3 Following is a simple selection of well known numbers, useful when working with Ethereal. This is not intended to replace comprehensive network documentation.
6 Ethernet addresses [RFC 1700]:
7 ------------------------------
8 ff:ff:ff:ff:ff:ff Broadcast, send to all nodes
13 46 - 1500 length field (Ethernet-II)
14 0x0800 IP(V4), internet protocol version 4
15 0x0806 ARP, address resolution protocol
16 0x8137 IPX, internet packet exchange (Novell)
20 127.0.0.0 - 127.255.255.255 local loopback, should never appear on the network
21 224.0.0.0 - 239.255.255.255 multicasting [RFC1112], transmission to a host group
22 255.255.255.255 limited Broadcast, send to all nodes
24 IP private addresses [RFC 1597]:
25 --------------------------------
26 The following IP addresses will not be routed, and should be used for private networks:
27 10.0.0.0 - 10.255.255.255 private in Class A
28 172.16.0.0 - 172.31.255.255 private in Class B
29 192.168.0.0 - 192.168.255.255 private in Class C
33 0.1.0.0 - 126.0.0.0 Class A
34 128.0.0.0 - 191.255.0.0 Class B
35 192.0.1.0 - 223.255.255.0 Class C
36 224.0.0.0 - 239.255.255.255 Class D
37 240.0.0.0 - 247.255.255.255 Class E
41 1 ICMP internet control message protocol v 4
42 6 TCP transmission control protocol
43 17 UDP user datagram protocol
44 58 ICMPv6 internet control message protocol v 6
46 TCP/UDP ports [RFC 1700]:
47 -------------------------
48 20 FTP-data file transfer protocol
49 21 FTP-ctrl file transfer protocol
51 23 Telnet telecommunications networking
52 25 SMTP simple mail transfer protocol
53 53 DNS domain name server
54 67 BOOTPS bootstrap protocol server / DHCP
55 68 BOOTPC bootstrap protocol client / DHCP
56 69 TFTP trivial file transfer protocol
57 80 HTTP hypertext transfer protocol
58 102 ISO-TSAP iso on tcp
59 110 POP3 post office protocol version 3
60 119 NNTP network news transfer protocol
61 123 NTP network time protocol
62 137 NETBIOS name service
65 143 IMAP interim mail access protocol v2
66 161 SNMP simple network management protocol
67 194 IRC internet relay chat protocol
68 389 LDAP lightweight directory access protocol
69 443 HTTPS http through SSL
70 2401 CVSPSERVER concurrent versioning system
76 ARP RFC 826 "An Ethernet Address Resolution Protocol"
77 BOOTP RFC 951 "BOOTSTRAP PROTOCOL (BOOTP)"
78 CSLIP RFC 1144 "Compressing TCP/IP Headers for Low-Speed Serial Links"
79 DHCP RFC 2131 "Dynamic Host Configuration Protocol"
80 DNS RFC 1034,1035 "DOMAIN NAMES"
81 FTP RFC 959 "FILE TRANSFER PROTOCOL (FTP)"
82 HTTP RFC 2068 "Hypertext Transfer Protocol -- HTTP/1.1"
83 ICMP RFC 792 "INTERNET CONTROL MESSAGE PROTOCOL"
84 IMAPv4 RFC 2060 "INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1"
85 IPv4 RFC 791 "INTERNET PROTOCOL"
86 IP RFC 894 "Transmission of IP Datagrams over Ethernet Networks"
87 IP RFC 950 "Internet Standard Subnetting Procedure"
88 IP RFC 1112 "Host Extensions for IP Multicasting"
89 IP RFC 1812 "Requirements for IP Version 4 Routers"
90 MIME RFC 2045-2049 "Multipurpose Internet Mail Extensions (MIME)"
91 NetBIOS RFC 1001,1002 "NetBIOS SERVICE ON A TCP/UDP TRANSPORT"
92 NFS RFC 1014,1057,1094,1813 "XDR/SUN-RPC/NFS/NFSv3"
93 NNTP RFC 977 "Network News Transfer Protocol"
94 NTP RFC 958 "Network Time Protocol (NTP)"
95 POP2 RFC 918 "POST OFFICE PROTOCOL"
96 POP3 RFC 1725 "Post Office Protocol - Version 3"
97 PPP RFC 1661 "The Point-to-Point Protocol (PPP)"
98 PPP-MP RFC 1990 "The PPP Multilink Protocol (MP)"
99 RARP RFC 903 "A Reverse Address Resolution Protocol"
100 SLIP RFC 1055 "TRANSMISSION OF IP DATAGRAMS OVER SERIAL LINES: SLIP"
101 SMTP RFC 821,822 "SIMPLE MAIL TRANSFER PROTOCOL"
102 SNMP RFC 1157,1901-10,2271-75 "A Simple Network Management Protocol (SNMP)"
103 UDP RFC 768 "User Datagram Protocol"
104 URN RFC 1737 "Functional Requirements for Uniform Resource Names"
105 URL RFC 1738 "Uniform Resource Locators (URL)"
106 TCP RFC 793 "TRANSMISSION CONTROL PROTOCOL"
107 TELNET RFC 854,855 "TELNET PROTOCOL SPECIFICATION"
108 TELNET RFC 1700 see: TELNET OPTIONS
109 TFTP RFC 783 "THE TFTP PROTOCOL (REVISION 2)"
111 RFC 1166 "INTERNET NUMBERS" list of assigned IP addresses
112 RFC 1700 "ASSIGNED NUMBERS" Various assigned numbers, e.g. TCP/UDP ports