mirror of
https://github.com/CumulusNetworks/ifupdown2.git
synced 2024-05-06 15:54:50 +00:00
d486dd0df0
This is a major update coming all at once from master-next branch
master-next branch was started with --orphan option which is basically a new
branch without history.
The major changes are:
- repackaging
- cleanup the directory tree
- rewritte setup.py to allow install from deb file or pypi (pip install)
- add a Makefile to make things (like building a deb) easier
- review all debian files
Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
156 lines
5.1 KiB
ReStructuredText
156 lines
5.1 KiB
ReStructuredText
==========
|
|
interfaces
|
|
==========
|
|
|
|
--------------------------------------------
|
|
network interface configuration for ifupdown
|
|
--------------------------------------------
|
|
|
|
:Author: Roopa Prabhu <roopa@cumulusnetworks.com>
|
|
:Date: 2014-02-05
|
|
:Copyright: Copyright 2014 Cumulus Networks, Inc. All rights reserved.
|
|
:Version: 0.1
|
|
:Manual section: 5
|
|
|
|
DESCRIPTION
|
|
===========
|
|
By default, ifupdown2.conf sets **/etc/network/interfaces** as the
|
|
network interface configuration file. This file contains information
|
|
for the **ifup(8)**, **ifdown(8)** and **ifquery(8)** commands.
|
|
|
|
This is where you configure how your system is connected to the network.
|
|
|
|
Lines starting with # are ignored. Note that end-of-line comments are
|
|
NOT supported, comments must be on a line of their own.
|
|
|
|
A line may be extended across multiple lines by making the last character
|
|
a backslash.
|
|
|
|
The file consists of zero or more "iface", "auto", "allow-"
|
|
and "source" stanzas. Here is an example::
|
|
|
|
auto lo eth0
|
|
allow-hotplug eth1
|
|
|
|
iface lo inet loopback
|
|
|
|
source /etc/network/interfaces.d/bridges
|
|
|
|
iface eth0 inet static
|
|
address 192.168.1.1/24
|
|
up flush-mail
|
|
|
|
iface eth1 inet dhcp
|
|
|
|
Lines beginning with the word "auto" are used to identify the physical
|
|
interfaces to be brought up when ifup is run with the -a option.
|
|
(This option is used by the system boot scripts.) Physical interface names
|
|
should follow the word "auto" on the same line. There can be multiple
|
|
"auto" stanzas.
|
|
|
|
Lines beginning with "allow-" are used to identify interfaces that
|
|
should be brought up automatically by various subsystems. This may be
|
|
done using a command such as "ifup --allow=hotplug eth0 eth1", which
|
|
will only bring up eth0 or eth1 if it is listed in an "allow-hotplug"
|
|
line. Note that "allow-auto" and "auto" are synonyms.
|
|
|
|
Lines beginning with "source" are used to include stanzas from other
|
|
files, so configuration can be split into many files. The word "source"
|
|
is followed by the path of the file to be sourced. Shell wildcards can
|
|
be used. Currently only supports absolute path names.
|
|
|
|
iface is normally given a interface name as its first non-option
|
|
argument.
|
|
|
|
The interface name is followed by the name of the address family that the
|
|
interface uses. This will be "inet" for TCP/IP networking and inet6 for
|
|
ipv6. Following that is the name of the method used to configure the
|
|
interface.
|
|
|
|
ifupdown supports iface stanzas without a family or a method. This enables
|
|
using the same stanza for inet and inet6 family addresses. And the method
|
|
defaults to "static"
|
|
|
|
Additional interface options/attributes can be given on subsequent lines
|
|
in the iface stanza. These options come from addon modules. see
|
|
**ifupdown-addons-interfaces(5)** for these options.
|
|
|
|
example bridge interface with additional attributes listed in the
|
|
**ifupdown-addons-interfaces(5)** man page::
|
|
|
|
auto br0
|
|
iface br0
|
|
address 12.0.0.4/24
|
|
address 2000:1000:1000:1000:3::5/128
|
|
bridge-ports swp1 swp2 swp3
|
|
bridge-stp on
|
|
|
|
ifupdown supports python-mako style templates in the interfaces file.
|
|
See examples section for details.
|
|
|
|
See **/usr/share/doc/ifupdown2/examples/** for **interfaces(5)**
|
|
file examples and interfaces file generation scripts.
|
|
|
|
METHODS
|
|
=======
|
|
Both **inet** and **inet6** address family interfaces can use the following
|
|
methods (However they are not required):
|
|
|
|
The loopback Method
|
|
This method may be used to define the loopback interface.
|
|
|
|
The static Method
|
|
This method may be used to define ethernet interfaces with
|
|
statically allocated addresses.
|
|
|
|
The dhcp Method
|
|
This method may be used to obtain an address via DHCP.
|
|
|
|
BUILTIN INTERFACES
|
|
==================
|
|
**iface** sections for some interfaces like physical interfaces or vlan
|
|
interfaces in dot notation (like eth1.100) are understood by ifupdown.
|
|
These interfaces do not need an entry in the interfaces file if
|
|
they are dependents of other interfaces and don't need any specific
|
|
configurations like addresses etc.
|
|
|
|
EXAMPLES
|
|
========
|
|
Sample /etc/network/interfaces file::
|
|
|
|
auto lo
|
|
iface lo
|
|
address 192.168.2.0/24
|
|
address 2001:dee:eeee:1::4/128
|
|
|
|
auto eth0
|
|
iface eth0 inet dhcp
|
|
|
|
auto eth1
|
|
iface eth1 inet manual
|
|
address 192.168.2.0/24
|
|
address 2001:dee:eeee:1::4/128
|
|
|
|
# source files from a directory /etc/network/interfaces.d
|
|
source /etc/network/interfaces.d/*
|
|
|
|
# Using mako style templates
|
|
% for v in [11,12]:
|
|
auto vlan${v}
|
|
iface vlan${v} inet static
|
|
address 10.20.${v}.3/24
|
|
% endfor
|
|
|
|
For additional syntax and examples see **ifupdown-addons-interfaces(5)**
|
|
|
|
FILES
|
|
=====
|
|
configuration file defined in ifupdown2.conf (default /etc/network/interfaces)
|
|
|
|
SEE ALSO
|
|
========
|
|
ifupdown-addons-interfaces(5),
|
|
ifup(8),
|
|
ifquery(8),
|
|
ifreload(8)
|