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Full Discussion: what is "unplumb"
Special Forums IP Networking what is "unplumb" Post 302167704 by blowtorch on Friday 15th of February 2008 09:29:17 AM
Old 02-15-2008
From the Solaris man page:

Quote:
plumb Open the device associated with the physical interface
name and set up the streams needed for IP to use the
device. When used with a logical interface name, this
command is used to create a specific named logical
interface. An interface must be separately plumbed for
use by IPv4 and IPv6. The address_family parameter
controls whether the ifconfig command applies to IPv4
or IPv6.
Quote:
unplumb
Close the device associated with this physical inter-
face name and any streams that ifconfig set up for IP
to use the device. When used with a logical interface
name, the logical interface is removed from the sys-
tem. After this command is executed, the device name
will no longer appear in the output of ifconfig -a.
The same would hold true for HP-UX as well (allowing for differences in implementation, and such).
 

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LEARN ABOUT MINIX

inet_type

inet_type(4)							   File Formats 						      inet_type(4)

NAME

       inet_type - default Internet protocol type

SYNOPSIS

       /etc/default/inet_type

DESCRIPTION

       The inet_type file defines the default IP protocol to use. Currently this file is only used by the ifconfig(1M) and netstat(1M) commands.

       The  inet_type  file  can  contain  a  number of <variable>=<value> lines. Currently, the only variable defined is DEFAULT_IP, which can be
       assigned a value of IP_VERSION4, IP_VERSION6, or BOTH.

       The output displayed by the ifconfig and netstat commands can be controlled by the value of DEFAULT_IP set in inet_type file.  By  default,
       both commands display the IPv4 and IPv6 information available on the system. The user can choose to suppress display of IPv6 information by
       setting the value of DEFAULT_IP.  The following shows the possible values for DEFAULT_IP and the resulting ifconfig and netstat output that
       will be displayed:

       IP_VERSION4     Displays only IPv4 related information. The output displayed is backward compatible with older versions of the ifconfig(1M)
		       and netstat(1M) commands.

       IP_VERSION6     Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       BOTH	       Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       The command-line options to the ifconfig and netstat commands override the effect of DEFAULT_IP as set in the inet_type file. For  example,
       even if the value of DEFAULT_IP is IP_VERSION4, the command

       example% ifconfig -a6

       will display all IPv6 interfaces.

EXAMPLES

       Example 1: Suppressing IPv6 Related Output

       This is what the inet_type file must contain if you want to suppress IPv6 related output:

       DEFAULT_IP=IP_VERSION4

SEE ALSO

       ifconfig(1M), netstat(1M)

SunOS 5.10							    16 Jun 1999 						      inet_type(4)
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