The packet tag has no wiki summary.
3
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1answer
59 views
Relation between a packet and a frame over the network
I am learning how networks work and I have a question. What is actually sent over the network? A packet/datagram or a frame?
I believe it is a packet. If so, let's say Computer A wants to communicate ...
-5
votes
1answer
38 views
Download manager downloads more than file size [closed]
That's really awful! specifically when my Internet charges are calculated per mb!
Well the issue occurred when I tried to download a 600mb file by Orbit download manager, It was 2.5 hours elapsed ...
0
votes
1answer
30 views
Intercept and Edit Packets over a Network Bridge
I've been looking around for a way to intercept a packet as it comes into my main pc, edit it, and then let it continue it's journey to the device bridges though my pc. I've tried writing a c# app to ...
0
votes
1answer
102 views
TCP\IP Packet Signature - how to identify such data packets?
I know of a program that can "carve" (look for) TCP IP Packets from raw binary data. The results it presents are the source and destination MAC addresses, the source and destination IP addresses and a ...
1
vote
1answer
87 views
Jumbo Packet vs Transmit Buffers
I want to increase the transfer speed between two network adapters:
1) Atheros AR8152 PCI-E Fast Network Adapter.
2) Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller.
Marvell has a "Jumbo ...
0
votes
3answers
83 views
HTTP Packet inspection scripting
I have a HTTP application running on a server. I cannot modify the application, but I would like to trigger an event when a specific POST request is sent to the application.
I would like to run a ...
2
votes
2answers
396 views
FFMPEG Errors: “max_analyze_duration” “buffer underflow” “packet too large” What to do?
I have an error while just copying a video with ffmpeg.
I use the command:
ffmpeg -i leon.mpg -vcodec copy -acodec copy leon2.mpg
The errors:
[mpeg @ 00000000020ebd20] max_analyze_duration 5000000 ...
0
votes
1answer
47 views
How to transfer packets from ethernet card to another ethernet card
I have a desktop with two ethernet(etho,eth1) cards and OSSIM installed in it. I have a laptop with webmin installed, where i want to write rules for transferring packets from eth1 to eth0. Both the ...
2
votes
2answers
447 views
Are Segments, Packets and Frames the same size if we ignore headers?
I've looked for some explanation about the differences between Segments, Packets and Frames, and from what I read:
Segment is the original data + Transport Layer header.
Packet is a Segment + ...
1
vote
1answer
73 views
Track down internet PCs communication using network media devices? [closed]
We have a little argue here about is there a way for internet providers to trace your traffic using the network media devices they are using.
Some of the folks say that if you are using an other ...
0
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0answers
156 views
Weird connection attempt. Need TCP packet analyzer / Firewall to analyze it without allowing
When I switched on my computer today, my firewall alerted me that svchost.exe is trying to connect to 87.245.215.72 on the HTTP port 80. This didn't happen before, I have all the updates and stuff ...
0
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0answers
142 views
Packet Filter / OpenBSD
I'm new to OpenBSD's PacketFilter, have some questions regarding the rules that can be set to force stateful inspection.
I've read in several places that I have to specify the http port for an ...
1
vote
0answers
731 views
Drivers for packet injection on the Intel Centrino(R) Advanced N 6205
I have an Intel Centrino(R) Advanced N 6205, running BackTrack 5 in VMWare. I'm having trouble following the tutorial on aircrack-ng website, and I need to know what drivers to download to support ...
0
votes
1answer
119 views
Check how many packets are being received by each interface/computer on the network
Is there a way I can check via terminal or command line how many packets are being received by each interface/computer on the network?
I want to check which PC is downloading a large amount of data.
...
1
vote
1answer
210 views
How do I know if my packet requests are being redirected from localhost?
So I just had a fun and exciting time trying to figure why on earth a particular computer was able to ping different places on the interweb but not browse any webpages of the same places I was able to ...
0
votes
1answer
613 views
How do I send TCP packets with packETH?
I want to send packets to 127.0.0.1:11311 with packETH. However, there are some problems I cannot solve.
Here's some screenshots: (click to zoom in)
In IPv4 data ("Header length")
Header ...
0
votes
3answers
478 views
Packet sent to the default gateway addressed to the same subnet. What happens?
Just a theoretical question (out of curiosity). If a host sent a packet to its default gateway and the packet has a destination address within the IP range of the subnet, what should the gateway do in ...
1
vote
1answer
93 views
Odd internet packet routing
I want to know is there anyway to explicitly control the packet routing. I try to connect my computer in HK from San Francisco. It is extremely slow and I use tracert to see what is going on. It seems ...
4
votes
5answers
3k views
How do IP answer packets reach their destination inside of a private LAN?
This is a little theory question that has been confusing me for a pretty long time.
Basically, if we are inside of a private LAN, and we want incoming packets to reach, for example, an HTTP server ...
0
votes
2answers
2k views
Minimum size of the data part of TCP segment
My question has two parts:
I know that the "data" part of an Ethernet frame can be 46~1500 bytes. Considering the IP header of 20 bytes + TCP header of 20 bytes, the minimum "data" size of a TCP ...
0
votes
1answer
125 views
What is fjappmgrbulk?
I captured a udp packet from wireshark which ones port is 2510 and destination ip is 81.64.155.202. What is that port for? I found this post) mentioning:
"it's for fjappmgrbulk, fjappmgrbulk ...
2
votes
3answers
487 views
Will VPN will slow down VOIP traffic?
If I have a Linux setup with VPN in Paris and a Linux setup with VPN in London, both with high-speed internet, will packet-switching be slower for VOIP than if I didn't use VPN?
A few people have ...
2
votes
3answers
155 views
Send cookies/site login information over my internal network?
Is there a way I can send cookies/site login information to computers within my internal network? i.e push them through in packet headers? Not FTP.
For example if I want to send cookies with my ...
0
votes
1answer
25 views
reduce the time taken by application packet to reduce ethernet interface on windows?
How do I possibly reduce the time taken by an application packet e.g.like http from a browser to ethernet of same computer on windows 7? I will be programming in visual studio in c++ in few days. I ...
7
votes
2answers
457 views
On an unencrypted public wi-fi hotspot, what exactly is a packet sniffer doing to get another computer's packet?
I get mixed results when reading information security articles, some of them stating that in order to do something similar you need to also setup some sort of honeypot with a running access point and ...
0
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8answers
2k views
What's the difference between a TCP segment and a TCP packet?
Is a TCP segment not part of a TCP packet?
Here's what I've read:
A segment is a piece of application data chopped into a transportable size by TCP and wrapped with a TCP header
Isn't the TCP ...
4
votes
1answer
1k views
Can you sniff packets of an open wifi network that you are not connected to?
I mean, just see all the packets going though the air.. is this possible with Wireshark, for example?
0
votes
1answer
662 views
How do I calculate how long a packet will reach its destination?
I am stuck with this homework question. I honestly have no clue what it is talking about.
The question asked: You are transmitting 100 bit packets over a long distance link of 40 km. I assume ...
4
votes
2answers
2k views
What does the MySQL “max_allowed_packet” setting actually control?
We've been cleaning up database problems for the last four hours, thanks to a broken mysqldump that wasn't sufficiently erroring out. We were getting these errors:
mysqldump: Error 2020: Got packet ...
0
votes
1answer
186 views
Troubleshooting timeout and login problem, data transfer logging
I can't use gmail or Google log-in enabled openAuth from my browser in Ubuntu, but the same computer (It is a dual boot) works fine for everything in Windows. I connect through a Dynex router, and a ...
0
votes
1answer
919 views
How to open outbound ports in Router?
I am trying to configure this Yamaha router in our lab to open ports to access GMAIL (smtp/imap).I understood that I have to open ports 995 and 465 for this.
Should I do this in "Packet Filtering" or ...
0
votes
1answer
812 views
tcpdump missing on Cygwin v1.7.7 for packet sniffing
I am trying to debug why my TCP packets are truncated. I see that only the first 24 bytes of each packet are showing up in my program. The 25th through 28th bytes are scrambled and all others after ...
2
votes
2answers
1k views
How do I trace HTTP packets with Wireshark?
What can I do in order to see packets that come from different sessions in a web page?
For example when I open yahoo.com there are different sessions in yahoo; I dont know how to see which packet is ...
0
votes
2answers
915 views
5
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4answers
7k views
What's the minimum size of a TCP packet
A post here:
http://blogs.adobe.com/dreamweaver/2011/02/optimal-css-tiled-background-image-size.html
staes that "The smallest download that browsers can do is 1K bytes."
Is this due to minimum size ...
0
votes
1answer
115 views
Remove adapter defined routing entry
I need to remove (or change) the default entry in the routing table for Windows XP, which routes packets with a destination equal to the adapter's address to localhost.
The reason for this is I ...
1
vote
1answer
299 views
Capture network traffic from Playstation
I want to capture network traffic from my playstation. It is connected to my wireless network. For some reason Ethereal (now WireShark) isn't letting my use my wireless card to see traffic.
Is it a ...
0
votes
1answer
430 views
Network packet editor for Linux?
Anyone know network packet editor for Linux, or a way to modify network packets in wireshark?
6
votes
2answers
511 views
Packet sniffing tools
OS: Windows XP
Is there any tool that can do packet sniffing by processes? I use Wireshark before, but that's too wide. I need just to look into a certain process.
3
votes
3answers
142 views
Packet travelling in layers
I want to know how a network packet travels through different layers, i.e. from the physical layer to the presentation layer in Linux systems.
Are there any detailed articles or books on this topic ...
1
vote
1answer
100 views
Unexplained Log Cruft and Possible Dropped Packets on WPA2-Personal LAN
I've been receiving a LOT of log cruft ever since I installed my WUSB100V2 (using the rt2870sta community driver from the Linux kernel) and was wondering what it all meant.
Many times when these ...
2
votes
2answers
140 views
Continuous packets receive from Internet even when closing browsers,why is that?
I use windows XP sp3 on an HP laptop compaq nc6400 connecting to the net through adsl connection in a local network, as soon as I connect to the internet it starts to receive packets, is a virus doing ...
4
votes
3answers
6k views
Packet Sniff over Wi-Fi
I've got a non-PC wireless client, and I'm wondering about some of its connections. I want to see the actual packets being exchanged from the net to my device over a Wi-Fi connection.
I have ...
0
votes
1answer
1k views
Can I have Tshark not truncate my urls
I've been using tshark recently and I've noticed that on certain urls it truncates the URL:
Request URI [truncated]: ...
0
votes
5answers
1k views
Intercept email and see its content
My new company has a monitor position. What a monitor does, is to monitor what anyone is doing. No IM, USB, phone with camera are allowed. I wonder within a WLAN, if a monitor can intercept my email, ...
3
votes
1answer
9k views
Capturing wireless traffic (using Wireshark)
When I run wireshark on a wired network it works fine and reports all of the packets.
When I run it on a wireless network though I only see my own traffic. The wireless card I have is supposed to ...
1
vote
1answer
116 views
Win7 Modifying incoming HTTP packet from specific url automatically
Is there an application that can listen in on my PCs http traffic (Preferably process specific), and modify packets that were requested from a certain url ?
So let's say everytime I request ...
3
votes
2answers
770 views
What are ping packets made of?
What exactly are in the packets that are sent via the ping command?
I was reading a Wikipedia article about magic numbers and saw this:
DHCP packets use a "magic cookie" value of '63 82 53 63' ...
0
votes
1answer
405 views
What is a good firewall for windows that can block packets based on tcp flags?
I need to find a good firewall for windows that i can use to block packets based on their tcp flags. In this case for example, i need to block incoming FIN packets.
Does anyone have a firewall to ...
1
vote
2answers
88 views
What programs can I use to see what traffic of mine a network admin can see?
What programs can I use to see what traffic of mine a network admin can see?
Monitor incoming and outgoing network traffic at a the packet level, I want to make sure my VPN is working properly.
