Rule 2 allows a “My Service” connection from the WAN to IP addresses 10.0.0.10 through 10.0.0.15 on the LAN.
Figure 51 Firewall Example: Rule Summary: My Service
11.10 Predefined Services
The Available Services list box in the Edit Rule screen (see Section 11.6.1 on page 118) displays all predefined services that the Prestige 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) means UDP port 53 and TCP port 53. Up to 128 entries are supported. Custom service ports may also be configured using the Edit Customized Services function discussed previously.
Table 37 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. |
|
|
Chapter 11 Firewall Configuration | 126 |