podman/docs/source/markdown/podman-network-create.1.md

% podman-network-create(1)

NAME

podman-network-create - Create a Podman CNI network

SYNOPSIS

podman network create [options] name

DESCRIPTION

Create a CNI-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. In the case of Macvlan connections, the CNI dhcp plugin needs to be activated or the container image must have a DHCP client to interact with the host network's DHCP server.

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.

--opt=option, -o

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 option:

• vlan: This option assign VLAN tag and enables vlan_filtering. Defaults to none.

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.

--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.

--label

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

--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.

--ipv6

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

EXAMPLE

Create a network with no options.

$ podman network create
cni-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
cni-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 newnet
newnet

SEE ALSO

podman(1), podman-network(1), podman-network-inspect(1), podman-network-ls(1)

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