ZyXEL Communications Prestige 645R-A Series, Руководство пользователя, Страница: 160 / 251

Prestige 645R-A Series User’s Guide
17-10 Filter Configuration
Table 17-3 Menu 21.x.1 TCP/IP Filter Rule
FIELD DESCRIPTION EXAMPLE
TCP Estab This applies only when the IP Protocol field is 6, TCP. If
Yes , the rule matches packets that want to establish TCP
connection(s) (SYN=1 and ACK=0); else it is ignored.
No
(default)
More If Yes , a matching packet is passed to the next filter rule
before an action is taken or else the packet is disposed of
according to the action fields.
If More is Yes , then Action Matched and Action Not
Matched will be N/A.
No
(default)
Log Select the logging option from the following:
None – No packets will be logged.
Action Matched – Only packets that match the rule
parameters will be logged.
Action Not Matched – Only packets that do not match
the rule parameters will be logged.
Both – All packets will be logged.
None
Action Matched Select the action for a matching packet. Choices are
Check Next Rule , Forward or Drop .
Check Next Rule
(default)
Action Not Matched Select the action for a packet not matching the rule.
Choices are
Check Next Rule , Forward or Drop .
Check Next Rule
(default)
When you have completed this menu, press [ENTER] at the prompt “Press ENTER to confirm or ESC to
cancel” to save your configuration or press [ESC] to cancel and go back to the previous screen.
The following figure illustrates the logic flow of an IP filter.