2 # Internet (IP) protocols
4 # $Id: protocols,v 1.9 1997/12/19 22:03:25 julian Exp $
5 # from: @(#)protocols 5.1 (Berkeley) 4/17/89
7 # See also http://www.iana.org/in-notes/iana/assignments/protocol-numbers
9 ip 0 IP # internet protocol, pseudo protocol number
10 #hopopt 0 HOPOPT # hop-by-hop options for ipv6
11 icmp 1 ICMP # internet control message protocol
12 igmp 2 IGMP # Internet Group Management
13 ggp 3 GGP # gateway-gateway protocol
14 ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``IP'')
15 st 5 ST # ST datagram mode
16 tcp 6 TCP # transmission control protocol
17 egp 8 EGP # exterior gateway protocol
18 pup 12 PUP # PARC universal packet protocol
19 udp 17 UDP # user datagram protocol
20 hmp 20 HMP # host monitoring protocol
21 xns-idp 22 XNS-IDP # Xerox NS IDP
22 rdp 27 RDP # "reliable datagram" protocol
23 iso-tp4 29 ISO-TP4 # ISO Transport Protocol class 4
24 xtp 36 XTP # Xpress Tranfer Protocol
25 idpr-cmtp 39 IDPR-CMTP # IDPR Control Message Transport
27 ipv6-route 43 IPV6-ROUTE # routing header for ipv6
28 ipv6-frag 44 IPV6-FRAG # fragment header for ipv6
29 rsvp 46 RSVP # Resource ReSerVation Protocol
30 gre 47 GRE # Generic Routing Encapsulation (RFC 1702)
31 esp 50 ESP # encapsulating security payload
32 ah 51 AH # authentication header
34 ipv6-icmp 58 IPV6-ICMP # ICMP for IPv6
35 ipv6-nonxt 59 IPV6-NONXT # no next header for ipv6
36 ipv6-opts 60 IPV6-OPTS # destination options for ipv6
37 vmtp 81 VMTP # Versatile Message Transport
38 ospf 89 OSPFIGP # Open Shortest Path First IGP
39 ipip 94 IPIP # Yet Another IP encapsulation
40 encap 98 ENCAP # Yet Another IP encapsulation
41 divert 254 DIVERT # Divert pseudo-protocol