ZyXEL FSG1100HN User Guide - Page 155
Examples of Services continued, The Network Basic Input/Output System is
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Appendix E Services Examples of Services (continued) NAME PROTOCOL PORT(S) DESCRIPTION FTP TCP 20 File Transfer Program, a program to enable TCP 21 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 (MULTICAST) User-Defined 2 Internet Group Multicast Protocol is 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. MSN Messenger TCP 1863 Microsoft Networks' messenger service uses this protocol. NetBIOS TCP/UDP 137 TCP/UDP 138 TCP/UDP 139 The Network Basic Input/Output System is used for communication between computers on a LAN. TCP/UDP 445 NEW-ICQ TCP 5190 An Internet chat program. NEWS TCP 144 A protocol for news groups. NFS UDP 2049 Network File System - NFS is a client/server distributed file service that provides transparent file sharing for network environments. NNTP TCP 119 Network News Transport Protocol is the delivery mechanism for the USENET newsgroup service. PING User-Defined 1 Packet Internet Groper is a protocol that sends out ICMP echo requests to test whether or not a remote host is reachable. FSG1100HN User's Guide 155