Table 91 Menu 21.1.x.1 TCP/IP Filter Rule (continued)
FIELD | DESCRIPTION |
|
|
Port # | Type the destination port of the packets you want to filter. The field range is 0 to |
| 65535. A 0 field is ignored. |
Port # Comp | Select the comparison to apply to the destination port in the packet against the value |
| given in Destination: Port #. Choices are None, Less, Greater, Equal or Not |
| Equal. |
Source: |
|
|
|
IP Addr | Type the source IP Address of the packet you want to filter. A 0.0.0.0 field is ignored. |
|
|
IP Mask | Type the IP mask to apply to the Source: IP Addr field. |
|
|
Port # | Type the source port of the packets you want to filter. The range of this field is 0 to |
| 65535. A 0 field is ignored. |
Port # Comp | Select the comparison to apply to the source port in the packet against the value |
| given in Source: Port # field. Choices are None, Less, Greater, Equal or Not |
| Equal. |
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. |
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. |
|
|
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. |
|
|
Action Matched | Select the action for a matching packet. Choices are Check Next Rule, Forward or |
| Drop. |
Action Not | Select the action for a packet not matching the rule. Choices are Check Next Rule, |
Matched | Forward or Drop. |
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] at any time to cancel.
The following figure illustrates the logic flow of an IP filter.
Chapter 28 Filter Configuration | 254 |