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Questions tagged [packet]

A packet is one unit of binary data capable of being routed through a computer network.

This is a small amount of computer data sent over a network. Any time you receive data from the Internet, it comes to your computer in the form of many little packets.

Each packet contains:

  • A label which uniquely identifies it
  • The IP address of its origin and destination
  • A sequence number (for sorting)
  • A checksum (for error checking

The process of sending and receiving packets is known as "packet-switching." Packets from many different locations can be sent on the same lines and be sorted and directed to different routes by various computers along the way, the packets are then sorted by their sequence number once they reach their destination. It works a lot like the post office, except billions of packets are transferred each day, and most packets take less than a few seconds to reach their destination. Even FedEx same-day delivery can't compete with that.

Packet Definition. 2013. Packet Definition. [ONLINE] Available at: http://www.techterms.com/definition/packet. [Accessed 30 April 2013].

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Variable binding in SNMP PDU

I am developing a SNMP utility in C# which can fetch data from a specified device OID using the SNMP version 1 packet format. I have almost completed it but their is a problem that I am not able to resolve. I am successfully querying one variable by…
user1333218
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How to calculate packet loss in android?

How can we calculate all network or calculate specific Network packet loss in android?
Ahmed Abdullah Saeed
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Linux module for modify packets(Netfilter)

Can anybody tell me how can i modify packet data by linux module using Netfilter hooks? Thanks!
user1262425
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Router Simulation

For one of my courses I am writing a Java Applet that simulates network activity. I have a host machine which keeps an ARP table of MAC to IP address, and then I have the switch keeps track of what MAC is attached to what physical port. (interface)…
Matthew
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android UDP connection, not receiving any data

Im a newbie in this so please escuse me if i ask dumb questions. Im trying to make a UDP connection between Eclipse's PC Emulator & a android phone (or between two android phone devices). I have a router and the phone connects to the internet thru…
redbase
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Ping from Dynamic Language without using 'ping'

I'm on a Linux system where I am not allowed to use the 'ping' application (ping: icmp open socket: Operation not permitted). However, the script that I am writing (PHP, but I can use an exec() call to any script/program if needed) needs to…
Jason
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replace packets of a connection

How to replace a string in packets of a connection? I use Delphi.
Leo
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What does BGP Path Attribute Type 18 refer to?

Does anyone know what Path Attribute Type 18 refers to and how to parse it? The best I can understand is that it is a new AGGREGATOR (type 7) and I'm assuming that it's reading the new AS32 format, but that's not cutting it because I can't parse…
Noah Campbell
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usb-serial modem packet limit to 500 bytes

I am using sierra wireless modem MC8790V with TI's kernel 2.6.37, and noticed that ping from one unit to another is possible only if ping data length is limited to 479 (ping -w 479), any larger length fails. Not only that it fails, but later there…
ransh
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How to send a packet via proxy?

How would I go about doing this in python? I need to establish a stronger connection than I may have to the server.
Michael
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saving packets in the pcap file with python packages

i have a list of packets that read from pyshark package in python packets = [] # list of packets that read with pyshark how I can save them in the pcap file ? i don't know how i can convert them to the bynary ?
amir.h
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saving packets in pcap file with wireshark

i have a list of packets i want to save packets in pcap file with pyshark I can't convert packets to bynary of that packets = [] # List to store filtered packets # Loop through packets and filter based on the capture filter for…
amir.h
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Is it possible to make proxy server with other jsch servers

I have to make proxy server between jsch servers. Proxy server was made of netty. when jsch session was connected, sshd server didn't understand some packet. I found out some solution with ProxySOCKS5. but is it necessary to set proxySocks5 when i…
seunggyu lee
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How many bytes of content does the client expect to receive from the server?

How many bytes of content does the client expect to receive from the server? I am confused. What should I do?
Sujan Gautam
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Ethernet packets data

image here I would like to know what does these parts below mean. What is 0010 What does the 08 00 27 d5... mean What does the data on the right mean
dridrikos
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