ZyXEL Communications GS2200-24 Series, User Manual

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Chapter 20 Classifier
GS2200-24 User’s Guide
173
The following table shows some other common Ethernet types and the
corresponding protocol number.
In the Internet Protocol there is a field, called “Protocol”, to identify the next level
protocol. The following table shows some common protocol types and the
corresponding protocol number. Refer to
http://www.iana.org/assignments/
protocol-numbers for a complete list.
Some of the most common TCP and UDP port numbers are:
See Appendix B on page 341 for information on commonly used port numbers.
Table 45 Common Ethernet Types and Protocol Numbers
ETHERNET TYPE PROTOCOL NUMBER
IP ETHII 0800
X.75 Internet 0801
NBS Internet 0802
ECMA Internet 0803
Chaosnet 0804
X.25 Level 3 0805
XNS Compat 0807
Banyan Systems 0BAD
BBN Simnet 5208
IBM SNA 80D5
AppleTalk AARP 80F3
Table 46 Common IP Protocol Types and Protocol Numbers
PROTOCOL TYPE PROTOCOL NUMBER
ICMP 1
TCP 6
UDP 17
EGP 8
L2TP 115
Table 47 Common TCP and UDP Port Numbers
PROTOCOL NAME TCP/UDP PORT NUMBER
FTP 21
Telnet 23
SMTP 25
DNS 53
HTTP 80
POP3 110