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IPSEND(1)							     IPSEND(1)

NAME
       ipsend - sends IP packets

SYNOPSIS
       ipsend [ -dITUv ] [ -i <interface> ] [ -f <offset> ] [ -g <gateway> ] [
       -m <MTU> ] [ -o <option> ] [ -P <protocol> ]  [	-s  <source>  ]	 [  -t
       <dest. port> ] [ -w <window> ] <destination> [TCP-flags]

DESCRIPTION
       ipsend  can be compiled in two ways.  The first is used to send one-off
       packets to a destination host, using command line  options  to  specify
       various	attributes  present  in	 the headers.  The destination must be
       given as the last command line option, except for when  TCP  flags  are
       specified as a combination of A, S, F, U, P and R, last.

       The other way it may be compiled, with DOSOCKET defined, is to allow an
       attempt at making a TCP connection using a with	ipsend	resending  the
       SYN packet as per the command line options.

OPTIONS
       -d     enable debugging mode.

       -f <offset>
	      The  -f allows the IP offset field in the IP header to be set to
	      an arbitrary value, which can be specified in decimal  or	 hexa‐
	      decimal.

       -g <gateway>
	      Specify the hostname of the gateway through which to route pack‐
	      ets.  This is  required  whenever	 the  destination  host	 isn't
	      directly	attached  to  the  same network as the host from which
	      you're sending.

       -i <interface>
	      Set the interface name to be the name supplied.

       -m <MTU>
	      Specify the MTU to be  used  when	 sending  out  packets.	  This
	      option  allows you to set a fake MTU, allowing the simulation of
	      network interfaces with small MTU's without setting them so.

       -o <option>
	      Specify options to be included at the end of the IP header.   An
	      EOL  option is automatically appended and need not be given.  If
	      an option would also have data associated with it (source as  an
	      IP# for a lsrr option), then this will not be initialised.

       -s <source>
	      Set  the	source	address in the packet to that provided - maybe
	      either a hostname or IP#.

       -t <dest.port>
	      Set the destination port for TCP/UDP packets.

       -w <window>
	      Set the window size for TCP packets.

       -I     Set the protocol to ICMP.

       -P <protocol>
	      Set the protocol to the value given.   If	 the  parameter	 is  a
	      name, the name is looked up in the /etc/protocols file.

       -T     Set the protocol to TCP.

       -U     Set the protocol to UDP.

       -v     enable verbose mode.

SEE ALSO
       ipresend(1), iptest(1), bpf(4), protocols(5), ipsend(5)

DIAGNOSTICS
       Needs to be run as root.

BUGS
       If you find any, please send email to me at darrenr@pobox.com

								     IPSEND(1)

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