ZyXEL Communications Parental Control Gateway HS100/HS100W - Manual (Page 168)

HomeSafe User’s Guide
12-14 Parental Control
type (TCP, UDP, or ICMP). The second field indicates the IP port number that defines the
service. (Note that there may be more than one IP protocol type. For example, look at the default
configuration labeled “(DNS)”.
(UDP/TCP:53) means UDP port 53 and TCP port 53.
Table 12-4 Services
SERVICE DESCRIPTION
AIM/New-ICQ(TCP:5190) AOL’s Internet Messenger service, used as a listening port by ICQ.
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,
24032) A popular videoconferencing solution from White Pines Software.
DNS(UDP/TCP:53) Domain Name Server, a service that matches web names (e.g.
www.zyxel.com ) to IP numbers.
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:20.21) File Transfer Program, a program to 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.
ICQ(UDP:4000) This is a popular Internet chat program.
IKE(UDP:500) The Internet Key Exchange algorithm is used for key distribution and
management.
IPSEC_TUNNEL(AH:0) The IPSEC AH (Authentication Header) tunneling protocol uses this
service.
IPSEC_TUNNEL(ESP:0) The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol
uses this service.
IRC(TCP/UDP:6667) This is another popular Internet chat program.
MSN Messenger(TCP:1863) Microsoft Networks’ messenger service uses this protocol.
MULTICAST(IGMP:0) Internet Group Multicast Protocol is used when sending packets to a
specific group of hosts.
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(ICMP:0) Packet INternet Groper is a protocol that sends out ICMP echo requests
to test whether or not a remote host is reachable.