Ubuntu Manpage: vde_plug - Virtual Distributed Ethernet plug (two plugs creates a vde cable)

Provided by: vde2_2.3.2+r586-2.2build1_amd64

NAME

       vde_plug - Virtual Distributed Ethernet plug (two plugs creates a vde cable)

SYNOPSIS

       vde_plug [ -p portnum ] [ -g group ] [ -m octal-mode ] [ socketdir ]

DESCRIPTION

       A  vde_plug  is  a  plug  to be connected into a VDE switch.  All the data that is catched by the plug is
       written in its stdout and everything from stdin is injected in the switch.

       This tool has been designed to be used together with dpipe (1)  to  interconnect  a  second  vde_plug  to
       another switch, working as a virtual ethernet crossed cable between the two switches.

       The command
              dpipe vde_plug = vde_plug /tmp/vde2.ctl
       connects  two  local  switches:  the  former  is using the standard control socket /tmp/vde.ctl while the
       latter is using /tmp/vde2.ctl.

       The command
              dpipe vde_plug = ssh remote.machine.org vde_plug
       connects two remote switches.  If the two vde_switches run as  daemon  and  they  are  connected  to  tap
       interfaces a level 2 encrypted tunnel is established.

       vde_plug  can  also  be  established  as  a login shell for users.  The following command works as in the
       previous example
              dpipe vde_plug = ssh vdeuser@remote.machine.org vde_plug
       where vdeuser is the user with vde_plug as standard shell.  All the remote accesses are logged by  syslog
       at  the  beginning  and at the end of each session.  Attempt to login without the command vde_plug at the
       end or trying to execute something else are blocked and the attempt is logged into syslog.

OPTIONS

-p portnum
It is possible to decide which port of the switch to use. When this option is not specified the
switch assigns the first available unused port (if any). It is possible to connect several cables
in the same switch port: in this way all this cables work concurrently. It means that packet can
result as duplicate but no ARP table loops are generated. Is useful when vde is used for
mobility. Several physical interfaces can be used at a time during handoffs to prevent hichups in
connectivity.

-g group
group ownership of the communication socket. For security when more want to share a switch it is
better to use a unix group to own the comm sockets so that the network traffic cannot be sniffed.

-m octal-mode
octal chmod like permissions for the comm sockets

socketdir
(This option can be also set as: -sock socketdir ) specify the directory which contains the UNIX
socket to be used by local programs for joining the VDE. The default value is "/tmp/vde.ctl",
which corresponds to the socket "/tmp/vde.ctl/ctl" (or /var/run/vde.ctl when the vde_switch runs
as a shared daemon). It is possible for users to redefine their default switch as
".vde-2/stdsock" in their home directory. If exist, this directory (or symbolic link to the actual
directory) is used as the default value for the user.

NOTICE

       Virtual  Distributed  Ethernet  is  not related in any way with www.vde.com ("Verband der Elektrotechnik,
       Elektronik und Informationstechnik" i.e. the German "Association for Electrical, Electronic & Information
       Technologies").

AUTHOR