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15-12 MAX 6000/3000 Network Configuration Guide
Defining Static Filters
Defining IP filters
Dst Port #=0
TCP Estab=No
The same parameters are also available in the Output Filters subprofile. If you set the
parameters in an input filter, only inbound packets are examined. If you set them in an output
filter, only outbound packets are examined.
Parameter Specifies
Type Type of filter. Valid values are Generic-Filter (the default),
IP-Filter, IPX-Filter, and TOS-Filter. Only the parameters in the
corresponding subprofile will be applicable.
Src Mask A mask to be applied to the Src Adrs value before comparing that
value to the source address of a packet.
Src Adrs An IP address. After applying the Src Mask value, the MAX unit
compares the result to the source address in a packet. For details,
see “Filtering by source or destination address” on page 15-14.
Dst Mask A mask to be applied to the Dst Adrs value before comparing that
value to the destination address of a packet.
Dst Adrs An IP address. After applying the Dst Adrs-Mask value, the MAX
unit compares the result to the source address in a packet.For
details, see “Filtering by source or destination address” on
page 15-14.
Protocol A protocol number. A number of 0 (zero) matches all protocols. If
you specify a nonzero number, the MAX unit compares it to the
Protocol field in each packet. For a list of assigned protocol
numbers, see RFC 1700, Assigned Numbers, by Reynolds, J. and
Postel, J., October 1994.
Src Port Cmp Type of comparison to perform when comparing source port
numbers. With a setting of None (the default), no comparison is
made. You can specify that the filter matches the packet if the
packet’s source port number is Less (less than), Eql (equal to), Gtr
(greater than), or Neq (not equal to) the Src Port # value.
Src Port # A port number to be compared with the source port of a packet.
TCP and UDP port numbers are typically assigned to services. For
more details, see “Filtering by port numbers” on page 15-14.
Dst Port Cmp Type of comparison to perform when comparing destination port
numbers. With a setting of None (the default), no comparison is
made. You can specify that the filter matches the packet if the
packet’s destination port number is Less (less than), Eql (equal to),
Gtr (greater than), or Neq (not equal to) the Dest Port # value.
Dest Port # A port number to be compared with the destination port of a
packet. TCP and UDP port numbers are typically assigned to
services. For more details, see “Filtering by port numbers” on
page 15-14.
TCP Estab Enable/disable application of the filter only to packets in an
established TCP session. Applicable only if the protocol number
has been set to 6 (TCP).