ZyXEL Communications wireless n gigbit router zyxel manual 370, Examples of Services

Appendix E Services

Table 136 Examples of Services

NAME	PROTOCOL	PORT(S)	DESCRIPTION
AH	User-Defined	51	The IPSEC AH (Authentication Header)
(IPSEC_TUNNEL)			tunneling protocol uses this service.
AIM	TCP	5190	AOL’s Internet Messenger service.
AUTH	TCP	113	Authentication protocol used by some
			servers.
BGP	TCP	179	Border Gateway Protocol.
BOOTP_CLIENT	UDP	68	DHCP Client.
BOOTP_SERVER	UDP	67	DHCP Server.
CU-SEEME	TCP/UDP	7648	A popular videoconferencing solution
	TCP/UDP	24032	from White Pines Software.
DNS	TCP/UDP	53	Domain Name Server, a service that
			matches web names (e.g.
			www.zyxel.com) to IP numbers.
ESP	User-Defined	50	The IPSEC ESP (Encapsulation
(IPSEC_TUNNEL)			Security Protocol) tunneling protocol
			uses this service.
FINGER	TCP	79	Finger is a UNIX or Internet related
			command that can be used to find out
			if a user is logged on.
FTP	TCP	20	File Transfer Program, a program to
	TCP	21	enable fast transfer of files, including
			large files that may not be possible by
			e-mail.
H.323	TCP	1720	NetMeeting uses this protocol.
HTTP	TCP	80	Hyper Text Transfer Protocol - a
			client/server protocol for the world
			wide web.
HTTPS	TCP	443	HTTPS is a secured http session often
			used in e-commerce.
ICMP	User-Defined	1	Internet Control Message Protocol is
			often used for diagnostic purposes.
ICQ	UDP	4000	This is a popular Internet chat
			program.
IGMP	User-Defined	2	Internet Group Multicast Protocol is
(MULTICAST)			used when sending packets to a
			specific group of hosts.
IKE	UDP	500	The Internet Key Exchange algorithm
			is used for key distribution and
			management.
IMAP4	TCP	143	The Internet Message Access Protocol
			is used for e-mail.
IMAP4S	TCP	993	This is a more secure version of IMAP4
			that runs over SSL.
IRC	TCP/UDP	6667	This is another popular Internet chat
			program.

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NBG-460N User’s Guide