summaryrefslogtreecommitdiff
path: root/docs/source/markdown/podman-network-create.1.md
blob: 6fd31dd4d12e8ba39e281ae800509f85f06b7898 (plain)
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
% podman-network-create 1

## NAME
podman\-network-create - Create a Podman network

## SYNOPSIS
**podman network create**  [*options*] [*name*]

## DESCRIPTION
Create a network configuration for use with Podman. By default, Podman creates a bridge connection.
A *Macvlan* connection can be created with the *-d macvlan* option. A parent device for macvlan can
be designated with the *-o parent=`<device>`* option.

If no options are provided, Podman will assign a free subnet and name for your network.

Upon completion of creating the network, Podman will display the name of the newly added network.

## OPTIONS
#### **--disable-dns**

Disables the DNS plugin for this network which if enabled, can perform container to container name
resolution.

#### **--driver**, **-d**

Driver to manage the network. Currently `bridge`, `macvlan` and `ipvlan` are supported. Defaults to `bridge`.
As rootless the `macvlan` and `ipvlan` driver have no access to the host network interfaces because rootless networking requires a separate network namespace.

Special considerations for the *netavark* backend:
- The `macvlan` driver requires the `--subnet` option, DHCP is currently not supported.
- The `ipvlan` driver is not currently supported.

#### **--gateway**

Define a gateway for the subnet. If you want to provide a gateway address, you must also provide a
*subnet* option. Can be specified multiple times.
The argument order of the **--subnet**, **--gateway** and **--ip-range** options must match.

#### **--internal**

Restrict external access of this network. Note when using this option, the dnsname plugin will be
automatically disabled.

#### **--ip-range**

Allocate container IP from a range.  The range must be a complete subnet and in CIDR notation.  The *ip-range* option
must be used with a *subnet* option. Can be specified multiple times.
The argument order of the **--subnet**, **--gateway** and **--ip-range** options must match.

#### **--ipam-driver**=*driver*

Set the ipam driver (IP Address Management Driver) for the network. When unset podman will choose an
ipam driver automatically based on the network driver. Valid values are:
 - `host-local`: IP addresses are assigned locally.
 - `dhcp`: IP addresses are assigned from a dhcp server on your network. This driver is not yet supported with netavark. For CNI the *dhcp* plugin needs to be activated before.
 - `none`: No ip addresses are assigned to the interfaces.

You can see the driver in the **podman network inspect** output under the `ipam_options` field.

#### **--ipv6**

Enable IPv6 (Dual Stack) networking. If not subnets are given it will allocate a ipv4 and ipv6 subnet.

#### **--label**

Set metadata for a network (e.g., --label mykey=value).

#### **--opt**, **-o**=*option*

Set driver specific options.

All drivers accept the `mtu` option. The `mtu` option sets the Maximum Transmission Unit (MTU) and takes an integer value.

Additionally the `bridge` driver supports the following options:
- `vlan`: This option assign VLAN tag and enables vlan\_filtering. Defaults to none.
- `isolate`: This option isolates networks by blocking traffic between those that have this option enabled.

The `macvlan` and `ipvlan` driver support the following options:
- `parent`: The host device which should be used for the macvlan interface. Defaults to the default route interface.
- `mode`: This option sets the specified ip/macvlan mode on the interface.
  - Supported values for `macvlan` are `bridge`, `private`, `vepa`, `passthru`. Defaults to `bridge`.
  - Supported values for `ipvlan` are `l2`, `l3`, `l3s`. Defaults to `l2`.

#### **--subnet**

The subnet in CIDR notation. Can be specified multiple times to allocate more than one subnet for this network.
The argument order of the **--subnet**, **--gateway** and **--ip-range** options must match.
This is useful to set a static ipv4 and ipv6 subnet.

## EXAMPLE

Create a network with no options.
```
$ podman network create
podman2
```

Create a network named *newnet* that uses *192.5.0.0/16* for its subnet.
```
$ podman network create --subnet 192.5.0.0/16 newnet
newnet
```

Create an IPv6 network named *newnetv6* with a subnet of *2001:db8::/64*.
```
$ podman network create --subnet 2001:db8::/64 --ipv6 newnetv6
newnetv6
```

Create a network named *newnet* that uses *192.168.33.0/24* and defines a gateway as *192.168.133.3*.
```
$ podman network create --subnet 192.168.33.0/24 --gateway 192.168.33.3 newnet
newnet
```

Create a network that uses a *192.168.55.0/24** subnet and has an IP address range of *192.168.55.129 - 192.168.55.254*.
```
$ podman network create --subnet 192.168.55.0/24 --ip-range 192.168.55.128/25
podman5
```

Create a network with a static ipv4 and ipv6 subnet and set a gateway.
```
$ podman network create --subnet 192.168.55.0/24 --gateway 192.168.55.3 --subnet fd52:2a5a:747e:3acd::/64 --gateway fd52:2a5a:747e:3acd::10
podman4
```

Create a Macvlan based network using the host interface eth0. Macvlan networks can only be used as root.
```
# podman network create -d macvlan -o parent=eth0 --subnet 192.5.0.0/16 newnet
newnet
```

## SEE ALSO
**[podman(1)](podman.1.md)**, **[podman-network(1)](podman-network.1.md)**, **[podman-network-inspect(1)](podman-network-inspect.1.md)**, **[podman-network-ls(1)](podman-network-ls.1.md)**

## HISTORY
August 2021, Updated with the new network format by Paul Holzinger <pholzing@redhat.com>

August 2019, Originally compiled by Brent Baude <bbaude@redhat.com>