: Transmitter address ...
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1answer
727 views

Which Wireshark settings to see connections from phone

I am trying to find out which URLs my phone is accessing when on a local WIFI network. My trials so far have been running an Ad-hoc network on my Laptop and sharing Internet through it (this works). ...
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1answer
242 views

What is the RSA SecurID packet format?

I am testing a client application that authenticates using RSA SecurID hardware tokens. The authentication is failing and I am not finding any useful information in the log files. I am using ...
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0answers
14 views

Monitoring traffice from an internet enabled printer [duplicate]

I have a WiFi internet enabled printer that can grab content from the web. I want to use something like Fiddler or Wireshark to view the traffic it's sending and receiving. Is possible? How would I go ...
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3answers
14k views

X11/XQuartz won't auto-launch after upgrading to OS X Mavericks?

I can't use Wireshark on latest OS X 10.9 Mavericks. Previously, I was using XQuartz to run X11 applications like Wireshark. But, yesterday, after I upgraded my iMac operating system to OS X 10.9, ...
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1answer
416 views

Firewall and Blocking [More] Traffic

I have a MacBook Pro with the firewall on. I'm trying to run a Wireshark trace and the noise bleeding through Apple's firewall is very distracting. According to the image below, most of this noise is ...
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216 views

Wireshark on CentOS does not start

I'm using CentOS 6.4 64bit. When I run wireshark i get the following error: No protocol specified (wireshark:3620): Gtk-WARNING **: cannot open display: :0.0 It has come to my attention ...
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1answer
357 views

Why doesn't Wireshark capture management frames in promiscuous mode?

I am working with Wireshark in promiscuous mode, which is normally used to allow Wireshark to capture all the frames in the connected network. The problem is that Wireshark in this mode doesn't ...
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1answer
3k views

Sniffing the Router for Packets

I have used WireShark software to sniff my Network Interface. What if i wanted to sniff the router that what other computers on the network are doing? Is there any way to do that? Computers are ...
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2answers
358 views

Filter packets sent via HTTP to a port other then 80?

I have a database communicating on port 7474 via HTTP (sigh), and I want to debug the queries sent to / from it. However, a filter such as http.request.method == "POST" Filters out every post ...
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1answer
1k views

Unable to capture wifi traffic with wireshark

Even a few days ago everything was fine, but now simply I can't capture and see tcp, http, etc. wifi traffic but only the traffic for the protocols 802.11 and LLC. I used different wifi spots ...
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2answers
308 views

Why am I getting arp requests from local machine?

I'm connecting wireless network (provided by apartment, so possibly quite a lot of machines connect to it) and I noticed that ARP requests from local machines send to my machine instead broadcast ...
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1answer
479 views

Wireshark traffice capture- one subnet to another subnet

My setup is a computer with wireshark connected to switch on LAN network. The subnet IP that the wireshark is on is .0.# . I would like to capture traffic between subnet IP of .0.# and .2.#. However ...
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1answer
587 views

Error in installing compiled wireshark 1.10.2 on Kali 1.0

I've downloaded source code of Wireshark 1.10.2 from it offical website and compile it by following commands: ./configure make make install It was compiled and installed successfully, but when I've ...
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1answer
169 views

How can I find the modulation schemes used for the packet transmission using wireshark?

I am using wireshark to find the modulation schemes and the type of packets captured for 802.11ac. How can I find the modulation schemes used for the packet transmission? Preferably using wireshark? ...
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1answer
172 views

Find out what programs are heavily using the network

Currently, I have a process on my Windows 7 system which is saturating the incoming broadband internet connection (75Mbit/s) and almost completely saturating the 100Mbit network controller. I cannot ...
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1answer
639 views

See file size on wireshark when downloading

Is there a way to see the filesize of a file when starting a download through wireshark? I want to see the size of http downloads on wireshark when i start them but i cant find that information.
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1answer
75 views

SSTP VPN not encrypt packets?

I had installed SSTP VPN server (windows server 2012) and then tryied to check whether my traffic is encrypted or not. I had used wireshark and got strange result: packets to all servers, but my ...
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0answers
461 views

How to troubleshoot a VPN connection drop

I have a Windows 8 machine that won't connect to a work VPN (other machines configured the same* way work fine). The IT dept at work says the attempt never shows up in the logs. On my computer, it ...
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1answer
1k views

How to select all the “TCP segment of a reassembled PDU” frame in Wireshark?

Is there a filter in Wireshark to select all the "TCP segment of a reassembled PDU" packet?
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2answers
94 views

Is it possible to find which ip is going to a website? [closed]

We have someone that keeps trying to connect to our email host and after a few attempts of trying to log in (incorrectly) we are then blocked. We then have to call and unblock. Less then having ...
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1answer
161 views

WireShark: Only buffer the last 10 000 packets

I am using WireShark to keep an eye on the traffic on two 10G ports, in real time. The problem is that there is so much traffic coming through the two ports that WireShark crashes within a minute. Is ...
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2answers
422 views

Capture raw internet traffic

I am sure that this has been asked before, but I can't find exactly what I am looking for. I am looking for a free *standalone* program that allows one to record all traffic between a computer (my ...
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1answer
1k views

Wireshark doesn't capture 802.11 data packets

Lately I have been trying to analyze wifi traffic over my own test router. I looked on the wireshark website on how to do this and setup my own testing network. my network: dd-wrt router with WPA2 ...
2
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1answer
4k views

Wireshark - How do i filter the TCP[RST] packet?

I am looking for filter out the TCP[RST] packets on wireshark. I have tried tcp.analysis.flag but it didn't help.
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1answer
238 views

Decrypting WPA with wireshark

Hi I want to decrypt my WPA packets which i gathered by sniffing with airodump-ng. The problem is that even after I have the 4-way handshake packets (they are correct) i don't know how to extract the ...
2
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1answer
647 views

Change TCP sequence numbers for packet replay?

First off, I'm using wireshark for capture and colasoft for replay. I'm attempting to replay a group of captured packets back, looped to be done several times over (the purpose of this is just to send ...
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1answer
1k views

Wireshark does not capture Packets dropped by Firewall

I'd try to find out if a device in my office tries to send packets under different circumstances. In one case I could see hundreds of packets sent by the specified client. In the other case (the ...
4
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2answers
879 views

usbmon (wireshark, tshark) for regular user

I have libpcap set up with the newest cvs version. Regular users can run Wireshark and tshark. Specifically, they have been added to the wireshark group and can capture from 1. eth0 2. br0 3. nflog ...
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1answer
552 views

Can't capture any telnet packets

I'm running a Telnet server and client on my Windows 7 computer. Meanwhile, I'm running Wireshark to try to sniff the telnet login. I have been unable to get Telnet to send any packets that can be ...
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1answer
1k views

Only shown problematic packets in WireShark

I am using WireShark to analyse millions of packets. Is there a filter which will only show those packets which have errors? By "error", I mean an IP error (e.g. incorrect IP header checksum), an TCP ...
0
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1answer
980 views

FTP server via SOCKS5 Proxy can only be LISTed with firefox, no ftp clients

I try to retrieve a folder from a FTP server which I connect to through a SOCKS5 proxy (ssh -D). When configuring Firefox (v20, v22) to use the SOCKS5 proxy I can without problems explore the ftp ...
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2answers
546 views

Why cocoa packet analyzer shows “capture packets to a trace file” menu?

I am trying to use 'cocoa packet analyzer'('C.P.A'). I uses mac OSX and I installed this from appstore. After installed this, when I launch this program a popup comes out. Others say that to get ...
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1answer
6k views

Wireshark on WPA2-PSK [AES] not decrypting

I am trying to capture all packets on my network from all devices connected to an SSID . I started up airmon-ng Started Monitoring on mon0 Changed Preferences in wireshark to 'enable decrytion' ...
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1answer
241 views

Why is ARP in Mac going crazy? How to disable it?

This is the first time I am observing the ARP request from my Mac is going crazy. It keeps sending the ARP request for last an hour. The requests are like following (using wireshark) 484975 ...
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1answer
109 views

LAN assembly 2 packets into 1 packets?

I have two computers A and B, there is a TCP connection between them. I use TCPdump to capture the packets. I notice that when A sends a lot of TCP packets to B, each IP packets are 1514 bytes. In ...
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1answer
3k views

How can I monitor traffic on my home network?

I have admin access to my D-Link DSL G604T router which controls one switch (and 2 computers) and three other computers. I want to monitor traffic on this router to find out who is downloading what / ...