Public bug reported:
Problem :
OpenStack has down time to establish the ports for DHCP by creating subnet
("enable_dhcp":true), I can not control and know which IP is going to be or
apply as DHCP agents. The response can't provide the specific IP which is
selected as Attached Device(network:dhcp) immediatly. In my observations and
experiments, create the subnet with multiple allocation Pools, the IP will be
used as DHCP agents randomly by different allocation pools. I need to use the
Get /v2.0/ports to map the networks and subnets repeatly until the first IP is
show up in the repsonse.
If there's a way let us know which IP is used as DHCP agents by multiple
allocation Pools after geting the response by creating the subnet.
------
I sent a post which references the Networking API v2.0 to create a
subnet within multiple allocation Pools by the network, and I also
enable DHCP with ture.
version: mitaka
POST /v2.0/subnets
#Response
{"subnet":{"allocation_pools":[
{"start":"172.18.0.1","end":"172.18.0.10"},
{"start":"172.18.0.20","end":"172.18.0.30"}],
"ipv6_address_mode":null,
"tenant_id":"b3746b09cacb421cba95ce1afd380762",
"subnetpool_id":null,
"gateway_ip":"172.18.0.254",
"cidr":"172.18.0.0/24",
"id":"73b8ffaa-6fed-425a-b00b-fb75dffdaa57",
"updated_at":"2018-01-03T04:18:22",
"network_id":"0926e907-8e69-4231-ae2f-a051b2d77bf2",
"dns_nameservers":["8.8.8.8"],
"description":"","name":"",
"enable_dhcp":true,
"created_at":"2018-01-03T04:18:22","ipv6_ra_mode":null,"host_routes":[],"ip_version":4}}
--------
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1740998
Title:
DHCP Agents of multiple Allocation Pools
Status in neutron:
New
Bug description:
Problem :
OpenStack has down time to establish the ports for DHCP by creating subnet
("enable_dhcp":true), I can not control and know which IP is going to be or
apply as DHCP agents. The response can't provide the specific IP which is
selected as Attached Device(network:dhcp) immediatly. In my observations and
experiments, create the subnet with multiple allocation Pools, the IP will be
used as DHCP agents randomly by different allocation pools. I need to use the
Get /v2.0/ports to map the networks and subnets repeatly until the first IP is
show up in the repsonse.
If there's a way let us know which IP is used as DHCP agents by
multiple allocation Pools after geting the response by creating the
subnet.
------
I sent a post which references the Networking API v2.0 to create a
subnet within multiple allocation Pools by the network, and I also
enable DHCP with ture.
version: mitaka
POST /v2.0/subnets
#Response
{"subnet":{"allocation_pools":[
{"start":"172.18.0.1","end":"172.18.0.10"},
{"start":"172.18.0.20","end":"172.18.0.30"}],
"ipv6_address_mode":null,
"tenant_id":"b3746b09cacb421cba95ce1afd380762",
"subnetpool_id":null,
"gateway_ip":"172.18.0.254",
"cidr":"172.18.0.0/24",
"id":"73b8ffaa-6fed-425a-b00b-fb75dffdaa57",
"updated_at":"2018-01-03T04:18:22",
"network_id":"0926e907-8e69-4231-ae2f-a051b2d77bf2",
"dns_nameservers":["8.8.8.8"],
"description":"","name":"",
"enable_dhcp":true,
"created_at":"2018-01-03T04:18:22","ipv6_ra_mode":null,"host_routes":[],"ip_version":4}}
--------
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