openstack-subnet

manages IP subnets within OpenStack networks

TLDR

List subnets

$ openstack subnet list

Create subnet

$ openstack subnet create --network [network] --subnet-range [192.168.1.0/24] [subnet_name]

Show subnet details

$ openstack subnet show [subnet_name]

Delete subnet

$ openstack subnet delete [subnet_name]

SYNOPSIS

openstack subnet command [options]

DESCRIPTION

openstack subnet manages IP subnets within OpenStack networks. Configure IP ranges, DHCP, DNS, and routing for virtual networks. Part of OpenStack unified CLI.

PARAMETERS

list

List subnets.

create name

Create subnet.

delete name

Delete subnet.

show name

Show subnet details.

--network network

Parent network.

--subnet-range cidr

IP address range in CIDR.

--gateway ip

Gateway IP address.

--dhcp / --no-dhcp

Enable or disable DHCP on the subnet (default: enabled).

--dns-nameserver ip

DNS server address (repeat for multiple).

--allocation-pool start=IP,end=IP

Restrict DHCP allocation to a range within the subnet (repeatable).

--ip-version 4|6

IP version of the subnet (default: 4).

--ipv6-address-mode MODE

IPv6 address mode: slaac, dhcpv6-stateful, or dhcpv6-stateless.

--ipv6-ra-mode MODE

IPv6 router advertisement mode (same values as --ipv6-address-mode).

--host-route destination=CIDR,gateway=IP

Add a static host route (repeatable).

--subnet-pool NAME

Allocate the range from a subnet pool instead of specifying --subnet-range directly.