# # Internet (IP) protocols # # @(#)protocols 8.1 (Berkeley) 6/9/93 # ip 0 IP # internet protocol, pseudo protocol number icmp 1 ICMP # internet control message protocol igmp 2 IGMP # internet group management protocol ggp 3 GGP # gateway-gateway protocol tcp 6 TCP # transmission control protocol egp 8 EGP # exterior gateway protocol pup 12 PUP # PARC universal packet protocol udp 17 UDP # user datagram protocol hmp 20 HMP # host monitoring protocol xns-idp 22 XNS-IDP # Xerox NS IDP rdp 27 RDP # reliable data protocol iso-tp4 29 ISO-TP4 # ISO Transport Protocol Class 4 iso-ip 80 ISO-IP # ISO Internet Protocol encap 98 ENCAP # RFC1241 encapsulation