Predefined Services; Figure 65 My Service Example Rule Summary; Table 53 Predefined Services - ZyXEL Communications ZyAir G-2000 PlusV2 User Manual

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.

11.8 Predefined Services

The Available Services list box in the Edit Rule screen (
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).
(UDP/TCP:53)
using the Custom Services function discussed previously.

Table 53 Predefined Services

SERVICE
AIM/New-ICQ(TCP:5190)
AUTH(TCP:113)
BGP(TCP:179)
BOOTP_CLIENT(UDP:68)
BOOTP_SERVER(UDP:67)
CU-SEEME (TCP/UDP:7648,
24032)
DNS(UDP/TCP:53)
FINGER(TCP:79)
Chapter 11 Firewall Screens
means UDP port 53 and TCP port 53. Custom services may also be configured
DESCRIPTION
AOL's Internet Messenger service, used as a listening port by ICQ.
Authentication protocol used by some servers.
Border Gateway Protocol.
DHCP Client.
DHCP Server.
A popular videoconferencing solution from White Pines Software.
Domain Name Server, a service that matches web names (e.g.
www.zyxel.com) to IP numbers.
Finger is a UNIX or Internet related command that can be used to find
out if a user is logged on.
ZyXEL G-2000 Plus v2 User's Guide
Figure 59 ) displays all predefined
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