Internet Standard organizations - Revision history

Pio2pio: /* UDP User Datagram Protocol */

2014-11-11T19:13:54Z

UDP User Datagram Protocol

← Older revision		Revision as of 21:13, 11 November 2014
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	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==
	Best-effort transport protocol, stateless, connectionless, unreliable, No Flow Control~~...~~		Best-effort transport protocol, stateless, connectionless, unreliable, No Flow Control, not connection-oriented

	The UDP header structure is shown as follows, defined by IETF RFC 768		The UDP header structure is shown as follows, defined by IETF RFC 768

Pio2pio: /* TCP Transmission Control Protocol */

2014-11-11T17:55:12Z

TCP Transmission Control Protocol

← Older revision		Revision as of 19:55, 11 November 2014
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	*F (FIN) No more data from sender.		*F (FIN) No more data from sender.
	'''Window''' - 16 bits. The number of data octets which the sender of this segment is willing to accept, beginning with the octet indicated in the acknowledgment field.		'''Window''' - 16 bits. The number of data octets which the sender of this segment is willing to accept, beginning with the octet indicated in the acknowledgment field.

			[[File:TCP_connection_establishment.PNG\|none\|500px\|left\|TCP_connection_establishment]]

	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==

Pio2pio: /* IPv4 */

2014-11-11T16:43:09Z

IPv4

← Older revision		Revision as of 18:43, 11 November 2014
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	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

	The ~~IPv4~~ header structure is as follows:		The IP header structure is as follows:

	{\| ~~width~~="~~400~~" border="1" cellpadding="2" cellspacing="0" ~~bordercolor~~="#~~FFFFFF~~" ~~bgcolor~~="~~#99CCFF~~" style="font-family: Arial, Helvetica, sans-serif;"		{\| style="font-family: Arial, Helvetica, sans-serif; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px" border="1" cellpadding="2" cellspacing="0" bgcolor="#99CCFF" width="400"
	~~\|- class="blacktext" style="~~color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| ~~width~~="~~12%~~" valign="top" ~~bgcolor~~="~~#FFFFFF~~" \| <div align="right">4</div>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" width="12%" \| <div align="right">4</div>
	\| ~~width~~="~~10%~~" valign="top" ~~bgcolor~~="~~#FFFFFF~~" \| <div align="right">8</div>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" width="10%" \| <div align="right">8</div>
	\| colspan="2" ~~valign~~="~~top~~" bgcolor="#FFFFFF" \| <div align="right">16</div>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" \| <div align="right">16</div>
	\| colspan="4" ~~valign~~="~~top~~" bgcolor="#FFFFFF" \| <div align="right">32 bits</div>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" \| <div align="right">32 bits</div>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| ~~width~~="~~12%~~" valign="top" \| <center>Ver.</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="12%" \| <center>Ver.</center>
	\| ~~width~~="~~10%~~" valign="top" \| <center>IHL</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="10%" \| <center>IHL</center>
	\| colspan="2" ~~valign~~="~~top~~" nowrap="nowrap" \| <center>Type of service</center>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| <center>Type of service</center>
	\| colspan="4" align="center" valign="top" \| Total length		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" align="center" valign="top" \| Total length
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="4" valign="top" \| <center>Identification</center>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Identification</center>
	\| ~~width~~="~~16%~~" valign="top" \| <center>Flags</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="16%" \| <center>Flags</center>
	\| colspan="3" ~~valign~~="~~top~~" nowrap="nowrap" \| Fragment offset		\| colspan="3" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| Fragment offset
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="2" valign="top" \| <center>Time to live</center>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Time to live</center>
	\| colspan="2" align="center" valign="top" \| Protocol		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" align="center" valign="top" \| Protocol
	\| colspan="4" ~~valign~~="~~top~~" nowrap="nowrap" \| <center>Header checksum</center>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| <center>Header checksum</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Source address</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Source address</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Destination address</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Destination address</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Option + Padding</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Option + Padding</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Data</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Data</center>
			\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px" bgcolor="#FFFFFF"
			\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <div align="center"><span class="blackitalic" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); font-style: italic">IP header structure</span><br/></div>
	\|}		\|}


	The IPv4 header structure is as follows:		The IPv4 header structure is as follows:

Pio2pio: /* UDP User Datagram Protocol */

2014-11-11T16:40:12Z

UDP User Datagram Protocol

← Older revision		Revision as of 18:40, 11 November 2014
Line 296:		Line 296:

	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==
	~~Stateless~~, connectionless, unreliable, No Flow Control...		Best-effort transport protocol, stateless, connectionless, unreliable, No Flow Control...

	The UDP header structure is shown as follows, defined by IETF RFC 768		The UDP header structure is shown as follows, defined by IETF RFC 768

Pio2pio: /* UDP User Datagram Protocol */

2014-11-11T16:39:44Z

UDP User Datagram Protocol

← Older revision		Revision as of 18:39, 11 November 2014
Line 296:		Line 296:

	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==
	Stateless,...		Stateless, connectionless, unreliable, No Flow Control...

	The UDP header structure is shown as follows, defined by IETF RFC 768		The UDP header structure is shown as follows, defined by IETF RFC 768

Pio2pio: /* TCP Transmission Control Protocol */

2014-11-11T16:39:06Z

TCP Transmission Control Protocol

Pio2pio: /* UDP User Datagram Protocol */

2014-11-11T16:30:01Z

UDP User Datagram Protocol

← Older revision		Revision as of 18:30, 11 November 2014
Line 296:		Line 296:

	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==
	The UDP header structure is shown as follows:		Stateless,...

			The UDP header structure is shown as follows, defined by IETF RFC 768
	<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">		<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">
	{\| width="396" border="1" cellpadding="2" cellspacing="0" bordercolor="#FFFFFF" bgcolor="#99CCFF"		{\| width="396" border="1" cellpadding="2" cellspacing="0" bordercolor="#FFFFFF" bgcolor="#99CCFF"
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	\|}		\|}
	</div>		</div>

	~~The User Datagram Protocol (UDP), defined by IETF RFC 768~~

Pio2pio: /* TCP Transmission Control Protocol */

2014-11-11T16:29:22Z

TCP Transmission Control Protocol

← Older revision		Revision as of 18:29, 11 November 2014
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	= L4 TCP/UDP =		= L4 TCP/UDP =
	== TCP Transmission Control Protocol ==		== TCP Transmission Control Protocol ==
			Stateful, connection-orientated, reliable

	The TCP header structure is as follows, IETF RFC 793 defined		The TCP header structure is as follows, IETF RFC 793 defined
	<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">		<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">

Pio2pio: /* TCP Transmission Control Protocol */

2014-11-11T16:23:56Z

TCP Transmission Control Protocol

← Older revision		Revision as of 18:23, 11 November 2014
Line 249:		Line 249:
	= L4 TCP/UDP =		= L4 TCP/UDP =
	== TCP Transmission Control Protocol ==		== TCP Transmission Control Protocol ==
	The TCP header structure is as follows:		The TCP header structure is as follows, IETF RFC 793 defined
	<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">		<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">
	{\| width="400" border="1" cellpadding="2" cellspacing="0" bordercolor="#FFFFFF" bgcolor="#99CCFF"		{\| width="400" border="1" cellpadding="2" cellspacing="0" bordercolor="#FFFFFF" bgcolor="#99CCFF"
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	</div>		</div>

	~~IETF RFC 793 defined~~		'''Control bits''' - 6 bits. The control bits may be (from right to left):
			*U (URG) Urgent pointer field significant.
			*A (ACK) Acknowledgment field significant.
			*P (PSH) Push function.
			*R (RST) Reset the connection.
			*S (SYN) Synchronize sequence numbers.
			*F (FIN) No more data from sender.
			'''Window''' - 16 bits. The number of data octets which the sender of this segment is willing to accept, beginning with the octet indicated in the acknowledgment field.

	== UDP User Datagram Protocol ==		== UDP User Datagram Protocol ==

Pio2pio: /* UDP */

2014-11-11T16:19:04Z

UDP

← Older revision		Revision as of 18:19, 11 November 2014
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	IETF RFC 793 defined		IETF RFC 793 defined

	== UDP ==		== UDP User Datagram Protocol ==
	The UDP header structure is shown as follows:		The UDP header structure is shown as follows:
	<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">		<div align="left" style="color: rgb(0, 0, 51); font-family: Arial, Helvetica, sans-serif;">

← Older revision		Revision as of 18:43, 11 November 2014
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	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

	The ~~IPv4~~ header structure is as follows:		The IP header structure is as follows:

	{\| ~~width~~="~~400~~" border="1" cellpadding="2" cellspacing="0" ~~bordercolor~~="#~~FFFFFF~~" ~~bgcolor~~="~~#99CCFF~~" style="font-family: Arial, Helvetica, sans-serif;"		{\| style="font-family: Arial, Helvetica, sans-serif; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px" border="1" cellpadding="2" cellspacing="0" bgcolor="#99CCFF" width="400"
	~~\|- class="blacktext" style="~~color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| ~~width~~="~~12%~~" valign="top" ~~bgcolor~~="~~#FFFFFF~~" \| <div align="right">4</div>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" width="12%" \| <div align="right">4</div>
	\| ~~width~~="~~10%~~" valign="top" ~~bgcolor~~="~~#FFFFFF~~" \| <div align="right">8</div>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" width="10%" \| <div align="right">8</div>
	\| colspan="2" ~~valign~~="~~top~~" bgcolor="#FFFFFF" \| <div align="right">16</div>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" \| <div align="right">16</div>
	\| colspan="4" ~~valign~~="~~top~~" bgcolor="#FFFFFF" \| <div align="right">32 bits</div>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" bgcolor="#FFFFFF" valign="top" \| <div align="right">32 bits</div>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| ~~width~~="~~12%~~" valign="top" \| <center>Ver.</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="12%" \| <center>Ver.</center>
	\| ~~width~~="~~10%~~" valign="top" \| <center>IHL</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="10%" \| <center>IHL</center>
	\| colspan="2" ~~valign~~="~~top~~" nowrap="nowrap" \| <center>Type of service</center>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| <center>Type of service</center>
	\| colspan="4" align="center" valign="top" \| Total length		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" align="center" valign="top" \| Total length
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="4" valign="top" \| <center>Identification</center>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Identification</center>
	\| ~~width~~="~~16%~~" valign="top" \| <center>Flags</center>		\| style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" width="16%" \| <center>Flags</center>
	\| colspan="3" ~~valign~~="~~top~~" nowrap="nowrap" \| Fragment offset		\| colspan="3" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| Fragment offset
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="2" valign="top" \| <center>Time to live</center>		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Time to live</center>
	\| colspan="2" align="center" valign="top" \| Protocol		\| colspan="2" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" align="center" valign="top" \| Protocol
	\| colspan="4" ~~valign~~="~~top~~" nowrap="nowrap" \| <center>Header checksum</center>		\| colspan="4" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" nowrap="nowrap" valign="top" \| <center>Header checksum</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Source address</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Source address</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Destination address</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Destination address</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Option + Padding</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Option + Padding</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px"
	\| colspan="8" valign="top" \| <center>Data</center>		\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <center>Data</center>
			\|- class="blacktext" style="font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); font-size: 12px" bgcolor="#FFFFFF"
			\| colspan="8" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px" valign="top" \| <div align="center"><span class="blackitalic" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px; color: rgb(0, 0, 0); font-style: italic">IP header structure</span><br/></div>
	\|}		\|}


	The IPv4 header structure is as follows:		The IPv4 header structure is as follows:

← Older revision		Revision as of 18:39, 11 November 2014
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	\| width="12%" valign="top" \| Destination port		\| width="12%" valign="top" \| Destination port
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| colspan="9" valign="top" \| <center>Sequence number</center>		\| colspan="9" valign="top" \| <center>Sequence number (16)</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| colspan="9" valign="top" \| <center>Acknowledgement number</center>		\| colspan="9" valign="top" \| <center>Acknowledgement number (16)</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| width="12%" valign="top" \| <center>Offset</center>		\| width="12%" valign="top" \| <center>Data Offset aka hdr len</center>
	\| width="13%" valign="top" \| <center>Resrvd</center>		\| width="13%" valign="top" \| <center>Resrvd</center>
	\| width="4%" valign="top" \| <center>U</center>		\| width="4%" valign="top" \| <center>U</center>
Line 273:		Line 273:
	\| width="4%" valign="top" \| <center>S</center>		\| width="4%" valign="top" \| <center>S</center>
	\| width="4%" valign="top" \| <center>F</center>		\| width="4%" valign="top" \| <center>F</center>
	\| width="12%" valign="top" \| <center>Window</center>		\| width="12%" valign="top" \| <center>Window (16)</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| colspan="8" valign="top" \| <center>Checksum</center>		\| colspan="8" valign="top" \| <center>Checksum</center>
	\| width="12%" valign="top" \| <center>Urgent pointer</center>		\| width="12%" valign="top" \| <center>Urgent pointer</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| colspan="9" valign="top" \| <center>Option + Padding</center>		\| colspan="9" valign="top" \| <center>Option (0 or 32 if any) + Padding</center>
	\|- class="blacktext" style="color: rgb(0, 0, 0);"		\|- class="blacktext" style="color: rgb(0, 0, 0);"
	\| colspan="9" valign="top" \| <center>Data</center>		\| colspan="9" valign="top" \| <center>Data</center>