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You can filter raw data for any frame type. Or you can filter detailed information from the header
fields if you indicate frame type. When filtering Ethernet II, Ethernet 802.2 or Ethernet SNAP, you
can specify the network protocol (IP, IPX, Unknown), as well as the transport protocol (IP: All, TCP,
UDP, Unknown; or IPX: All, RIP, SAP, Unknown). Also regardless of the frame type, you can choose
to filter all packets or just certain error packets (such as fragments or jabber). Detailed configuration
options for filters are shown in the following table.
Field
Index
An index that uniquely identifies an entry in the filter table.
Channel
The owner who created the corresponding channel entry, and the channel index.
Frame Type
The frame type to filter.
Values: All, Ethernet II, Ethernet 802.2, Ethernet SNAP, Ethernet 802.3 Raw, Unknown
Protocol
The network protocol to filter. This entry is only available if Ethernet II, Ethernet 802.2, or
Ethernet SNAP is the selected frame type.
Values: IP, IPX, Unknown
Upper-Layer Protocol The transport protocol to filter. The options available depend on the selected network protocol.
IP: All, TCP, UDP, Unknown
IPX: All, RIP, SAP, Unknown
Packet Status
The status of packets to filter: Any Packets, No Errors, Any Errors, CRC/Alignment,
Packets < 64 Bytes, Undersize (packets < 64 bytes, with no CRC/alignment errors),
Packets > 1518 Bytes, Oversize (packets >1518 bytes, with no CRC/alignment errors),
Fragments, Jabber, Other
Name
A name for this filter expression, consisting of the selected –
Frame Type / Protocol / Upper-Layer Protocol.
Raw Data
Allows you to enter a specific data pattern to filter. Select Data and input the filter pattern,
select Mask to indicate the relevant bits, then select Not Mask to indicate the bits that should
match or not match. You can check for a pattern anywhere within the first 256 bytes of a frame.
Data: The bit pattern to filter.
Mask: The relevant bits within the data.
Not Mask: Those bits in the mask to match (0) or not match (1).
Decoded Details
If the frame and protocol type are specified, then you can filter specific fields directly from the
frame and protocol headers.
Load/Save As
Loads a predefined filter into the filter table, or saves the current filter as a file.
Description
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RMON
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