TW-H6W1IR ISDN Remote Router
Configuration and Management 69
?? Direction – this defines the direction of the frame relative to the
Interface parameter below.
?? State – this is used to choose the routing decision applied to the
frame. The three decisions are described:
1. forward – this allows the routing of the frame, if it has met the
criteria of the corresponding filter.
2. drop – this drops (doesn’t allow routing for) a specific frame
that has met the criteria of the corresponding filter.
3. disable – this does not apply the protocol independent filter.
?? Interface – this applies the filter to a specific interface, either LAN
or one of the ISDN interfaces.
?? Offset – this defines the reference byte for the Length parameter
(described below). The Offset is the number of bytes (octets) from
the beginning of the first byte of the frame header, immediately after
the preamble. The range of the offset parameter is from 0 to 255
octets. The first byte in a packet has an offset 0.
?? Length – this is the number of bytes (octets) from 0 to 8 to
compare from the offset value (the Offset reference byte).
?? Value – this is a 16 digit, hexadecimal field, defining the actual bit
values used to compare with the frame data, at the specified
(Offset) position.
?? Mask – this is a 16 digit, hexadecimal bit mask, used as an
operand in the bit-wise AND operation that will be applied to the
Value parameter.
