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)