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Topic: Packet

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DS0

	Packet switching
		Packet switching main difference from Circuit Switching is that that the communication lines are not dedicated to passing messages from the source to the destination.
		The job of each packet filter is simply to pass the cell to the concentrator if the cell is destined for that output, and to mark the cell as inactive otherwise.
		The routes that the packets pass are not chosen according to an algorithm which finds the shortest path between the source and the destination, but each node chooses randomly to which one of its connected nodes to pass the packet.
	www2.rad.com /networks/2004/PacketSwitching/main.htm (3713 words)

	PACKET(7) Linux Manual Page (Site not responding. Last check: 2007-10-20)
		All incoming packets of that protocol type will be passed to the packet socket before they are passed to the protocols implemented in the kernel.
		By default all packets of the specified protocol type are passed to a packet socket.
		Packet sockets are not subject to the input or output firewall chains.
	jamesthornton.com /linux/man/packet.7.html (1077 words)

	LGR - packet communication technology
		In packet switching there is no dedication of resources and conflict resolution occurs during the actual flow perhaps resulting in somewhat uneven delays being encountered by the traffic.
		Packet switching of a kind, the telegram, persisted throughout this period but due to the high cost of switching and the limited demand for fast message traffic never attracted much attention.
		Packet communication technology is only beginning to be explored but already it is clear that the design of all forms of communications channels and systems should be rethought.
	www.packet.cc /files/ext-pac-com.html (2280 words)

	Packet - Wikipedia, the free encyclopedia
		A packet consists of three elements: the first element is a header, which marks the beginning of the packet; the second element is the payload, which contains the information to be carried in the packet; the third element is a trailer, which marks the end of the packet.
		IP packets are composed of several components [1].
		The header of a packet specifies the data type, packet number, total number of packets, and the sender's and receiver's IP addresses.
	en.wikipedia.org /wiki/Packet (1399 words)

	Howstuffworks "What is a packet?"
		Each packet is then sent off to its destination by the best available route -- a route that might be taken by all the other packets in the message or by none of the other packets in the message.
		The header of each packet is 96 bits long and the trailer is 32 bits long, leaving 896 bits for the payload.
		Each packet's header will contain the proper protocols, the originating address (the IP address of your computer), the destination address (the IP address of the computer where you are sending the e-mail) and the packet number (1, 2, 3 or 4 since there are 4 packets).
	computer.howstuffworks.com /question525.htm (728 words)

	Packet Radio Primer
		A packet radio station consists of a 2 meter radio, a terminal node controller (TNC), basically a modem for your radio, a computer running some type of communications software be it written for packet or as simple as a old telephone modem program like Telex, and connecting cables.
		We use packet locally during the Bloomsday Run to connect our aid stations with a database to keep track of injured runners.
		The packet stations would need to know what the callsign and/or alias was on each location between there home location and where they wanted to connect.
	www.vhfclub.org /packet_radio_primer.htm (1522 words)

	Packet Writing
		Packet writing is a term for software that lets you record data onto a CD-R or CD-RW disk directly from Windows Explorer, My Computer, or from the File/Save As section of any computer program.
		Packet writing makes it simpler to create disks, since don't have to learn how to use other CD recording software programs.
		Packet writing allows you to build a disk little by little, piece by piece, easily.
	pages.prodigy.net /jdjd/cdr/packet.htm (1817 words)

	[No title]
		If an IP packet comes up into IP, the unit of data is passed upwards to either TCP or UDP, as determined by the value of the protocol field in the IP header.
		Instead the IP packet is discarded and the recovery from the IP packet loss is left to the TCP module or the UDP network application.
		Addresses in an Ethernet frame for an IP packet from A to E (after D) In summary, for direct communication, both the source IP address and the source Ethernet address is the sender's, and the destination IP address and the destination Ethernet address is the recipient's.
	www.ietf.org /rfc/rfc1180.txt?number=1180 (7522 words)

	K4SET An Intro to SoundCard Packet, RadioMinistries.org (Site not responding. Last check: 2007-10-20)
		Packet radio has been around since the mid-1960's, but was first seen on the amateur bands in 1978 through research done in Montreal, Canada in 1978, the first transmission occurring on May 31st.
		Whether packet is used to pass a message accurately and in large quantities or to handle messages passed by the National Traffic System, it can provide an important function like any other amateur mode when used correctly.
		Packet Networks allow amateurs to widen the area of communications past their line of sight, by having a series of packet stations linked by radio, which can be used to get their packet messages to where ever the network goes.
	radioministries.org /k4set/packet/index.htm (1311 words)

	Packet Crafting for Firewall & IDS Audits (Part 1 of 2)
		This just shows the address that the packet is going to, that S is set (SYN packet), that there are 40 bytes in the packet (normal TCP/IP header size) and that there are 0 data bytes in the packet.
		It tells you 1 packet was transmitted, 0 packets were received back, and that it was %100 packet loss.
		Normal behaviour when a UDP packet is sent to a port that is not listening is that an ICMP port unreachable message is sent.
	www.securityfocus.com /infocus/1787 (2162 words)

	packet - definition by dict.die.net
		packet n 1: a collection of things wrapped or boxed together [syn: package, bundle, parcel] 2: (computer science) a message or message fragment 3: a small package or bundle 4: a boat for carrying mail [syn: mailboat, mail boat, packet boat]
		Packet day, the day for mailing letters to go by packet; or the sailing day.
		"Packet" is a generic term used to describe a unit of data at any layer of the OSI protocol stack, but it is most correctly used to describe application layer data units ("application protocol data unit", APDU).
	dict.die.net /packet (188 words)

	Dissolution of Marriage (Divorce) Packet
		Packet 1B is for cases with children, and Packet 1C is for cases without children.
		Packet 1BC has forms that are to be used with both Packet 1B and Packet 1C.
		Packet 1D is for a spouse answering a petition for divorce where children are involved; Packet 1E is for a spouse answering a petition for divorce where children are not involved.
	www.ojd.state.or.us /osca/cpsd/courtimprovement/familylaw/flpacket1.htm (871 words)

	packet
		In general, a packet includes three principal elements: control information (such as destination, origin, length of packet), data to be transmitted, and error detection and correction bits.
		The determination of whether to forward or drop a packet according to a prescribed set of criteria, such as source or destination or packet length.
		Packet data networking technology, level 3 of X.25, defines how user messages are broken into packets, how calls are established and cleared, and how data flows across the entire PDN.
	www142.nortelnetworks.com /library/tpubs/terms/gloss_p.htm (2035 words)

	Packet radio - Wikipedia, the free encyclopedia
		Its name is a reference to the use of packet switching between network nodes, which allows multiple virtual circuits to coexist on a single radio channel.
		The first amateur packet radio stations were constructed using surplus Bell 202 1,200 bit/s modems, and despite its low data rate, Bell 202 modulation has remained the standard for VHF operation in most areas.
		Packet radio has most often been used for direct, keyboard-to-keyboard connections between stations, either between two live operators or between an operator and a bulletin board system.
	en.wikipedia.org /wiki/Packet_radio (1223 words)

	Packet switching - Wikipedia, the free encyclopedia
		Packet switching, in computer networking and telecommunications, is the now-dominant communications paradigm in which packets (units of information carriage) are routed between nodes over data links shared with other traffic.
		Packet switching is used to optimize the use of the bandwidth available in a network, to minimize the transmission latency (i.e.
		Packet switching influenced the development of the Actor model of concurrent computation in which messages sent to the same address may be delivered in an order different from the order in which they were sent.
	en.wikipedia.org /wiki/Packet_switching (1052 words)

	Packet
		Packet is one of the many modes that we, the members of ARES, use to transmit and receive critical information in a secure manner for the agencies we support in times of emergency.
		Because packet is a digital mode of transmission there are three vital components needed.
		Most of the computers in use at packet stations are older model 486 DX 66 machines with a minimum amount of memory (16 Meg) and a hard drive large enough to hold the software package, operating system and stored messages.
	www.emcomm.org /svares/packet (445 words)

	Legal Separation Packet
		Packet 2A is for cases with children, and Packet 2B is for cases without children.
		Packet 2AB has forms that are to be used with both Packet 2A and Packet 2B.
		Packet 2C is for a spouse answering a petition for separation where children are involved; Packet 2D is for a spouse answering a petition for separation where children are not involved.
	www.ojd.state.or.us /osca/cpsd/courtimprovement/familylaw/flpacket2.htm (775 words)

	PF: Packet Filtering
		Packet filtering is the selective passing or blocking of data packets as they pass through a network interface.
		Filter rules specify the criteria that a packet must match and the resulting action, either block or pass, that is taken when a match is found.
		By default, the packet is marked for passage, which can be changed by any rule, and could be changed back and forth several times before the end of the filter rules.
	www.openbsd.org /faq/pf/filter.html (3612 words)

	HF PACKET (Site not responding. Last check: 2007-10-20)
		It was invented by Bob Bruninga WA4APR (clever call letters) that utilizes GPS data to plot a packet station's location on a map of a given region, city, state, or even country.
		Another limitation to direct keyboard-to-keyboard packet is that you can only talk to one packet station at a time Q no easy way to hold round-table discussions like on a voice repeater.
		Packet Networks allow amateurs to widen the area of communications past their line of sight, by having a series of packet stations linked by radio, that can be used to get their packet messages to where ever the network goes.
	www.saraclub.net /new_page_59.htm (1611 words)

	TAPR Packet Radio
		Packet radio has been around since the mid-1960's, but was first seen on the amateur bands in 1978 through research done in Montreal, Canada in 1978.
		Packet radio is a particular digital mode of Amateur Radio ("Ham" Radio) communications which corresponds to computer telecommunications.
		Packet radio is so named because it sends the data in small bursts, or packets.
	www.tapr.org /packetradio.html (510 words)

	GRC \| OptOut -- Packet Sniffing Details and Resources (Site not responding. Last check: 2007-10-20)
		By comparison, a firewall sees all of a computer's packet traffic as well, but it has the ability to block and drop any packets that its programming dictates.
		One disturbingly powerful aspect of packet sniffers is their ability to place the hosting machine's network adapter into "promiscuous mode." Network adapters running in promiscuous mode receive not only the data directed to the machine hosting the sniffing software, but also ALL of the traffic on the physically connected local network.
		This is the packet capturing tool that I have used exclusively for all of my research.
	www.grc.com /oo/packetsniff.htm (1911 words)

	packet
		Packet Sniffer SDK (PSSDK) is the most powerful component suite for network packet capture in Windows OS family environment.
		Packet Sniffer SDK (PSSDK) VCL component set is the most powerful component suite for network packet capture in Windows OS family environment.
		Colasoft Packet Player is a replay tool which allows you to open captured packet trace file and playback in the network.
	www.downloadjunction.com /product/software/6422/index.html (451 words)

	packet - a definition from Whatis.com
		A packet is the unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network.
		When any file (e-mail message, HTML file, Graphics Interchange Format file, Uniform Resource Locator request, and so forth) is sent from one place to another on the Internet, the Transmission Control Protocol (TCP) layer of TCP/IP divides the file into "chunks" of an efficient size for routing.
		Each of these packets is separately numbered and includes the Internet address of the destination.
	whatis.techtarget.com /definition/0,289893,sid9_gci212736,00.html (250 words)

	Cisco Systems Networking Professionals Magazine-Packet Magazine - Cisco Systems
		As a result, the September issue (Third Quarter 2006) of Packet magazine will be the final edition of the publication, as we transform our corporate Website, Cisco.com, into our primary communications forum for networking professionals.
		To say that a great deal has happened in the world of high tech since Packet was first introduced in 1988 would be something of an understatement.
		The networking technology enthusiasts that make up the Packet readership have a wealth of avenues on Cisco.com in which to delve for useful information to help them in their careers.
	www.cisco.com /web/about/ac123/ac114/about_cisco_packet_magazine.html (298 words)

	NoBarc Packet
		Packet radio information Site with lots of info on how packet works.
		Internet based Packet cluster for those that don't have access to a cluster from work.
		One of my hopes as packet guy is to see about putting up a proper 2meter access port that is not as badly affected by this.
	www.nobarc.org /packet.htm (414 words)

	Packet Filtering
		The purpose of this topic is to provide a brief introduction to various techniques that can be used to filter network data and network packets on the Microsoft Windows platforms..
		The Windows 2000 Packet Filtering Interface provides a mechanism that allows a user-mode application or service to specify a set of "filter descriptors" that are used by lower-level TCP/IP components to filter packets.
		Filtering is controls pass/drop of packets based on IP source and destination address and port numbers (and port number range).
	www.ndis.com /papers/winpktfilter.htm (994 words)

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