1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
'\" t
.TH "SYSTEMD\-NETWORKD\&.SERVICE" "8" "" "systemd 254" "systemd-networkd.service"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
systemd-networkd.service, systemd-networkd \- Network manager
.SH "SYNOPSIS"
.PP
systemd\-networkd\&.service
.PP
/lib/systemd/systemd\-networkd
.SH "DESCRIPTION"
.PP
\fBsystemd\-networkd\fR
is a system service that manages networks\&. It detects and configures network devices as they appear, as well as creating virtual network devices\&.
.PP
To configure low\-level link settings independently of networks, see
\fBsystemd.link\fR(5)\&.
.PP
\fBsystemd\-networkd\fR
will create network devices based on the configuration in
\fBsystemd.netdev\fR(5)
files, respecting the [Match] sections in those files\&.
.PP
\fBsystemd\-networkd\fR
will manage network addresses and routes for any link for which it finds a
\&.network
file with an appropriate [Match] section, see
\fBsystemd.network\fR(5)\&. For those links, it will flush existing network addresses and routes when bringing up the device\&. Any links not matched by one of the
\&.network
files will be ignored\&. It is also possible to explicitly tell
systemd\-networkd
to ignore a link by using
\fIUnmanaged=yes\fR
option, see
\fBsystemd.network\fR(5)\&.
.PP
When
systemd\-networkd
exits, it generally leaves existing network devices and configuration intact\&. This makes it possible to transition from the initrd and to restart the service without breaking connectivity\&. This also means that when configuration is updated and
systemd\-networkd
is restarted, netdev interfaces for which configuration was removed will not be dropped, and may need to be cleaned up manually\&.
.PP
\fBsystemd\-networkd\fR
may be introspected and controlled at runtime using
\fBnetworkctl\fR(1)\&.
.SH "CONFIGURATION FILES"
.PP
The configuration files are read from the files located in the system network directory
/lib/systemd/network, the volatile runtime network directory
/run/systemd/network
and the local administration network directory
/etc/systemd/network\&.
.PP
Networks are configured in
\&.network
files, see
\fBsystemd.network\fR(5), and virtual network devices are configured in
\&.netdev
files, see
\fBsystemd.netdev\fR(5)\&.
.SH "SEE ALSO"
.PP
\fBnetworkctl\fR(1),
\fBsystemd\fR(1),
\fBsystemd.link\fR(5),
\fBsystemd.network\fR(5),
\fBsystemd.netdev\fR(5),
\fBsystemd-networkd-wait-online.service\fR(8),
\fBsystemd-network-generator.service\fR(8)
|
