.TH IP\-XFRM 8 "20 Dec 2011" "iproute2" "Linux"
.SH "NAME"
ip-xfrm \- transform configuration
.SH "SYNOPSIS"
.sp
.ad l
.in +8
.ti -8
.B ip
.RI "[ " OPTIONS " ]"
.B xfrm
.RI " { " COMMAND " | "
.BR help " }"
.sp

.ti -8
.B "ip xfrm"
.IR XFRM-OBJECT " { " COMMAND " | "
.BR help " }"
.sp

.ti -8
.IR XFRM-OBJECT " :="
.BR state " | " policy " | " monitor
.sp

.ti -8
.BR "ip xfrm state" " { " add " | " update " } "
.IR ID " [ " ALGO-LIST " ]"
.RB "[ " mode
.IR MODE " ]"
.RB "[ " mark
.I MARK
.RB "[ " mask
.IR MASK " ] ]"
.RB "[ " reqid
.IR REQID " ]"
.RB "[ " seq
.IR SEQ " ]"
.RB "[ " replay-window
.IR SIZE " ]"
.RB "[ " replay-seq
.IR SEQ " ]"
.RB "[ " replay-oseq
.IR SEQ " ]"
.RB "[ " flag
.IR FLAG-LIST " ]"
.RB "[ " sel
.IR SELECTOR " ] [ " LIMIT-LIST " ]"
.RB "[ " encap
.IR ENCAP " ]"
.RB "[ " coa
.IR ADDR "[/" PLEN "] ]"
.RB "[ " ctx
.IR CTX " ]"

.ti -8
.B "ip xfrm state allocspi"
.I ID
.RB "[ " mode
.IR MODE " ]"
.RB "[ " mark
.I MARK
.RB "[ " mask
.IR MASK " ] ]"
.RB "[ " reqid
.IR REQID " ]"
.RB "[ " seq
.IR SEQ " ]"
.RB "[ " min
.I SPI
.B max
.IR SPI " ]"

.ti -8
.BR "ip xfrm state" " { " delete " | " get " } "
.I ID
.RB "[ " mark
.I MARK
.RB "[ " mask
.IR MASK " ] ]"

.ti -8
.BR "ip xfrm state" " { " deleteall " | " list " } ["
.IR ID " ]"
.RB "[ " mode
.IR MODE " ]"
.RB "[ " reqid
.IR REQID " ]"
.RB "[ " flag
.IR FLAG-LIST " ]"

.ti -8
.BR "ip xfrm state flush" " [ " proto
.IR XFRM-PROTO " ]"

.ti -8
.BR "ip xfrm state count"

.ti -8
.IR ID " :="
.RB "[ " src
.IR ADDR " ]"
.RB "[ " dst
.IR ADDR " ]"
.RB "[ " proto
.IR XFRM-PROTO " ]"
.RB "[ " spi
.IR SPI " ]"

.ti -8
.IR XFRM-PROTO " :="
.BR esp " | " ah " | " comp " | " route2 " | " hao

.ti -8
.IR ALGO-LIST " := [ " ALGO-LIST " ] " ALGO

.ti -8
.IR ALGO " :="
.RB "{ " enc " | " auth " } " 
.IR ALGO-NAME " " ALGO-KEY " |"
.br
.B auth-trunc
.IR ALGO-NAME " " ALGO-KEY " " ALGO-TRUNC-LEN " |"
.br
.B aead
.IR ALGO-NAME " " ALGO-KEY " " ALGO-ICV-LEN " |"
.br
.B comp
.IR ALGO-NAME

.ti -8
.IR MODE " := "
.BR transport " | " tunnel " | " ro " | " in_trigger " | " beet

.ti -8
.IR FLAG-LIST " := [ " FLAG-LIST " ] " FLAG

.ti -8
.IR FLAG " :="
.BR noecn " | " decap-dscp " | " nopmtudisc " | " wildrecv " | " icmp " | " af-unspec " | " align4

.ti -8
.IR SELECTOR " :="
.RB "[ " src
.IR ADDR "[/" PLEN "] ]"
.RB "[ " dst
.IR ADDR "[/" PLEN "] ]"
.RB "[ " dev
.IR DEV " ]"
.br
.RI "[ " UPSPEC " ]"

.ti -8
.IR UPSPEC " := "
.BR proto " {"
.IR PROTO " |"
.br
.RB "{ " tcp " | " udp " | " sctp " | " dccp " } [ " sport
.IR PORT " ]"
.RB "[ " dport
.IR PORT " ] |"
.br
.RB "{ " icmp " | " ipv6-icmp " | " mobility-header " } [ " type
.IR NUMBER " ]"
.RB "[ " code
.IR NUMBER " ] |"
.br
.BR gre " [ " key
.RI "{ " DOTTED-QUAD " | " NUMBER " } ] }"

.ti -8
.IR LIMIT-LIST " := [ " LIMIT-LIST " ]"
.B limit
.I LIMIT

.ti -8
.IR LIMIT " :="
.RB "{ " time-soft " | " time-hard " | " time-use-soft " | " time-use-hard " }"
.IR "SECONDS" " |"
.br
.RB "{ " byte-soft " | " byte-hard " }"
.IR SIZE " |"
.br
.RB "{ " packet-soft " | " packet-hard " }"
.I COUNT

.ti -8
.IR ENCAP " :="
.RB "{ " espinudp " | " espinudp-nonike " }"
.IR SPORT " " DPORT " " OADDR

.ti -8
.BR "ip xfrm policy" " { " add " | " update " }"
.I SELECTOR
.B dir
.I DIR
.RB "[ " ctx
.IR CTX " ]"
.RB "[ " mark
.I MARK
.RB "[ " mask
.IR MASK " ] ]"
.RB "[ " index
.IR INDEX " ]"
.RB "[ " ptype
.IR PTYPE " ]"
.RB "[ " action
.IR ACTION " ]"
.RB "[ " priority
.IR PRIORITY " ]"
.RB "[ " flag
.IR FLAG-LIST " ]"
.RI "[ " LIMIT-LIST " ] [ " TMPL-LIST " ]"

.ti -8
.BR "ip xfrm policy" " { " delete " | " get " }"
.RI "{ " SELECTOR " | "
.B index
.IR INDEX " }"
.B dir
.I DIR
.RB "[ " ctx
.IR CTX " ]"
.RB "[ " mark
.I MARK
.RB "[ " mask
.IR MASK " ] ]"
.RB "[ " ptype
.IR PTYPE " ]"

.ti -8
.BR "ip xfrm policy" " { " deleteall " | " list " }"
.RI "[ " SELECTOR " ]"
.RB "[ " dir
.IR DIR " ]"
.RB "[ " index
.IR INDEX " ]"
.RB "[ " ptype
.IR PTYPE " ]"
.RB "[ " action
.IR ACTION " ]"
.RB "[ " priority
.IR PRIORITY " ]"

.ti -8
.B "ip xfrm policy flush"
.RB "[ " ptype
.IR PTYPE " ]"

.ti -8
.B "ip xfrm policy count"

.ti -8
.IR SELECTOR " :="
.RB "[ " src
.IR ADDR "[/" PLEN "] ]"
.RB "[ " dst
.IR ADDR "[/" PLEN "] ]"
.RB "[ " dev
.IR DEV " ]"
.RI "[ " UPSPEC " ]"

.ti -8
.IR UPSPEC " := "
.BR proto " {"
.IR PROTO " |"
.br
.RB "{ " tcp " | " udp " | " sctp " | " dccp " } [ " sport
.IR PORT " ]"
.RB "[ " dport
.IR PORT " ] |"
.br
.RB "{ " icmp " | " ipv6-icmp " | " mobility-header " } [ " type
.IR NUMBER " ]"
.RB "[ " code
.IR NUMBER " ] |"
.br
.BR gre " [ " key
.RI "{ " DOTTED-QUAD " | " NUMBER " } ] }"

.ti -8
.IR DIR " := "
.BR in " | " out " | " fwd

.ti -8
.IR PTYPE " := "
.BR main " | " sub

.ti -8
.IR ACTION " := "
.BR allow " | " block

.ti -8
.IR FLAG-LIST " := [ " FLAG-LIST " ] " FLAG

.ti -8
.IR FLAG " :="
.BR localok " | " icmp

.ti -8
.IR LIMIT-LIST " := [ " LIMIT-LIST " ]"
.B limit
.I LIMIT

.ti -8
.IR LIMIT " :="
.RB "{ " time-soft " | " time-hard " | " time-use-soft " | " time-use-hard " }"
.IR "SECONDS" " |"
.br
.RB "{ " byte-soft " | " byte-hard " }"
.IR SIZE " |"
.br
.RB "{ " packet-soft " | " packet-hard " }"
.I COUNT

.ti -8
.IR TMPL-LIST " := [ " TMPL-LIST " ]"
.B tmpl
.I TMPL

.ti -8
.IR TMPL " := " ID
.RB "[ " mode
.IR MODE " ]"
.RB "[ " reqid
.IR REQID " ]"
.RB "[ " level
.IR LEVEL " ]"

.ti -8
.IR ID " :="
.RB "[ " src
.IR ADDR " ]"
.RB "[ " dst
.IR ADDR " ]"
.RB "[ " proto
.IR XFRM-PROTO " ]"
.RB "[ " spi
.IR SPI " ]"

.ti -8
.IR XFRM-PROTO " :="
.BR esp " | " ah " | " comp " | " route2 " | " hao

.ti -8
.IR MODE " := "
.BR transport " | " tunnel " | " ro " | " in_trigger " | " beet

.ti -8
.IR LEVEL " :="
.BR required " | " use

.ti -8
.BR "ip xfrm monitor" " [ " all " |"
.IR LISTofXFRM-OBJECTS " ]"

.in -8
.ad b

.SH DESCRIPTION

xfrm is an IP framework for transforming packets (such as encrypting
their payloads). This framework is used to implement the IPsec protocol
suite (with the
.B state
object operating on the Security Association Database, and the
.B policy
object operating on the Security Policy Database). It is also used for
the IP Payload Compression Protocol and features of Mobile IPv6.

.SS ip xfrm state add - add new state into xfrm

.SS ip xfrm state update - update existing state in xfrm

.SS ip xfrm state allocspi - allocate an SPI value

.SS ip xfrm state delete - delete existing state in xfrm

.SS ip xfrm state get - get existing state in xfrm

.SS ip xfrm state deleteall - delete all existing state in xfrm

.SS ip xfrm state list - print out the list of existing state in xfrm

.SS ip xfrm state flush - flush all state in xfrm

.SS ip xfrm state count - count all existing state in xfrm

.TP
.IR ID
is specified by a source address, destination address,
.RI "transform protocol " XFRM-PROTO ","
and/or Security Parameter Index
.IR SPI "."

.TP
.I XFRM-PROTO
specifies a transform protocol:
.RB "IPsec Encapsulating Security Payload (" esp "),"
.RB "IPsec Authentication Header (" ah "),"
.RB "IP Payload Compression (" comp "),"
.RB "Mobile IPv6 Type 2 Routing Header (" route2 "), or"
.RB "Mobile IPv6 Home Address Option (" hao ")."

.TP
.I ALGO-LIST
specifies one or more algorithms
.IR ALGO
to use. Algorithm types include
.RB "encryption (" enc "),"
.RB "authentication (" auth "),"
.RB "authentication with a specified truncation length (" auth-trunc "),"
.RB "authenticated encryption with associated data (" aead "), and"
.RB "compression (" comp ")."
For each algorithm used, the algorithm type, the algorithm name
.IR ALGO-NAME ","
and the key
.I ALGO-KEY
must be specified. For
.BR aead ","
the Integrity Check Value length
.I ALGO-ICV-LEN
must additionally be specified.
For
.BR auth-trunc ","
the signature truncation length
.I ALGO-TRUNC-LEN
must additionally be specified.

.TP
.I MODE
specifies a mode of operation:
.RB "IPsec transport mode (" transport "), "
.RB "IPsec tunnel mode (" tunnel "), "
.RB "Mobile IPv6 route optimization mode (" ro "), "
.RB "Mobile IPv6 inbound trigger mode (" in_trigger "), or "
.RB "IPsec ESP Bound End-to-End Tunnel Mode (" beet ")."

.TP
.I FLAG-LIST
contains one or more of the following optional flags:
.BR noecn ", " decap-dscp ", " nopmtudisc ", " wildrecv ", " icmp ", "
.BR af-unspec ", or " align4 "."

.TP
.IR SELECTOR
selects the traffic that will be controlled by the policy, based on the source
address, the destination address, the network device, and/or
.IR UPSPEC "."

.TP
.IR UPSPEC
selects traffic by protocol. For the
.BR tcp ", " udp ", " sctp ", or " dccp
protocols, the source and destination port can optionally be specified.
For the
.BR icmp ", " ipv6-icmp ", or " mobility-header
protocols, the type and code numbers can optionally be specified.
For the
.B gre
protocol, the key can optionally be specified as a dotted-quad or number.
Other protocols can be selected by name or number
.IR PROTO "."

.TP
.I LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.

.TP
.I ENCAP
encapsulates packets with protocol
.BR espinudp " or " espinudp-nonike ","
.RI "using source port " SPORT ", destination port "  DPORT
.RI ", and original address " OADDR "."

.SS ip xfrm policy add - add a new policy

.SS ip xfrm policy update - update an existing policy

.SS ip xfrm policy delete - delete an existing policy

.SS ip xfrm policy get - get an existing policy

.SS ip xfrm policy deleteall - delete all existing xfrm policies

.SS ip xfrm policy list - print out the list of xfrm policies

.SS ip xfrm policy flush - flush policies

.SS ip xfrm policy count - count existing policies

.TP
.IR SELECTOR
selects the traffic that will be controlled by the policy, based on the source
address, the destination address, the network device, and/or
.IR UPSPEC "."

.TP
.IR UPSPEC
selects traffic by protocol. For the
.BR tcp ", " udp ", " sctp ", or " dccp
protocols, the source and destination port can optionally be specified.
For the
.BR icmp ", " ipv6-icmp ", or " mobility-header
protocols, the type and code numbers can optionally be specified.
For the
.B gre
protocol, the key can optionally be specified as a dotted-quad or number.
Other protocols can be selected by name or number
.IR PROTO "."

.TP
.I DIR
selects the policy direction as
.BR in ", " out ", or " fwd "."

.TP
.I CTX
sets the security context.

.TP
.I PTYPE
can be
.BR main " (default) or " sub "."

.TP
.I ACTION
can be
.BR allow " (default) or " block "."

.TP
.I PRIORITY
is a number that defaults to zero.

.TP
.I FLAG-LIST
contains one or both of the following optional flags:
.BR local " or " icmp "."

.TP
.I LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.

.TP
.I TMPL-LIST
is a template list specified using
.IR ID ", " MODE ", " REQID ", and/or " LEVEL ". "

.TP
.IR ID
is specified by a source address, destination address,
.RI "transform protocol " XFRM-PROTO ","
and/or Security Parameter Index
.IR SPI "."

.TP
.I XFRM-PROTO
specifies a transform protocol:
.RB "IPsec Encapsulating Security Payload (" esp "),"
.RB "IPsec Authentication Header (" ah "),"
.RB "IP Payload Compression (" comp "),"
.RB "Mobile IPv6 Type 2 Routing Header (" route2 "), or"
.RB "Mobile IPv6 Home Address Option (" hao ")."

.TP
.I MODE
specifies a mode of operation:
.RB "IPsec transport mode (" transport "), "
.RB "IPsec tunnel mode (" tunnel "), "
.RB "Mobile IPv6 route optimization mode (" ro "), "
.RB "Mobile IPv6 inbound trigger mode (" in_trigger "), or "
.RB "IPsec ESP Bound End-to-End Tunnel Mode (" beet ")."

.TP
.I LEVEL
can be
.BR required " (default) or " use "."

.SS ip xfrm monitor - state monitoring for xfrm objects
The xfrm objects to monitor can be optionally specified.

.SH AUTHOR
Manpage by David Ward