0
votes
0answers
24 views

Drop network packages

I'm seeing a lot more protocols in the wireshark capture in my university network than in my home network and the connection is incredibly bad at the university (> 2 Min. to get an IP address from ...
0
votes
0answers
29 views

cannot listen to interfaces without root privilege

for certain reason, I wanted to capture traffic without being root. Setup: Host: Ubuntu 3.11.0 Guest Ubuntu 3.13.0 Wireshark in Guest:1.10.8 I have done this trying to enable capturing without ...
0
votes
1answer
75 views

Websocket handshake response not forwarded from TCP to client

I am trying to create a websocket server. I can see the websocket client's opening handhshake. My response to it is received by the client laptop (I can see this on wireshark). So the TCP connection ...
-2
votes
3answers
69 views

Is there a free program that can detect which device on my network is causing lag? [closed]

I'm on a small business network, and rarely we experience really extreme latency. I have no idea what device might be causing the lag, and wanted to know if there was a piece of software that could ...
1
vote
2answers
226 views

Using Wireshark to track traffic on a Windows Virtual WiFi Miniport

I have a Microsoft Virtual WiFi Miniport set up on my laptop with an Android phone connected to it. The laptop is then connected to the outside world through a wired connection. I would like to ...
0
votes
0answers
37 views

Unable to intercept data intended for gateway by using ARP

I am having trouble with what seems to be a very simple problem. I manage to be able to successfully spoof the ARP table of one computer on my network (as reported by arp -a). But even enabling a ...
0
votes
0answers
58 views

RST, ACK from 216.98.48.133 without any SYN from me? For real? How? Why?

I am trying to figure out why I always get "The Ubisoft server is not available at the time. Please try again later." Apparently, the server is actually up and running, so it seems the problem is on ...
1
vote
2answers
116 views

Simple http traffic monitor (capture by process) [closed]

I know, questions like this have been asked a lot before. I have a big problem using Wireshark because of the following reasons: It is not able to trace down which process sent/received a packet ...
0
votes
0answers
104 views

Wireshark Capture Filter

I am new to wireshark and I am trying to capture an ICMP packet over 802.11g, I am using windows and pingplotter. The issue is that on wireshark capture I am not getting any ICMP packets no matter how ...
0
votes
1answer
50 views

How does a packet of RDP mouse/keyboard click look?

I just cant find it on wireshark when sniffing the RDP connection.. Can anyone show me how they look and how can I distinguish between them? Of course it would be encrypted but the main question is ...
0
votes
1answer
99 views

How I can start to capture packets and saving it by command line using Wireshark

Could you tell me how I can start to capture packets with specific interface by command line and saving it by command line using Wireshark? I would like to save it on my Desktop. OS X 10.9.2 ...
0
votes
2answers
106 views

Wireshark, Find Protocol Layers

I'm using Wireshark to analyze network traffic. I'm a bit confused by what's displayed under the "Protocol" column. If I'm not mistaken, DNS and HTTP are Application layer protocols while TCP is ...
0
votes
1answer
108 views

Mismatch between libpcap configured snap length and actual capture length

I have a couple of pcap files where the capture length reported by Wireshark is larger than the actual capture length. The difference is 10 bytes, and I don't understand why it reports this higher ...
1
vote
3answers
1k views

SSL (imap) doesn't work from some machines - ssl handshake failure - how to narrow down further?

A few days ago our IMAP SSL (port 993) connections stopped working from our home network two Windows 7 PCs in our home network. Two other PCs, one with Windows XP, one also with Win7 professional ...
1
vote
0answers
20 views

Utility service that logs total network usage

I would like to know the total bandwidth our internet provider essentially provides to the many competing devices in our home. Is there a simple windows service that uses a wireshark like trick to log ...
2
votes
1answer
50 views

Simple way of demonstrating that a VPN is working, that is easy for novices to understand/comprehend?

I am developing a Linux-based security appliance. One of its functions is to cloak a user's traffic within a VPN, and I need a simple way of demonstrating that this function is working properly, and ...
2
votes
1answer
78 views

how to see all network requests made by an application [duplicate]

Suppose i have an application running abc.exe, how to see all the network requests made by this application? Wireshark is good to see all the requests from the pc, but is there any filter for requests ...
0
votes
0answers
103 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 ...
4
votes
1answer
4k 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 ...
3
votes
1answer
347 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 ...
0
votes
1answer
44 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 ...
0
votes
1answer
107 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 ...
1
vote
2answers
126 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?
0
votes
0answers
131 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 ...
1
vote
1answer
280 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 ...
1
vote
1answer
152 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 ...
0
votes
1answer
363 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.
0
votes
1answer
70 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 ...
1
vote
0answers
216 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 ...
2
votes
1answer
2k 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.
0
votes
1answer
841 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 ...
0
votes
1answer
364 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 ...
1
vote
1answer
4k 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' ...
2
votes
1answer
93 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 ...
2
votes
1answer
2k 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 / ...
0
votes
2answers
798 views

Capture TCP communication on a specific port using wireshark

Hi i have build a simple TCP server which listens on port 9999 and has an IP address 202.168.66.1 i have a TCP client which has the same ip address and connects to the server on the said port. Now ...
1
vote
1answer
145 views

Browser communication to a webserver and the OSI model

If I use google chrome (on a windows 7 machine) to access https://www.google.com, can someone tell me where the involved pieces fit into the OSI model? I would also like to know If I use ...
0
votes
1answer
295 views

How can I capture packets belonging to a certain process

I need to capture packets belonging to a program or process. I know Winshark, but it just displays network traffic in a mess (in my view). If one wants to get the packets of a given process, you must ...
0
votes
1answer
316 views

dig OK but dig @192.168.1.1 NOT

why dig works OK, but dig my NetGear router directly doesn't (while first goes to it too, because it is my DNS, NetGear itself has 8.8.8.8 set as prim dns). My NetGear has IP 192.168.1.1 on LAN. Here ...
0
votes
1answer
531 views

Scapy: TCP Retransmission error

I've been using Scapy to send SCCP or Skinny packets to my Cisco Desk Phone. However I keep getting these TCP Retransmission errors, and I believe this is causing the Cisco Phone to not respond. I ...
0
votes
1answer
754 views

Why Wireshark is not showing high layer packets like ICMP/IP/UDP? (Only broadcast packets are shown)

I am using Wireshark for 802.11g sniffing. The AP is not using any encryption. These are my observations: The vast majority packets are beacons and the probe requests. If I filter out beacons using ...
1
vote
0answers
27 views

How to identify which network interface is my application using [duplicate]

I hoped to capture network traffic -using Wireshark- via a port on which my application is running. However when I fired up Wireshark, it listed 4 network interfaces not just 1 as I expected. So I ...
0
votes
1answer
285 views

wireshark makes network working

Have a number of boards with ethernet on it. Some boards have hardware bug. When pinging such boards, not always got answers. But when running wireshark capture mode, have stable network exchange ...
3
votes
0answers
343 views

Capturing Internet Connection Sharing (ICS) traffic using Fiddler

Does anyone have any idea how to capture HTTP traffic that goes through my ICS connection? Full details: I have a PC connected to internet via Ethernet. PC has set up a Wifi Hotspot using Internet ...
1
vote
1answer
555 views

Record multicast stream on multi-homed Linux host

I have what sounds like the simplest possible use case, and yet nothing is satisfactory. I have a multi-homed host and I would like to listen to multicasts on eth1, and shove all the payload (NOT ...
1
vote
3answers
2k views

Why does Wireshark show MAC addresses in the source\destination?

Every device on the my LAN should have IP's along with MAC addresses, and for most of the traffic Wireshark gets on me device, the source and destination columns shows IP addresses, but sometimes it ...
1
vote
1answer
223 views

Lightweight network packet capture solution for windows? [closed]

I'm looking for a lightweight packet capture solution for Windows. It needs to capture all packets on a physical network device and write them to a file (preferably .pcap, because that's easiest for ...
0
votes
2answers
83 views

How to check the packets in wireshark while doing the internet

I am using Wireshark first time.Can we see the packet in wireshark while having the internet on the laptop(or PC). But I don't see any packet in wireshark.While I have internet connection. Please ...
0
votes
1answer
413 views

How do I capture 802.11 headers on an AP while not in monitor mode?

I am wondering if it is possible to extract 802.11 frames on a router running OpenWrt operating as an access point. I tried using tcpdump and loading the dumped packets in Wireshark, but I could only ...
3
votes
2answers
6k views

How can i show only 127.0.0.1 traffic using Wireshark?

Every time I try to filter to just show a specific IP Address, I get an error indicating that it is "not an interface or a field." I have no idea what that means. Furthermore, I don’t really see ...