NAME

        tunctl — create and manage persistent TUN/TAP interfaces
 

SYNOPSIS

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

DESCRIPTION

        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.
 

USAGE

        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 192.168.0.254 up
        #
        route add -host 192.168.0.253 dev tap0
        #
        bash -c      echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp     
        #
        arp -Ds 192.168.0.253 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-linux.source‐
        forge.net/UserModeLinux-HOWTO.html)
 

AUTHOR

        tunctl was written by Jeff Dike jdike@karaya.com
 
        This  manual  page was written by Matt Zimmerman mdz@debian.org for the
        Debian GNU/Linux system, based on examples from Jeff Dike.
 
                                                                      TUNCTL(8)