User manual

ADSL Bridge/Router User's Manual
70
Field Description
TCP Flag Specifies whether the rule should apply
only to TCP packets that contain the
synchronous (SYN) flag, only to those
that contain the non-synchronous
(NOT-SYN) flag, or to all TCP packets.
This field will be dimmed (unavailable
for entry) unless you selected TCP as
the protocol.
ICMP Type Specifies whether the value in the type
field in ICMP packet headers will be
used as a criteria. The code value can
be any decimal value from 0-255. You
can specify that the value must equal
(eq) or not equal (neq) the specified
value, or you can select any to enable
the rule to be invoked on all ICMP
packets. This field will be dimmed
(unavailable for entry) unless you
specify ICMP as the protocol.
ICMP Code Specifies whether the value in the code
field in ICMP packet headers will be
used as a criteria. The code value can
be any decimal value from 0-255. You
can specify that the value must equal
(eq) or not equal (neq) the specified
value, or you can select any to enable
the rule to be invoked on all ICMP
packets. This field will be dimmed
(unavailable for entry) unless you
specify ICMP as the protocol.
IP Frag Pkt Determines how the rule applies to IP
packets that contain fragments. You
can choose from the following options:
o
Yes
: The rule will be applied only
to packets that contain fragments.
o No: The rule will be applied only to
packets that do not contain
fragments.
o Ignore: (Default) The rule will be
applied to packets whether or not
they contain fragments, assuming
that they match the other criteria.