The SAP Global Filter Table window displays the following parameters:
Type — Defines whether the current filter entry works on traffic coming into or out of the device.
Network Address — Type in the network pattern to affect the filter entry. The network pattern works in conjunction with the network mask to define the filter entry.
Network Mask — Type in the letters F, 8, C, E, and 0 as many times as desired to indicate which part of the network pattern is important. The mask must be continuous from left to right. 00000000 means all addresses, ffffffff means one address (no address range). A combination of f 0 indicates a specific range. This combination must have f on the left side, 0 on the right side, and a single F, 8, C, or E, or 0 between them.
For example, if the network pattern is set to 12345678, the network mask can be set to ffff0000 to indicate that only the first four numbers of the network pattern are only checked, and the remaining numbers are irrelevant. In this example, only SAP messages with the numbers 1234 as their first four digits are affected.
Service Type — Type in the type of server (in hex) the filter entry affects, such as file server or print server. Value 0xFFFF applies for all types of service and is the default.
Service Name — Type in the server name the filter entry affects. An asterisk (*) at the end of the name as a wild card, designates any number of characters.
For example, * indicates any server name, and sh* indicates any server name starting with sh. The name may be up to 47 characters.
Action — Defines whether the indicated packets are to be forwarded (permit) or blocked (denied) when the current filter entry conditions are met. This parameter is used to fine-tune other filter entries.
For example, a filter entry can be set to block all SAP messages with a network pattern starting with 123, and set another filter entry to permit all SAP messages with a network pattern starting with 1234. All SAP messages with a network pattern starting with 123 that do not have 4 as the fourth digit are blocked.
The default is forward, but the default can be set by creating a general filter entry with the network mask 00000000, and setting it to permit or deny.
To add a SAP Global Filter:
Click . The SAP Global Filter Insert window is displayed.
Complete the table entry fields and click . The SAP Global Filter window is displayed.
Click . When the Status field displays “Finished!”, the entry is confirmed as created.
To edit a SAP Global Filter:
Click . The SAP Global Filter Edit window is displayed.
Edit the required table entry fields and click . The SAP Global Filter window is displayed.
Click . When the Status field displays “Finished!”, the fields are confirmed as modified.
To delete a SAP Global Filter:
Select the entry to delete.
Click .
Click . When the Status field displays “Finished!”, the entry is confirmed as deleted.