ZyXEL Communications GS2200-24P Series, User Manual, Page: 179 / 360

Chapter 20 Classifier
GS2200-24/24P User’s Guide
179
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 345 for information on commonly used port numbers.
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 49 Common IP Protocol Types and Protocol Numbers
PROTOCOL TYPE PROTOCOL NUMBER
ICMP 1
TCP 6
UDP 17
EGP 8
L2TP 115
Table 50 Common TCP and UDP Port Numbers
PROTOCOL NAME TCP/UDP PORT NUMBER
FTP 21
Telnet 23
SMTP 25
DNS 53
HTTP 80
POP3 110
Table 48 Common Ethernet Types and Protocol Numbers
ETHERNET TYPE PROTOCOL NUMBER