Provided by: uml-utilities_20070815-1_i386 bug


       tunctl — create and manage persistent TUN/TAP interfaces


       tunctl [-f tun-clone-device]  [-u owner]  [-t device-name]

       tunctl [-f tun-clone-device]  -d device-name


       This manual page documents briefly the tunctl command.

       This  manual  page  was  written  for the Debian GNU/Linux distribution
       because the original program does not have a manual page.  Instead,  it
       has documentation in HTML format; see below.

       tunctl  allows  the  host sysadmin to preconfigure a TUN/TAP device for
       use by a particular user.  That user may open and use the  device,  but
       may not change any aspects of the host side of the interface.


       To  create  an  interface  for  use by a particular user, invoke tunctl
       without the -d option:

       tunctl -u someuser
       Set ’tap0’ persistent and owned by ’someuser’

       Then, configure the interface as normal:

       ifconfig tap0 up
       route add -host dev tap0
       bash -cecho 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp’
       arp -Ds eth0 pub

       To delete the interface, use the -d option:

       tunctl -d tap0
       Set ’tap0’ nonpersistent


       The    UserModeLinux-HOWTO    (link    to     URL     http://user-mode-


       tunctl was written by Jeff Dike

       This  manual  page was written by Matt Zimmerman for the
       Debian GNU/Linux system, based on examples from Jeff Dike.