| Port Filters  | ||
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Field  | Description  | 
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Field  | Either TYPE, IP, MAC, or SR (see Field Offset  | 
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description). The origin is the field from which the  | 
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Origin  | 
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offset count starts.  | 
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  | The decimal offset of the portion of the packet to be  | 
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  | examined. If the origin is TYPE, the field offset value is  | 
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  | relative to the end of the Ethernet frame type,  | 
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  | regardless of whether or not the frame type is SNAP  | 
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  | encapsulated. For example, for IP packets, a field  | 
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  | origin of TYPE with a field offset of zero indicates the  | 
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  | start of the IP header.  | 
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Field  | If the origin is IP, then the offset is relative to the end of  | 
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the IP Header (an offset of zero indicates the portion  | 
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Offset  | 
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immediately following the end of the IP Header).  | 
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  | If the origin is MAC, then the offset is relative to the  | 
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  | beginning of the MAC addresses (an offset of zero  | 
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  | indicates the start of the destination MAC address).  | 
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  | If the origin is SR, then the offset is relative to the end  | 
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  | of the MAC header, including the Source Routing (SR)  | 
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  | header, if present.  | 
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  | The two digit hexadecimal value of each of the eight  | 
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  | octets beginning at the origin and offset by the value  | 
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Field  | specified above. The octets must be separated by  | 
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Value  | spaces. This is the value that the filter is using when it  | 
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  | does a comparison for a match, for example a MAC  | 
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  | address.  | 
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  | An eight octet mask applied to the packet’s eight  | 
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Field  | octets before comparing them to the Field Value  | 
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Mask  | specified above. The mask octets must be separated  | 
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  | by spaces. This is a mask of the specified Field Value.  | 
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  | Filter number for this filter. For example, a value of one  | 
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  | indicates that this is the first filter in the Filter Table. If  | 
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Filter  | you use the default index of 1, any other filters you  | 
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have previously defined will be renumbered starting  | 
  | One  | |
Index  | 
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with 2. Although filters are assigned to a port, filter  | 
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  | indexes are not; they are assigned sequentially to all  | 
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  | filters for all ports.  | 
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Fast Network 10 User Guide | Page   |