Address Resolution Protocol (ARP) Parameters Last Updated 2008-10-01 Note Reverse Address Resolution Protocol Operation Codes The Reverse Address Resolution Protocol (RARP) specified in [RFC903] uses the "Reverse" codes below. DYNAMIC REVERSE ARP The Dynamic Reverse Address Resolution Protocol (DRARP) uses the "DRARP" codes below. For further information, see [RFC1931] INVERSE ADDRESS RESOLUTION PROTOCOL The Inverse Address Resolution Protocol (IARP) specified in [RFC1293] uses the "InARP" codes below. This registry is also available in XML and plain text formats. Registries included below * Operation Codes * Hardware Types * Protocol Type Operation Codes Registration Procedures Not defined? Reference [RFC826] Number Operation Code (op) References 1 REQUEST [RFC826] 2 REPLY [RFC826] 3 request Reverse [RFC903] 4 reply Reverse [RFC903] 5 DRARP-Request [RFC1931] 6 DRARP-Reply [RFC1931] 7 DRARP-Error [RFC1931] 8 InARP-Request [RFC1293] 9 InARP-Reply [RFC1293] 10 ARP-NAK [RFC1577] 11 MARS-Request [Grenville_Armitage] 12 MARS-Multi [Grenville_Armitage] 13 MARS-MServ [Grenville_Armitage] 14 MARS-Join [Grenville_Armitage] 15 MARS-Leave [Grenville_Armitage] 16 MARS-NAK [Grenville_Armitage] 17 MARS-Unserv [Grenville_Armitage] 18 MARS-SJoin [Grenville_Armitage] 19 MARS-SLeave [Grenville_Armitage] 20 MARS-Grouplist-Request [Grenville_Armitage] 21 MARS-Grouplist-Reply [Grenville_Armitage] 22 MARS-Redirect-Map [Grenville_Armitage] 23 MAPOS-UNARP [Mitsuru_Maruyama] Hardware Types Registration Procedures Not defined? Reference [RFC826] Number Hardware Type (hrd) Reference 1 Ethernet (10Mb) [Jon_Postel] 2 Experimental Ethernet (3Mb) [Jon_Postel] 3 Amateur Radio AX.25 [Philip_Koch] 4 Proteon ProNET Token Ring [Avri_Doria] 5 Chaos [Gill_Pratt] 6 IEEE 802 Networks [Jon_Postel] 7 ARCNET [Jon_Postel] 8 Hyperchannel [Jon_Postel] 9 Lanstar [Tom_Unger] 10 Autonet Short Address [Mike_Burrows] 11 LocalTalk [Joyce_K_Reynolds] 12 LocalNet (IBM PCNet or SYTEK LocalNET) [Joseph Murdock] 13 Ultra link [Rajiv_Dhingra] 14 SMDS [George_Clapp] 15 Frame Relay [Andy_Malis] 16 Asynchronous Transmission Mode (ATM) [[JXB2]] 17 HDLC [Jon_Postel] 18 Fibre Channel [RFC4338] 19 Asynchronous Transmission Mode (ATM) [RFC2225] 20 Serial Line [Jon_Postel] 21 Asynchronous Transmission Mode (ATM) [Mike_Burrows] 22 MIL-STD-188-220 [Herb_Jensen] 23 Metricom [Jonathan_Stone] 24 IEEE 1394.1995 [Myron_Hattig] 25 MAPOS [Mitsuru_Maruyama] 26 Twinaxial [Marion_Pitts] 27 EUI-64 [Kenji_Fujisawa] 28 HIPARP [Jean_Michel_Pittet] 29 IP and ARP over ISO 7816-3 [Scott_Guthery] 30 ARPSec [Jerome_Etienne] 31 IPsec tunnel [RFC3456] 32 InfiniBand (TM) [RFC4391] 33 TIA-102 Project 25 Common Air Interface (CAI) [Jeff Anderson, Telecommunications Industry of America (TIA) TR-8.5 Formulating Group, , June 2004] 34 Wiegand Interface [Scott_Guthery_2] 35 Pure IP [Inaky_Perez-Gonzalez] Protocol Type Registration Procedures Not defined? Reference [RFC826] Note Use the same codes as listed in the section called "Ethernet Numbers of Interest" (all hardware types use this code set for the protocol type). See: Registry is empty. People ID Name Contact URI Last Updated [Andy_Malis] Andy Malis mailto:malis_a&timeplex.com [Avri_Doria] Avri Doria mailto:avri&peoteon.com 1994-12 [George_Clapp] George Clapp mailto:meritec!clapp&bellcore.bellcore.com [Gill_Pratt] Gill Pratt mailto:gill%25mit-ccc@mc.lcs.mit.edu [Grenville_Armitage] Grenville Armitage mailto:gja&thumper.belcore.com 1995-04 [Herb_Jensen] Herb Jensen mailto:hwjensen&itt.com 1995-02 [Inaky_Perez-Gonzalez] Inaky Perez-Gonzalez mailto:inaky.perez-gonzalez&intel.com 2008-10-01 [Jean_Michel_Pittet] Jean-Michel Pittet mailto:jmp&gandalf.engr.sgi.com 1998-11 [Jerome_Etienne] Jerome Etienne mailto:jetienne&arobas.net 2000-06 [Jon_Postel] Jon Postel mailto:postel&isi.edu [Jonathan_Stone] Jonathan Stone mailto:jonathan&dsg.stanford.edu 1996-05 [Joyce_K_Reynolds] Joyce K. Reynolds mailto:jkrey&isi.edu [Kenji_Fujisawa] Kenji Fujisawa mailto:fujisawa&sm.sony.co.jp 1998-10 [Marion_Pitts] Marion Pitts mailto:marionp&vnet.ibm.com 1997-05 [Mike_Burrows] Mike Burrows mailto:burrows&src.dec.com [Mitsuru_Maruyama] Mitsuru Maruyama mailto:mitsuru&ntt-20.ecl.net 1997-03 [Myron_Hattig] Myron Hattig mailto:Myron_Hattig&ccm.jf.intel.com 1997-02 [Philip_Koch] Philip Koch mailto:Philip.Koch&dartmouth.edu [Rajiv_Dhingra] Rajiv Dhingra mailto:rajiv&ultra.com [Scott_Guthery] Scott Guthery mailto:sguthery&mobile-mind.com 2000-03 [Scott_Guthery_2] Scott Guthery mailto:sguthery&hidcorp.com 2008-09-25 [Tom_Unger] Tom Unger mailto:tom&citi.umich