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3. DSL Card Configuration
3-36
April 2001 8000-A2-GB26-50
IP Filter (IP Filter Configuration screen)
(continued)
(A-G-A)
Filter Name
– Up to 12 characters.
Default Filter Action
– Forward (Packet)/Discard (Packet) (Default = Forward). The
Default Filter Action applies when there is no match or the filter has no rules configured.
DHCP Traffic
– Forward (Packet)/Discard (Packet) (Default = Forward). Forwards or
discards DHCP transaction traffic on a particular DSL port.
Rule No.
– Up to 33 rules can be configured for each filter. The rule number is
automatically assigned. The rules are reviewed sequentially. The most common rules
should be entered first.
Source Address
–
nnn.nnn.nnn.nnn
format. Enter a valid host or network IP address.
If 0.0.0.0 is entered, Source Comparison is ignored.
Source Mask
–
nnn.nnn.nnn.nnn
format. If you specify a source subnet mask of 0.0.0.0,
the system skips the source address comparison.
Source Comparison
– Enabled/Disabled (Default = Disabled). When Source
Comparison is disabled, the comparison is ignored.
Source Port No.
– 0–65535. (Default = 0).
Comparison Type
(for source information) – Ignore – Do not do a comparison. To do a
comparison on the port number specified in the packet and the rule, specify one of the
following: Ignore – Ignore ports, EQ – Equal to, NEQ – Not Equal to, GT – Greater than,
LT – Less than, In_Range – Within the specified range, Out_Range – Outside of the
specified range (Default = Ignore).
Max. Source Port No.
– 0–65535. Appears only when the source comparison type is
In Range or Out of Range.
Destination Address
–
nnn.nnn.nnn.nnn
format.
Destination Mask
–
nnn.nnn.nnn.nnn
format. If you specify a destination subnet mask of
0.0.0.0, the system skips the destination address comparison.
Destination Address Comparison
– Enabled/Disabled (Default = Disabled). When
Destination Address Comparison is disabled, the comparison is ignored.
Destination Port No.
– 0–65535 (Default = null).
Comparison Type
(for destination information) – Ignore – Ignore ports, EQ – Equal to,
NEQ – Not Equal to, GT – Greater than, LT – Less than, In_Range – Within the specified
range, Out_Range – Outside of the specified range.
Max. Destination Port No.
– 0–65535. Appears only when the destination port
comparison type is In Range or Out of Range
Action
– For a rule, TCP,UDP, or ICMP traffic will be forwarded or discarded provided
other conditions have been satisfied.
TCP – Forward/Discard (Default = Forward).
UDP – Forward/Discard (Default = Forward).
ICMP – Forward/Discard/Selective (Default = Forward).
Delete Rule?
– Yes/No (Default = No).
Table 3-6. Filters Options (2 of 3)