subnet

A subnet is a block of IP addresses and associated configuration state. Subnets are used to allocate IP addresses when new ports are created on a network.

Network v2

subnet create

Create a subnet

openstack subnet create
    [--project <project>]
    [--project-domain <project-domain>]
    [--subnet-pool <subnet-pool> | --use-prefix-delegation USE_PREFIX_DELEGATION | --use-default-subnet-pool]
    [--prefix-length <prefix-length>]
    [--subnet-range <subnet-range>]
    [--dhcp | --no-dhcp]
    [--gateway <gateway>]
    [--ip-version {4,6}]
    [--ipv6-ra-mode {dhcpv6-stateful,dhcpv6-stateless,slaac}]
    [--ipv6-address-mode {dhcpv6-stateful,dhcpv6-stateless,slaac}]
    [--network-segment <network-segment>]
    --network <network>
    [--description <description>]
    [--allocation-pool start=<ip-address>,end=<ip-address>]
    [--dns-nameserver <dns-nameserver>]
    [--host-route destination=<subnet>,gateway=<ip-address>]
    [--service-type <service-type>]
    [--tag <tag> | --no-tag]
    <name>
--project <project>

Owner’s project (name or ID)

--project-domain <project-domain>

Domain the project belongs to (name or ID). This can be used in case collisions between project names exist.

--subnet-pool <subnet-pool>

Subnet pool from which this subnet will obtain a CIDR (Name or ID)

--use-prefix-delegation <USE_PREFIX_DELEGATION>

Use ‘prefix-delegation’ if IP is IPv6 format and IP would be delegated externally

--use-default-subnet-pool

Use default subnet pool for –ip-version

--prefix-length <prefix-length>

Prefix length for subnet allocation from subnet pool

--subnet-range <subnet-range>

Subnet range in CIDR notation (required if –subnet-pool is not specified, optional otherwise)

--dhcp

Enable DHCP (default)

--no-dhcp

Disable DHCP

--gateway <gateway>

Specify a gateway for the subnet. The three options are: <ip-address>: Specific IP address to use as the gateway, ‘auto’: Gateway address should automatically be chosen from within the subnet itself, ‘none’: This subnet will not use a gateway, e.g.: –gateway 192.168.9.1, –gateway auto, –gateway none (default is ‘auto’).

--ip-version <IP_VERSION>

IP version (default is 4). Note that when subnet pool is specified, IP version is determined from the subnet pool and this option is ignored.

--ipv6-ra-mode <IPV6_RA_MODE>

IPv6 RA (Router Advertisement) mode, valid modes: [dhcpv6-stateful, dhcpv6-stateless, slaac]

--ipv6-address-mode <IPV6_ADDRESS_MODE>

IPv6 address mode, valid modes: [dhcpv6-stateful, dhcpv6-stateless, slaac]

--network-segment <network-segment>

Network segment to associate with this subnet (name or ID)

--network <network>

Network this subnet belongs to (name or ID)

--description <description>

Set subnet description

--allocation-pool start=<ip-address>,end=<ip-address>

Allocation pool IP addresses for this subnet e.g.: start=192.168.199.2,end=192.168.199.254 (repeat option to add multiple IP addresses)

--dns-nameserver <dns-nameserver>

DNS server for this subnet (repeat option to set multiple DNS servers)

--host-route destination=<subnet>,gateway=<ip-address>

Additional route for this subnet e.g.: destination=10.10.0.0/16,gateway=192.168.71.254 destination: destination subnet (in CIDR notation) gateway: nexthop IP address (repeat option to add multiple routes)

--service-type <service-type>

Service type for this subnet e.g.: network:floatingip_agent_gateway. Must be a valid device owner value for a network port (repeat option to set multiple service types)

--tag <tag>

Tag to be added to the subnet (repeat option to set multiple tags)

--no-tag

No tags associated with the subnet

name

New subnet name

This command is provided by the python-openstackclient plugin.

subnet delete

Delete subnet(s)

openstack subnet delete <subnet> [<subnet> ...]
subnet

Subnet(s) to delete (name or ID)

This command is provided by the python-openstackclient plugin.

subnet list

List subnets

openstack subnet list
    [--sort-column SORT_COLUMN]
    [--long]
    [--ip-version <ip-version>]
    [--dhcp | --no-dhcp]
    [--service-type <service-type>]
    [--project <project>]
    [--project-domain <project-domain>]
    [--network <network>]
    [--gateway <gateway>]
    [--name <name>]
    [--subnet-range <subnet-range>]
    [--tags <tag>[,<tag>,...]]
    [--any-tags <tag>[,<tag>,...]]
    [--not-tags <tag>[,<tag>,...]]
    [--not-any-tags <tag>[,<tag>,...]]
--sort-column SORT_COLUMN

specify the column(s) to sort the data (columns specified first have a priority, non-existing columns are ignored), can be repeated

--long

List additional fields in output

--ip-version <ip-version>

List only subnets of given IP version in output. Allowed values for IP version are 4 and 6.

--dhcp

List subnets which have DHCP enabled

--no-dhcp

List subnets which have DHCP disabled

--service-type <service-type>

List only subnets of a given service type in output e.g.: network:floatingip_agent_gateway. Must be a valid device owner value for a network port (repeat option to list multiple service types)

--project <project>

List only subnets which belong to a given project in output (name or ID)

--project-domain <project-domain>

Domain the project belongs to (name or ID). This can be used in case collisions between project names exist.

--network <network>

List only subnets which belong to a given network in output (name or ID)

--gateway <gateway>

List only subnets of given gateway IP in output

--name <name>

List only subnets of given name in output

--subnet-range <subnet-range>

List only subnets of given subnet range (in CIDR notation) in output e.g.: –subnet-range 10.10.0.0/16

--tags <tag>[,<tag>,...]

List subnets which have all given tag(s) (Comma-separated list of tags)

--any-tags <tag>[,<tag>,...]

List subnets which have any given tag(s) (Comma-separated list of tags)

--not-tags <tag>[,<tag>,...]

Exclude subnets which have all given tag(s) (Comma-separated list of tags)

--not-any-tags <tag>[,<tag>,...]

Exclude subnets which have any given tag(s) (Comma-separated list of tags)

This command is provided by the python-openstackclient plugin.

subnet set

Set subnet properties

openstack subnet set
    [--name <name>]
    [--dhcp | --no-dhcp]
    [--gateway <gateway>]
    [--network-segment <network-segment>]
    [--description <description>]
    [--tag <tag>]
    [--no-tag]
    [--allocation-pool start=<ip-address>,end=<ip-address>]
    [--no-allocation-pool]
    [--dns-nameserver <dns-nameserver>]
    [--no-dns-nameservers]
    [--host-route destination=<subnet>,gateway=<ip-address>]
    [--no-host-route]
    [--service-type <service-type>]
    <subnet>
--name <name>

Updated name of the subnet

--dhcp

Enable DHCP

--no-dhcp

Disable DHCP

--gateway <gateway>

Specify a gateway for the subnet. The options are: <ip-address>: Specific IP address to use as the gateway, ‘none’: This subnet will not use a gateway, e.g.: –gateway 192.168.9.1, –gateway none.

--network-segment <network-segment>

Network segment to associate with this subnet (name or ID). It is only allowed to set the segment if the current value is None, the network must also have only one segment and only one subnet can exist on the network.

--description <description>

Set subnet description

--tag <tag>

Tag to be added to the subnet (repeat option to set multiple tags)

--no-tag

Clear tags associated with the subnet. Specify both –tag and –no-tag to overwrite current tags

--allocation-pool start=<ip-address>,end=<ip-address>

Allocation pool IP addresses for this subnet e.g.: start=192.168.199.2,end=192.168.199.254 (repeat option to add multiple IP addresses)

--no-allocation-pool

Clear associated allocation-pools from the subnet. Specify both –allocation-pool and –no-allocation-pool to overwrite the current allocation pool information.

--dns-nameserver <dns-nameserver>

DNS server for this subnet (repeat option to set multiple DNS servers)

--no-dns-nameservers

Clear existing information of DNS Nameservers. Specify both –dns-nameserver and –no-dns-nameserver to overwrite the current DNS Nameserver information.

--host-route destination=<subnet>,gateway=<ip-address>

Additional route for this subnet e.g.: destination=10.10.0.0/16,gateway=192.168.71.254 destination: destination subnet (in CIDR notation) gateway: nexthop IP address (repeat option to add multiple routes)

--no-host-route

Clear associated host-routes from the subnet. Specify both –host-route and –no-host-route to overwrite the current host route information.

--service-type <service-type>

Service type for this subnet e.g.: network:floatingip_agent_gateway. Must be a valid device owner value for a network port (repeat option to set multiple service types)

subnet

Subnet to modify (name or ID)

This command is provided by the python-openstackclient plugin.

subnet show

Display subnet details

openstack subnet show <subnet>
subnet

Subnet to display (name or ID)

This command is provided by the python-openstackclient plugin.

subnet unset

Unset subnet properties

openstack subnet unset
    [--allocation-pool start=<ip-address>,end=<ip-address>]
    [--dns-nameserver <dns-nameserver>]
    [--host-route destination=<subnet>,gateway=<ip-address>]
    [--service-type <service-type>]
    [--tag <tag> | --all-tag]
    <subnet>
--allocation-pool start=<ip-address>,end=<ip-address>

Allocation pool IP addresses to be removed from this subnet e.g.: start=192.168.199.2,end=192.168.199.254 (repeat option to unset multiple allocation pools)

--dns-nameserver <dns-nameserver>

DNS server to be removed from this subnet (repeat option to unset multiple DNS servers)

--host-route destination=<subnet>,gateway=<ip-address>

Route to be removed from this subnet e.g.: destination=10.10.0.0/16,gateway=192.168.71.254 destination: destination subnet (in CIDR notation) gateway: nexthop IP address (repeat option to unset multiple host routes)

--service-type <service-type>

Service type to be removed from this subnet e.g.: network:floatingip_agent_gateway. Must be a valid device owner value for a network port (repeat option to unset multiple service types)

--tag <tag>

Tag to be removed from the subnet (repeat option to remove multiple tags)

--all-tag

Clear all tags associated with the subnet

subnet

Subnet to modify (name or ID)

This command is provided by the python-openstackclient plugin.