NAME

       ipsec_ikeping - send/receive ISAKMP/IKE echo requests/replies

SYNOPSIS

       ipsec ikeping [--listen] [--verbose] [--wait time] [--exchangenum num]
             [--ikeport localport] [--ikeaddress address] [--inet] [--inet6] destaddr
             [/dstport...]

DESCRIPTION

       Ikeping sends and receives ISAKMP/IKE echo request and echo reply packets. These packets
       are intended for diagnostics purposes, in a manner similar to ping(8) does for ICMP echo
       request/reply packets.

       At the time of this writing, the ISAKMP echo request/reply exchange is still an
       internet-draft (draft-richardson-ipsec-ikeping-00), and is therefore completely
       non-standard. The Openswan IKE daemon pluto does implement this draft, so ikeping can be
       used to test connectivity to an openswan ipsec server.

       Ikeping will bind to the local address given by --ikeaddress and the port number given by
       --ikeport defaulting to the wildcard address and the ISAKMP port 500. An ISAKMP exchange
       of type 244 (a private use number) is sent to each of the address/ports listed on the
       command line. The exchange number may be overridden by the --exchangenum option.

       Ikeping then listens for replies, printing them as they are received. Replies are of
       exchange type 245 or the specified exchange number plus 1.  Ikeping will keep listening
       until it either receives as many echo responses as it sent, or until the timeout period (5
       seconds) has been reached. Receipt of a packet will reset the timer. The --wait option can
       be used to specify a different timeout period.

       If the --listen option is given, then ikeping will not send any packets. Instead, it will
       listen for them and reply to each request received.

       If the --natt option is given, then ikeping will set the socket to permit UDP encapsulated
       ESP packets. This is only useful in listen mode.

FILES

       no external files

SEE ALSO

       ping(8), ipsec_pluto(8)

HISTORY

       Written for the Linux FreeS/WAN project <http://www.freeswan.org> by Michael Richardson.

[FIXME: source]                             10/06/2010                           IPSEC_IKEPING(8)