Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
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» RFC Reference guide
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» Ethernet Type codes
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Ethernet type codes (Ethertype)

An ethernet type code is a two digit hex number which is located at byte offset 12 in the ethernet frame header. This type code can determine the difference between IPv4, IPv6, IPX, ARP, RARP, X.25 etc. on a network. Information on how to extract ethernet type codes from, and detect ethernet frames with either C# or VB.NET is contained in chapter 13 of Network programming in .NET (Buy at Amazon UK) (Buy at Amazon US)

0000-05DCIEEE802.3 Length Field (0.:1500.)
0101-01FF Experimental
0200Xerox PUP (conflicts with 802.3 Length Field range) (see 0A00)
0201Xerox PUP Address Translation (conflicts ...) (see 0A01)
0400Nixdorf (conflicts with 802.3 Length Field)
0600Xerox NS IDP
0601XNS Address Translation (3Mb only)
0800DOD Internet Protocol (IP) version 4
0801X.75 Internet
0802NBS Internet
0803ECMA Internet
0804CHAOSnet
0805X.25 Level 3
0806Address Resolution Protocol (ARP) (for IP and for CHAOS)
0807XNS Compatibility
081CSymbolics Private
0888-088AXyplex
0900Ungermann-Bass network debugger
0A00Xerox IEEE802.3 PUP
0A01Xerox IEEE802.3 PUP Address Translation
0BADBanyan Systems
0BAFBanyon VINES Echo
1000Berkeley Trailer negotiation
1001-100FBerkeley Trailer encapsulation for IP
1234DCA - Multicast
1600VALID system protocol
1989Artificial Horizons ("Aviator" dogfight simulator [on Sun])
1995Datapoint Corporation (RCL lan protocol)
3C003Com NBP virtual circuit datagram (like XNS SPP) not registered
3C013Com NBP System control datagram not registered
3C023Com NBP Connect request (virtual cct) not registered
3C033Com NBP Connect repsonse not registered
3C043Com NBP Connect complete not registered
3C053Com NBP Close request (virtual cct) not registered
3C063Com NBP Close response not registered
3C073Com NBP Datagram (like XNS IDP) not registered
3C083Com NBP Datagram broadcast not registered
3C093Com NBP Claim NetBIOS name not registered
3C0A3Com NBP Delete Netbios name not registered
3C0B3Com NBP Remote adaptor status request not registered
3C0C3Com NBP Remote adaptor response not registered
3C0D3Com NBP Reset not registered
4242PCS Basic Block Protocol
424CInformation Modes Little Big LAN diagnostic
4321THD - Diddle
4C42Information Modes Little Big LAN
5208BBN Simnet Private
6000DEC unassigned
6001DEC Maintenance Operation Protocol (MOP) Dump/Load Assistance
6002DEC Maintenance Operation Protocol (MOP) Remote Console
6003DECNET Phase IV
6004DEC Local Area Transport (LAT)
6005DEC diagnostic protocol (at interface initialization)
6006DEC customer protocol
6007DEC Local Area VAX Cluster (LAVC)
6008DEC AMBER
6009DEC MUMPS
6010-60143Com Corporation
7000Ungermann-Bass download
7001Ungermann-Bass NIUs
7002Ungermann-Bass diagnostic/loopback
7003Ungermann-Bass (NMC to/from UB Bridge)
7005Ungermann-Bass Bridge Spanning Tree
7007OS/9 Microware
7009OS/9 Net
7020-7029LRT (England) (now Sintrom)
7030Racal-Interlan
7031Prime NTS (Network Terminal Service)
7034Cabletron
8003Cronus VLN
8004Cronus Direct
8005HP Probe protocol
8006Nestar
8008AT&T/Stanford Univ. Local use
8010Excelan
8013Silicon Graphics diagnostic
8014Silicon Graphics network games
8015Silicon Graphics reserved
8016Silicon Graphics XNS NameServer
8019Apollo DOMAIN
802ETymshare
802FTigan
8035Reverse Address Resolution Protocol (RARP)
8036Aeonic Systems
8037IPX (Novell Netware)
8038DEC LanBridge Management
8039DEC DSM/DDP
803ADEC Argonaut Console
803BDEC VAXELN
803CDEC DNS Naming Service
803DDEC Ethernet CSMA/CD Encryption Protocol
803EDEC Distributed Time Service
803FDEC LAN Traffic Monitor Protocol
8040DEC PATHWORKS DECnet NETBIOS Emulation
8041DEC Local Area System Transport
8042DEC unassigned
8044Planning Research Corp.
8046-8047AT&T
8048DEC Availability Manager for Distributed Systems DECamds (but someone at DEC says not)
8049ExperData
805BVMTP (Versatile Message Transaction Protocol
805CStanford V Kernel
805DEvans & Sutherland
8060Little Machines
8062Counterpoint Computers
8065-8066University of Mass. at Amherst
8067Veeco Integrated Automation
8068General Dynamics
8069AT&T
806AAutophon
806CComDesign
806DCompugraphic Corporation
806E-8077 Landmark Graphics Corporation
807AMatra
807BDansk Data Elektronik
807CMerit Internodal (or Univ of Michigan)
807D-807FVitalink Communications
8080Vitalink TransLAN III Management
8081-8083Counterpoint Computers
8088-808AXyplex
809BEtherTalk (AppleTalk over Ethernet)
809C-809EDatability
809FSpider Systems Ltd.
80A3Nixdorf Computers
80A4-80B3Siemens Gammasonics Inc.
80C0-80C3DCA (Digital Comm. Assoc.) Data Exchange Cluster
80C6Pacer Software
80C7Applitek Corporation
80C8-80CCIntergraph Corporation
80CD-80CEHarris Corporation
80CF-80D2Taylor Instrument
80D3-80D4Rosemount Corporation
80D5IBM SNA Services over Ethernet
80DDVarian Associates
80DE-80DFTRFS (Integrated Solutions Transparent Remote File System)
80E0-80E3Allen-Bradley
80E4-80F0Datability
80F2Retix
80F3AppleTalk Address Resolution Protocol (AARP)
80F4-80F5Kinetics
80F7Apollo Computer
80FF-8101Wellfleet Communications
8102Wellfleet; BOFL (Breath OF Life) pkts [every 5-10 secs.]
8103Wellfleet Communications
8107-8109Symbolics Private
812BTalaris
8130Waterloo Microsystems Inc.
8131VG Laboratory Systems
8137Novell (old) NetWare IPX (ECONFIG E option)
8138Novell
8139-813DKTI
813FM/MUMPS data sharing
8145Vrije Universiteit (NL) Amoeba 4 RPC (obsolete)
8146Vrije Universiteit (NL) FLIP (Fast Local Internet Protocol)
8147Vrije Universiteit (NL) [reserved]
814CSNMP over Ethernet (see RFC1089)
814FTechnically Elite Concepts Network Professor
8191PowerLAN NetBIOS/NetBEUI (PC)
817DXTP
81D6Artisoft Lantastic
81D7Artisoft Lantastic
8203-8205QNX Software Systems Ltd.
8390Accton Technologies (unregistered)
852BTalaris multicast
8582Kalpana
86DDIP version 6
8739Control Technology Inc. RDP Without IP
873AControl Technology Inc. Mcast Industrial Ctrl Proto.
873BControl Technology Inc. Proprietary
873CControl Technology Inc. Proprietary
8820Hitachi Cable (Optoelectronic Systems Laboratory)
8856Axis Communications AB proprietary bootstrap/config
8888HP LanProbe test
9000Loopback (Configuration Test Protocol)
90013Com (Formerly Bridge Communications)
90023Com (Formerly Bridge Communications)
90033Com (Formerly Bridge Communications)
AAAADECNET Used by VAX 6220 DEBNI
FAF5Sonix Arpeggio
FF00BBN VITAL-LanBridge cache wakeups



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