Provided by: openswan_2.6.37-1_amd64 bug

NAME

       ipsec_eroute - list of existing eroutes

SYNOPSIS

       ipsec eroute
             cat/proc/net/ipsec_eroute

OBSOLETE

       Note that eroute is only supported on the classic KLIPS stack. It is not supported on any
       other stack and will be completely removed in future versions. On the mast stack, use
       ipsec policy, on the netkey stack, use ip xfrm

DESCRIPTION

       /proc/net/ipsec_eroute lists the IPSEC extended routing tables, which control what (if
       any) processing is applied to non-encrypted packets arriving for IPSEC processing and
       forwarding. At this point it is a read-only file.

       A table entry consists of:

       +
           packet count,

       +
           source address with mask and source port (0 if all ports or not applicable)

       +
           a ´->´ separator for visual and automated parsing between src and dst

       +
           destination address with mask and destination port (0 if all ports or not applicable)

       +
           a ´=>´ separator for visual and automated parsing between selection criteria and SAID
           to use

       +
           SAID (Security Association IDentifier), comprised of:

       +
           protocol (proto),

       +
           address family (af), where ´.´ stands for IPv4 and ´:´ for IPv6

       +
           Security Parameters Index (SPI),

       +
           effective destination (edst), where the packet should be forwarded after processing
           (normally the other security gateway) together indicate which Security Association
           should be used to process the packet,

       +
           a ´:´ separating the SAID from the transport protocol (0 if all protocols)

       +
           source identity text string with no whitespace, in parens,

       +
           destination identity text string with no whitespace, in parens

       Addresses are written as IPv4 dotted quads or IPv6 coloned hex, protocol is one of "ah",
       "esp", "comp" or "tun" and SPIs are prefixed hexadecimal numbers where the prefix ´.´ is
       for IPv4 and the prefix ´:´ is for IPv6

       SAIDs are written as "protoafSPI@edst". There are also 5 "magic" SAIDs which have special
       meaning:

       +
           %drop means that matches are to be dropped

       +
           %reject means that matches are to be dropped and an ICMP returned, if possible to
           inform

       +
           %trap means that matches are to trigger an ACQUIRE message to the Key Management
           daemon(s) and a hold eroute will be put in place to prevent subsequent packets also
           triggering ACQUIRE messages.

       +
           %hold means that matches are to stored until the eroute is replaced or until that
           eroute gets reaped

       +
           %pass means that matches are to allowed to pass without IPSEC processing

EXAMPLES

       1867 172.31.252.0/24:0 -> 0.0.0.0/0:0 => tun0x130@192.168.43.1:0

        () ()

       means that 1,867 packets have been sent to an eroute that has been set up to protect
       traffic between the subnet 172.31.252.0 with a subnet mask of 24 bits and the default
       address/mask represented by an address of 0.0.0.0 with a subnet mask of 0 bits using the
       local machine as a security gateway on this end of the tunnel and the machine 192.168.43.1
       on the other end of the tunnel with a Security Association IDentifier of
       tun0x130@192.168.43.1 which means that it is a tunnel mode connection (4, IPPROTO_IPIP)
       with a Security Parameters Index of 130 in hexadecimal with no identies defined for either
       end.

       746 192.168.2.110/32:0 -> 192.168.2.120/32:25 => esp0x130@192.168.2.120:6

        () ()

       means that 746 packets have been sent to an eroute that has been set up to protect traffic
       sent from any port on the host 192.168.2.110 to the SMTP (TCP, port 25) port on the host
       192.168.2.120 with a Security Association IDentifier of tun0x130@192.168.2.120 which means
       that it is a transport mode connection with a Security Parameters Index of 130 in
       hexadecimal with no identies defined for either end.

       125 3049:1::/64 -> 0:0/0 => tun:130@3058:4::5 () ()

       means that 125 packets have been sent to an eroute that has been set up to protect traffic
       between the subnet 3049:1:: with a subnet mask of 64 bits and the default address/mask
       represented by an address of 0:0 with a subnet mask of 0 bits using the local machine as a
       security gateway on this end of the tunnel and the machine 3058:4::5 on the other end of
       the tunnel with a Security Association IDentifier of tun:130@3058:4::5 which means that it
       is a tunnel mode connection with a Security Parameters Index of 130 in hexadecimal with no
       identies defined for either end.

       42 192.168.6.0/24:0 -> 192.168.7.0/24:0 => %passthrough

       means that 42 packets have been sent to an eroute that has been set up to pass the traffic
       from the subnet 192.168.6.0 with a subnet mask of 24 bits and to subnet 192.168.7.0 with a
       subnet mask of 24 bits without any IPSEC processing with no identies defined for either
       end.

       2112 192.168.8.55/32:0 -> 192.168.9.47/24:0 => %hold (east) ()

       means that 2112 packets have been sent to an eroute that has been set up to hold the
       traffic from the host 192.168.8.55 and to host 192.168.9.47 until a key exchange from a
       Key Management daemon succeeds and puts in an SA or fails and puts in a pass or drop
       eroute depending on the default configuration with the local client defined as "east" and
       no identy defined for the remote end.

       2001 192.168.2.110/32:0 -> 192.168.2.120/32:0 =>

        esp0xe6de@192.168.2.120:0 () ()

       means that 2001 packets have been sent to an eroute that has been set up to protect
       traffic between the host 192.168.2.110 and the host 192.168.2.120 using 192.168.2.110 as a
       security gateway on this end of the connection and the machine 192.168.2.120 on the other
       end of the connection with a Security Association IDentifier of esp0xe6de@192.168.2.120
       which means that it is a transport mode connection with a Security Parameters Index of
       e6de in hexadecimal using Encapsuation Security Payload protocol (50, IPPROTO_ESP) with no
       identies defined for either end.

       1984 3049:1::110/128 -> 3049:1::120/128 =>

        ah:f5ed@3049:1::120 () ()

       means that 1984 packets have been sent to an eroute that has been set up to authenticate
       traffic between the host 3049:1::110 and the host 3049:1::120 using 3049:1::110 as a
       security gateway on this end of the connection and the machine 3049:1::120 on the other
       end of the connection with a Security Association IDentifier of ah:f5ed@3049:1::120 which
       means that it is a transport mode connection with a Security Parameters Index of f5ed in
       hexadecimal using Authentication Header protocol (51, IPPROTO_AH) with no identies defined
       for either end.

FILES

       /proc/net/ipsec_eroute, /usr/local/bin/ipsec

SEE ALSO

       ipsec(8), ipsec_manual(8), ipsec_tncfg(5), ipsec_spi(5), ipsec_spigrp(5),
       ipsec_klipsdebug(5), ipsec_eroute(8), ipsec_version(5), ipsec_pf_key(5)

HISTORY

       Written for the Linux FreeS/WAN project <http://www.freeswan.org/> by Richard Guy Briggs.

[FIXME: source]                             10/06/2010                            IPSEC_EROUTE(5)