IP-XFRM(8) Linux IP-XFRM(8)
NAME
ip-xfrm - transform configuration
SYNOPSIS
ip [ OPTIONS ] xfrm { COMMAND | help }
ip xfrm XFRM-OBJECT { COMMAND | help }
XFRM-OBJECT := state | policy | monitor
ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ] [ mark MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ] [ replay-window SIZE
] [ replay-seq SEQ ] [ replay-oseq SEQ ] [ flag FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ] [ coa ADDR[/PLEN] ] [
ctx CTX ]
ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]
ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]
ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID ] [ flag FLAG-LIST ]
ip xfrm state flush [ proto XFRM-PROTO ]
ip xfrm state count
ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]
XFRM-PROTO := esp | ah | comp | route2 | hao
ALGO-LIST := [ ALGO-LIST ] ALGO
ALGO := { enc | auth | comp } ALGO-NAME ALGO-KEY |
aead ALGO-NAME ALGO-KEY ALGO-ICV-LEN |
auth-trunc ALGO-NAME ALGO-KEY ALGO-TRUNC-LEN
MODE := transport | tunnel | ro | in_trigger | beet
FLAG-LIST := [ FLAG-LIST ] FLAG
FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec | align4
SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ]
[ UPSPEC ]
UPSPEC := proto { PROTO |
{ tcp | udp | sctp | dccp } [ sport PORT ] [ dport PORT ] |
{ icmp | ipv6-icmp | mobility-header } [ type NUMBER ] [ code NUMBER ] |
gre [ key { DOTTED-QUAD | NUMBER } ] }
LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT
LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |
{ byte-soft | byte-hard } SIZE |
{ packet-soft | packet-hard } COUNT
ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR
ip xfrm policy { add | update } SELECTOR dir DIR [ ctx CTX ] [ mark MARK [ mask MASK ] ] [ index INDEX ] [ ptype PTYPE ] [ action ACTION ]
[ priority PRIORITY ] [ flag FLAG-LIST ] [ LIMIT-LIST ] [ TMPL-LIST ]
ip xfrm policy { delete | get } { SELECTOR | index INDEX } dir DIR [ ctx CTX ] [ mark MARK [ mask MASK ] ] [ ptype PTYPE ]
ip xfrm policy { deleteall | list } [ SELECTOR ] [ dir DIR ] [ index INDEX ] [ ptype PTYPE ] [ action ACTION ] [ priority PRIORITY ]
ip xfrm policy flush [ ptype PTYPE ]
ip xfrm policy count
SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]
UPSPEC := proto { PROTO |
{ tcp | udp | sctp | dccp } [ sport PORT ] [ dport PORT ] |
{ icmp | ipv6-icmp | mobility-header } [ type NUMBER ] [ code NUMBER ] |
gre [ key { DOTTED-QUAD | NUMBER } ] }
DIR := in | out | fwd
PTYPE := main | sub
ACTION := allow | block
FLAG-LIST := [ FLAG-LIST ] FLAG
FLAG := localok | icmp
LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT
LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |
{ byte-soft | byte-hard } SIZE |
{ packet-soft | packet-hard } COUNT
TMPL-LIST := [ TMPL-LIST ] tmpl TMPL
TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]
ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]
XFRM-PROTO := esp | ah | comp | route2 | hao
MODE := transport | tunnel | ro | in_trigger | beet
LEVEL := required | use
ip xfrm monitor [ all | LISTofXFRM-OBJECTS ]
DESCRIPTION
xfrm is an IP framework for transforming packets (such as encrypting their payloads). This framework is used to implement the IPsec proto-
col suite (with the state object operating on the Security Association Database, and the policy object operating on the Security Policy
Database). It is also used for the IP Payload Compression Protocol and features of Mobile IPv6.
ip xfrm state add - add new state into xfrm
ip xfrm state update - update existing state in xfrm
ip xfrm state allocspi - allocate an SPI value
ip xfrm state delete - delete existing state in xfrm
ip xfrm state get - get existing state in xfrm
ip xfrm state deleteall - delete all existing state in xfrm
ip xfrm state list - print out the list of existing state in xfrm
ip xfrm state flush - flush all state in xfrm
ip xfrm state count - count all existing state in xfrm
ID is specified by a source address, destination address, transform protocol XFRM-PROTO, and/or Security Parameter Index SPI.
XFRM-PROTO
specifies a transform protocol: IPsec Encapsulating Security Payload (esp), IPsec Authentication Header (ah), IP Payload Compression
(comp), Mobile IPv6 Type 2 Routing Header (route2), or Mobile IPv6 Home Address Option (hao).
ALGO-LIST
specifies one or more algorithms ALGO to use. Algorithm types include encryption (enc), authentication (auth), authentication with a
specified truncation length (auth-trunc), authenticated encryption with associated data (aead), and compression (comp). For each
algorithm used, the algorithm type, the algorithm name ALGO-NAME, and the key ALGO-KEY must be specified. For aead, the Integrity
Check Value length ALGO-ICV-LEN must additionally be specified. For auth-trunc, the signature truncation length ALGO-TRUNC-LEN must
additionally be specified.
MODE specifies a mode of operation: IPsec transport mode (transport), IPsec tunnel mode (tunnel), Mobile IPv6 route optimization mode
(ro), Mobile IPv6 inbound trigger mode (in_trigger), or IPsec ESP Bound End-to-End Tunnel Mode (beet).
FLAG-LIST
contains one or more of the following optional flags: noecn, decap-dscp, nopmtudisc, wildrecv, icmp, af-unspec, or align4.
SELECTOR
selects the traffic that will be controlled by the policy, based on the source address, the destination address, the network device,
and/or UPSPEC.
UPSPEC selects traffic by protocol. For the tcp, udp, sctp, or dccp protocols, the source and destination port can optionally be specified.
For the icmp, ipv6-icmp, or mobility-header protocols, the type and code numbers can optionally be specified. For the gre protocol,
the key can optionally be specified as a dotted-quad or number. Other protocols can be selected by name or number PROTO.
LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.
ENCAP encapsulates packets with protocol espinudp or espinudp-nonike, using source port SPORT, destination port DPORT , and original
address OADDR.
ip xfrm policy add - add a new policy
ip xfrm policy update - update an existing policy
ip xfrm policy delete - delete an existing policy
ip xfrm policy get - get an existing policy
ip xfrm policy deleteall - delete all existing xfrm policies
ip xfrm policy list - print out the list of xfrm policies
ip xfrm policy flush - flush policies
ip xfrm policy count - count existing policies
SELECTOR
selects the traffic that will be controlled by the policy, based on the source address, the destination address, the network device,
and/or UPSPEC.
UPSPEC selects traffic by protocol. For the tcp, udp, sctp, or dccp protocols, the source and destination port can optionally be specified.
For the icmp, ipv6-icmp, or mobility-header protocols, the type and code numbers can optionally be specified. For the gre protocol,
the key can optionally be specified as a dotted-quad or number. Other protocols can be selected by name or number PROTO.
DIR selects the policy direction as in, out, or fwd.
CTX sets the security context.
PTYPE can be main (default) or sub.
ACTION can be allow (default) or block.
PRIORITY
is a number that defaults to zero.
FLAG-LIST
contains one or both of the following optional flags: local or icmp.
LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.
TMPL-LIST
is a template list specified using ID, MODE, REQID, and/or LEVEL.
ID is specified by a source address, destination address, transform protocol XFRM-PROTO, and/or Security Parameter Index SPI.
XFRM-PROTO
specifies a transform protocol: IPsec Encapsulating Security Payload (esp), IPsec Authentication Header (ah), IP Payload Compression
(comp), Mobile IPv6 Type 2 Routing Header (route2), or Mobile IPv6 Home Address Option (hao).
MODE specifies a mode of operation: IPsec transport mode (transport), IPsec tunnel mode (tunnel), Mobile IPv6 route optimization mode
(ro), Mobile IPv6 inbound trigger mode (in_trigger), or IPsec ESP Bound End-to-End Tunnel Mode (beet).
LEVEL can be required (default) or use.
ip xfrm monitor - state monitoring for xfrm objects
The xfrm objects to monitor can be optionally specified.
AUTHOR
Manpage by David Ward
iproute2 20 Dec 2011 IP-XFRM(8)