iptunnel

IPTUNNEL(8)                 System Manager's Manual                IPTUNNEL(8)

NAME
       iptunnel - Create and manage IP tunnels

SYNOPSIS
       iptunnel { add | change | del | show } [ NAME ]
         [ mode { ipip | gre | sit } ] [ remote ADDR ] [ local ADDR ]
         [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]
         [ ttl TTL ] [ tos TOS ] [ nopmtudisc ] [ dev PHYS_DEV ]

       iptunnel -V | --version

       Where: NAME := STRING
              ADDR := { IP_ADDRESS | any }
              TOS  := { NUMBER | inherit }
              TTL  := { 1..255 | inherit }
              KEY  := { DOTTED_QUAD | NUMBER }

DESCRIPTION
       iptunnel  can be used to add, change, delete and show IP tunnels on the
       machine.

OPTIONS
       help   Show the help text.

       show   List existing IP tunnels.

       { add | change | del } [ NAME ]
              Specify an action (add, change or delete an IP tunnel) to be ex-
              ecuted  by  iptunnel  on  the tunnel named NAME, which must be a
              string.  You must specify one action.

       mode PROTOCOL
              Specify the PROTOCOL to be used for the IP tunnel.   It  can  be
              ipip  for TCP/IP, gre for Cisco GRE tunnel (RFCs 1701 and 1702),
              or sit for IPv6-in-IPv4 tunneling.

       remote ADDR
              Set the remote (i.e., destination) address of the tunnel.   ADDR
              must be an IP address or the word any.

       local ADDR
              Set  the  local (i.e., source) address of the tunnel.  ADDR must
              be an IP address or the word any.

       iseq   Require that all incoming packets are serialized.  Only applica-
              ble for GRE tunnels.

       oseq   Enable  serialization  (sequencing)  for  all  outgoing packets.
              Only applicable for GRE tunnels.

       ikey KEY
              Specify the input key for the Cisco GRE tunnel.  KEY must be ei-
              ther in dotted quad (dotted decimal) or a number.  Only applica-
              ble for GRE tunnels.

       okey KEY
              Same as ikey, but set the output key instead.   Only  applicable
              for GRE tunnels.

       icsum  Require  that  all  incoming  packets have the correct checksum.
              Only applicable for GRE tunnels.

       ocsum  Calculate checksums for all outgoing packets.   Only  applicable
              for GRE tunnels.

       ttl TTL
              Specify the Time-To-Live value for the IP tunnel.  TTL must be a
              value between 1 and 255, or the word inherit, which  causes  the
              field to be copied from the original IP header.

       tos TOS
              Specify  the  Type-Of-Service value for the IP tunnel.  TOS must
              be a value between 1 and 255, or the word inherit, which  causes
              the field to be copied from the original IP header.

       nopmtudisc
              Disable  Path  MTU  Discovery on this tunnel.  Note that a fixed
              ttl is incompatible with this option.

       dev PHYS_DEV
              Bind the tunnel to the device PHYS_DEV.

HOMEPAGE
       <https://sourceforge.net/projects/net-tools/>

AUTHORS
       This manpage was written by Sergio Durigan Junior <sergiodj  (at)  ser-
       giodj (dot) net>.  A few parts were inspired by ip-tunnel(1)'s manpage.

       Permission  is  granted to copy, distribute and/or modify this document
       under the terms of the GNU General Public License,  Version  2  or  any
       later version published by the Free Software Foundation.

February 2018                    version 1.60                      IPTUNNEL(8)