Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols

Protocol number

Keyword

Protocol

47

GRE

General Routing Encapsulation

48

MHRP

Mobile Host Routing Protocol

50

ESP

Encapsulation Security Payload

51

AH

Authentication Header

53

SWIPE

IP with Encryption

54

NHRP

NBMA Next Hop Resolution

 

 

Protocol

61

 

any host internal protocol

63

 

any local network

64

SAT-EXPAK

SATNET and Backroom EXPAK

65

KRYPTOLAN

Kryptolan

66

RVD

MIT Remote Virtual Disk Protocol

68

 

any distributed file system

69

SAT-MON

SATNET Monitoring

70

VISA

VISA Protocol

75

PVP

Packet Video Protocol

80

ISO-IP

ISO Internet Protocol

84

TTP

TTP

85

NSFNET-IGP

NSFNET-IGP

86

DGP

Dissimilar Gateway Protocol

87

TCF

TCF

88

EIGRP

EIGRP

91

LARP

Locus Address Resolution Protocol

92

MTP

Multicast Transport Protocol

93

AX.25

AX.25 Frames

94

IPIP

IP-within-IP Encapsulation Protocol

95

MICP

Mobile Internetworking Control Pro.

97

ETHERIP

Ethernet-within-IP Encapsulation

98

ENCAP

Encapsulation Header

99

 

any private encryption scheme

100

GMTP

GMTP

115

L2TP

Layer Two Tunneling Protocol

255

 

Reserved

IP intervals

This is a list of the IP addresses available for different netmasks. The first column shows the number of bits used for the net address, i. e., is set to 1 in the netmask. The second column maps the number of bits to a netmask on the usual octet-dot format. The third column shows the address class for this netmask.

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HP VCX Software manual IP intervals