ZyXEL g-2000 plusv2 사용자 가이드
ZyXEL G-2000 Plus v2 User’s Guide
Chapter 11 Firewall Screens
159
Figure 65 My Service Example Rule Summary
Rule 1: Allows a My Service connection from the WAN to IP addresses 10.0.0.10 through
10.0.0.15 on the LAN.
10.0.0.15 on the LAN.
11.8 Predefined Services
The Available Services list box in the Edit Rule screen (
) displays all predefined
services that the ZyXEL device already supports. Next to the name of the service, two fields
appear in brackets. The first field indicates the IP protocol 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).
appear in brackets. The first field indicates the IP protocol 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. Custom services may also be configured
using the Custom Services function discussed previously.
Table 53 Predefined 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.