It generally increments by 1
with each datagram sent. This value is random by
default.
-T TTL The TTL value defines the upper limit on the
number of devices through which the datagram may
pass to reach its destination. The default value is 128.
-V IP protocol number Specify the IP protocol associated
with this packet (RAWIP only). The default value is 255.
This section documents the TCP header command-line
options:
-S src port The port from which our source address is
communicating. This value is random by default.
-D dst port The port on the destination we would like to
communicate on. In inject mode this value is 0 by
default while in trace mode this value is random by
default. You may also specify a range of addresses in
the format: -D 1:1024.
-f Do not fragment this packet.
-F tcp flags There are six TCP header flag bits. They can
be used in combination with one another and are
specified using the following identifiers:
- S : SYN (Synchronization sequence number)
- F : FIN (Sender is finished)
- A : ACK (Acknowledgment number is valid)
- P : PSH (Receiver should push this data to the remote
host)
- U : URG (The urgent pointer is valid)
- R : RST (Reset this connection)
As an example, to set the SYN and FIN bits use the
following: -F SF
-q sequence number The sequence number is a 32-bit
unsigned (positive) number used to identify the byte
in a stream of data from the sending TCP to the
receiving TCP that the first byte of data represents.
Pages:
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276