12-8CHAPTER 12: CONFIGURING FILTERS

Enable or disable the filter. (You may want to create a disabled filter, then enable it when you are satisfied that the filter conditions are complete.)

Select the protocol for the filter being added. The protocols are: Basic IP, Advanced IP, Basic IPX, Advanced IPX, Basic Bridge, and Advanced Bridge.

Pressing the Next button brings up the condition screen for the selected protocol.

Condition Screens

These screens have a common structure but differ in content. The common features include the condition number (1-6) of the condition being created and, for condition numbers 2-6, the selection via radio buttons for “And”ing and “Or”ing the condition to the previous condition.

For condition number 1, the user is prompted to select the action of the filter: “Discard Packet” or “Forward Packet”. Also common is the Next button, which takes you to the Condition Summary screen.

Basic IP Condition has the following condition sentences to select from:

Table 12–3Basic IP Condition

Destination Address

Is Equal to

_____IP address

Source Address

Is Not Equal to

 

Destination Network

Is Equal to

_____IP address

Source Network

Is Not Equal to

_____(Mask)

Advanced IP Condition has the following condition sentences to select from:

Table 12–4Advanced IP Condition

Destination Address

Is Equal to

____IP address

Source Address

Is Not Equal to

 

Destination Network

Is Equal to

_____IP address

Source Network

Is Not Equal to

_____(Mask)

Protocol Type

Is Equal to

TCP

 

Is Not Equal to

UDP

 

 

ICMP

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3Com 3C840 manual Condition Screens, 3Basic IP Condition