4IPNET OWL800, Руководство пользователя

Страница: 80 / 108

User’s Manual
OWL800 / OWL2000 / HSG800
ENGLISH
© 2008 4IPNET, INC.
71
4.4.5 Firewall
Firewall rules in the Global Policy or individual Policy (1 ~ 16) can be defined to filter the traffic that travels through
the system. When a packet matches the specified Source, Destination, and Protocol, the corresponding Action
(Pass or Block) will be taken.
Gateway Mode >> Global Firewall
Gateway Mode >> Policy Firewall
To add a rule to the Firewall list, specify the values of following fields and click the Add button. A rule in the list can
be deleted ( Delete button) from the list or edited ( Edit button).
ƒ
Source IP / Subnet Mask : The combination of these two fields specifies either the IP address of a source host
or the source network segment. For example, 192.168.1.101 with 255.255.255.255 (/32) stands for a single host
- 192.168.1.101, while 192.168.1.0 with 255.255.255.0 (/24) indicates this is a Class C subnet - 192.168.1.xxx.
ƒ
Destination IP / Subnet Mask : The combination of these two fields specifies either the IP address of a
destination host or the destination network segment. For example, 192.168.2.101 with 255.255.255.255 (/32)
stands for a single host - 192.168.2.101, while 192.168.2.0 with 255.255.255.0 (/24) indicates this is a Class C