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SETKEY(8)		FreeBSD System Manager's Manual 	     SETKEY(8)

     setkey - manually manipulate the IPsec SA/SP database.

     setkey [-dv] -c
     setkey [-dv] -f filename
     setkey [-adPlv] -D
     setkey [-dPv] -F
     setkey [-h] -x

     setkey addes, updates, dumpes, or flushes Security Association Database
     (SAD) entries as well as Security Policy Database (SPD) entries in the

     setkey takes a series of operations from the standard input (if invoked
     with -c) or the file named filename (if invoked with -f filename).

     -D      Dump the SAD entries.  If with -P, the SPD entries are dumped.

     -F      Flush the SAD entries.  If with -P, the SPD entries are flushed.

     -a      setkey usually does not display dead SAD entries with -D. If with
	     -a, the dead SAD entries will be displayed as well.  A dead SAD
	     entry means that it has been expired but remains because it is
	     referenced by SPD entries.

     -d      Enable to print debugging messages for command parser, without
	     talking to kernel.  It is not used usually.

     -x      Loop forever and dump all the messages transmitted to PF_KEY

     -h      Add hexadecimal dump on -x mode.

     -l      Loop forever with short output on -D.

     -v      Be verbose.  PF_KEY socket (including messages sent from other

     Operations have the following grammar. Note that lines starting with
     hashmarks ('#') are treated as comment lines.

     add src dst protocol spi [extensions] algorithm... ;
	     Add an SAD entry.

     get src dst protocol spi ;
	     Show an SAD entry.

     delete src dst protocol spi ;
	     Remove an SAD entry.

     flush [protocol] ;
	     Clear all SAD entries matched by the options.

     dump [protocol] ;
	     Dumps all SAD entries matched by the options.

     spdadd src_range dst_range upperspec policy ;
	     Add an SPD entry.

     spddelete src_range dst_range upperspec -P direction ;
	     Delete an SPD entry.

     spdflush ;
	     Clear all SPD entries.

     spddump ;
	     Dumps all SPD entries.

     Meta-arguments are as follows:
     dst     Source/destination of the secure communication is specified as
	     IPv4/v6 address.  setkey does not consult hostname-to-address for
	     arguments src and dst. They must be in numeric form.

	     protocol is one of following:
	     esp	 ESP based on rfc2405
	     esp-old	 ESP based on rfc1827
	     ah 	 AH based on rfc2402
	     ah-old	 AH based on rfc1826
	     ipcomp	 IPCOMP

     spi     Security Parameter Index (SPI) for the SAD and the SPD.  It must
	     be decimal number or hexadecimal number You can not use the set
	     of SPI values in the range 0 through 255.	(with 0x attached).

	     take some of the following:
	     -m mode	 Specify a security protocol mode for use.  mode is
			 one of following: transport, tunnel or any. The de­
			 fault value is any.
	     -r size	 Specify window size of bytes for replay prevention.
			 size must be decimal number in 32-bit word.  If size
			 is zero or not specified, replay check don't take
	     -u id	 Specify the identifier of policy.  See also
	     -f pad_option
			 pad_option is one of following: zero-pad, random-pad
			 or seq-pad
	     -f nocyclic-seq
			 Don't allow cyclic sequence number.
	     -lh time
	     -ls time	 Specify hard/soft lifetime.

	     -E ealgo key
			 Specify encryption algorithm.
	     -A aalgo key
			 Specify authentication algorithm.  If -A is used for
			 esp, it will be treated as ESP payload authentication
	     -C calgo [-R]
			 Specify compression algorithm.  If -R is not speci­
			 fied with ipcomp line, the kernel will use well-known
			 IPComp CPI (compression parameter index) on IPComp
			 CPI field on packets, and spi field will be ignored.
			 spi field is only for kernel internal use in this
			 case.	If -R is used, the value on spi field will ap­
			 pear on IPComp CPI field on outgoing packets.	spi
			 field needs to be smaller than 0x10000 in this case.

	     esp SAs accept -E and -A. esp-old SAs accept -E only.  ah and ah-
	     old SAs accept -A only.  ipcomp SAs accept -C only.

	     key must be double-quoted character string or series of hexadeci­
	     mal digits.

	     Possible values for ealgo, aalgo and calgo are specified in sepa­
	     rate section.
	     These are selections of the secure communication specified as
	     IPv4/v6 address or IPv4/v6 address range, and it may accompany
	     TCP/UDP port specification.  This takes the following form:


	     prefixlen and port must be decimal number.  The square bracket
	     around port is really necessary.  They are not manpage metachar­

	     setkey does not consult hostname-to-address for arguments src and
	     dst. They must be in numeric form.
	     Upper-layer protocol to be used.  Currently tcp, udp and any can
	     be specified.  any stands for ``any protocol''.

	     NOTE: upperspec does not work against forwarding case at this mo­
	     ment, as it requires extra reassembly at forwarding node (not
	     implemented at this moment).
     policy  policy is the one of following:

	     -P direction discard
	     -P direction none
	     -P direction ipsec protocol/mode/src-dst/level

	     You must specify the direction of its policy as direction. Either
	     out or in are used.  discard means the packet matching indexes
	     will be discarded.  none means that IPsec operation will not take
	     place onto the packet.  ipsec means that IPsec operation will
	     take place onto the packet.  Either ah, esp or ipcomp is to be
	     set as protocol. mode is either transport or tunnel. You must
	     specify the end-points addresses of the SA as src and dst with
	     `-' between these addresses which is used to specify the SA to
	     use.  level is to be one of the following: default, use or
	     require. default means the kernel consults to the system wide de­
	     fault against protocol you specified, e.g.  esp_trans_deflev
	     sysctl variable, when the kernel processes the packet.  use means
	     that the kernel use a SA if it's available, otherwise the kernel
	     keeps normal operation.  require means SA is required whenever
	     the kernel deals with the packet.	Note that ``discard'' and
	     ``none'' are not in the syntax described in ipsec_set_policy(3).
	     There are little differences in the syntax.  See ipsec_set_poli­
	     cy(3) for detail.

     The following list shows the supported algorithms.  protocol and
     algorithm are almost orthogonal.  Followings are the list of authentica­
     tion algorithms that can be used as aalgo in -A aalgo of protocol parame­

	   algorithm	   keylen (bits)   comment
	   hmac-md5	   128		   ah: rfc2403
			   128		   ah-old: rfc2085
	   hmac-sha1	   160		   ah: rfc2404
			   160		   ah-old: 128bit ICV (no document)
	   keyed-md5	   128		   ah: 96bit ICV (no document)
			   128		   ah-old: rfc1828
	   keyed-sha1	   160		   ah: 96bit ICV (no document)
			   160		   ah-old: 128bit ICV (no document)
	   null 	   0 to 2048	   for debugging

     Followings are the list of encryption algorithms that can be used as
     ealgo in -E ealgo of protocol parameter:

	   algorithm	   keylen (bits)   comment
	   des-cbc	   64		   esp-old: rfc1829, esp: rfc2405
	   3des-cbc	   192		   rfc2451
	   simple	   0 to 2048	   rfc2410
	   blowfish-cbc    40 to 448	   rfc2451
	   cast128-cbc	   40 to 128	   rfc2451
	   rc5-cbc	   40 to 2040	   rfc2451
	   des-deriv	   64		   ipsec-ciph-des-derived-01 (expired)
	   3des-deriv	   192		   no document

     Followings are the list of compression algorithms that can be used as
     calgo in -C calgo of protocol parameter:

	   algorithm	   comment
	   deflate	   rfc2394
	   lzs		   rfc2395

     add     3ffe:501:4819::1 3ffe:501:481d::1 esp 123457
		     -E des-cbc "ESP SA!!" ;

     add     3ffe:501:4819::1 3ffe:501:481d::1 ah 123456
		     -A hmac-sha1 "AH SA configuration!" ;

     add esp 0x10001
		     -E des-cbc "ESP with"
		     -A hmac-md5 "authentication!!" ;

     get     3ffe:501:4819::1 3ffe:501:481d::1 ah 123456 ;

     flush ;

     dump esp ;

     spdadd[21][any] any
		     -P out ipsec esp/tunnel/ ;

     The command exits with 0 on success, and non-zero on errors.

     ipsec_set_policy(3),  sysctl(8)

     The setkey command first appeared in WIDE Hydrangea IPv6 protocol stack
     kit.  The command was completely re-designed in June 1998.

KAME				 May 17, 1998				     4


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