Carrier Access 770-0015 AM - Manual (Page 78)

4-22 IP Router - Release 1.8
Profile Directory: Local Profile
Filters
Defining Custom Filters
This screen defines filters that “search” for a matching string of characters within a
packet. The defined character string can consist of up to 32 bits. The user must specify:
Custom Name - Filter name can be up to 7 characters.
Packet Offset - designates where in the packet to begin looking for a matching
character string. Range is 0 to 60 bytes.
32-Bit Mask - indicates which bits are to be searched for a possible match.Within the
mask, a 1 turns a bit ON, 0 is OFF. Only the bits that are turned on (set to 1) will be
searched for the match.
32-Bit Match - specifies the character string that the system is searching for. When a
match is located, the packet adheres to the Forward Mode field value.
To enable a filter return to the Enabled Filter Window ([E SC ] from this window) and
press [C TRL A], select filter type (Custom, Protocol or Address) filter will be added to
the Enabled Filters window.
NOTE: Each filter, even if it is not enabled, will count toward the maximum
number of 500 filters.
Custom
Filter
Window