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Message #36496
[Bug 1481540] [NEW] no interface created in DHCP namespace for second subnet (dhcp enabled) on a network
Public bug reported:
Steps to reproduce:
On devstack:
1. create a network.
2. create a subnet (dhcp enabled); we can see DHCP namespace with one interface for the subnet.
3. create another subnet (dhcp enabled).
We do not see another interface for this subnet in DHCP namespace.
LOGS:
======
stack@ritesh05:/opt/stack/neutron$ neutron net-list
+--------------------------------------+---------+--------------------------------------------------+
| id | name | subnets |
+--------------------------------------+---------+--------------------------------------------------+
| bff21881-abcf-4c68-afd7-fae081e87f9c | public | |
| beaabd4a-8211-41f5-906d-d685c1ee6b10 | private | 0d8d834c-5806-453e-852e-4382f53d956c 20.0.0.0/24 |
| | | f11c53f8-f254-4c88-b6dd-3ba3fec68329 10.0.0.0/24 |
+--------------------------------------+---------+--------------------------------------------------+
stack@ritesh05:/opt/stack/neutron$ neutron subnet-list
+--------------------------------------+-----------------+-------------+--------------------------------------------+
| id | name | cidr | allocation_pools |
+--------------------------------------+-----------------+-------------+--------------------------------------------+
| 0d8d834c-5806-453e-852e-4382f53d956c | private-subnet2 | 20.0.0.0/24 | {"start": "20.0.0.2", "end": "20.0.0.254"} |
| f11c53f8-f254-4c88-b6dd-3ba3fec68329 | private-subnet | 10.0.0.0/24 | {"start": "10.0.0.2", "end": "10.0.0.254"} |
+--------------------------------------+-----------------+-------------+--------------------------------------------+
stack@ritesh05:/opt/stack/neutron$
stack@ritesh05:/opt/stack/neutron$ sudo ip netns exec qdhcp-beaabd4a-8211-41f5-906d-d685c1ee6b10 ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
tapc97de8da-97 Link encap:Ethernet HWaddr fa:16:3e:a2:b8:02
inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fea2:b802/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:738 (738.0 B)
stack@ritesh05:/opt/stack/neutron$
** Affects: neutron
Importance: Undecided
Status: New
** Tags: l3-ipam-dhcp neutron-core
--
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Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1481540
Title:
no interface created in DHCP namespace for second subnet (dhcp
enabled) on a network
Status in neutron:
New
Bug description:
Steps to reproduce:
On devstack:
1. create a network.
2. create a subnet (dhcp enabled); we can see DHCP namespace with one interface for the subnet.
3. create another subnet (dhcp enabled).
We do not see another interface for this subnet in DHCP namespace.
LOGS:
======
stack@ritesh05:/opt/stack/neutron$ neutron net-list
+--------------------------------------+---------+--------------------------------------------------+
| id | name | subnets |
+--------------------------------------+---------+--------------------------------------------------+
| bff21881-abcf-4c68-afd7-fae081e87f9c | public | |
| beaabd4a-8211-41f5-906d-d685c1ee6b10 | private | 0d8d834c-5806-453e-852e-4382f53d956c 20.0.0.0/24 |
| | | f11c53f8-f254-4c88-b6dd-3ba3fec68329 10.0.0.0/24 |
+--------------------------------------+---------+--------------------------------------------------+
stack@ritesh05:/opt/stack/neutron$ neutron subnet-list
+--------------------------------------+-----------------+-------------+--------------------------------------------+
| id | name | cidr | allocation_pools |
+--------------------------------------+-----------------+-------------+--------------------------------------------+
| 0d8d834c-5806-453e-852e-4382f53d956c | private-subnet2 | 20.0.0.0/24 | {"start": "20.0.0.2", "end": "20.0.0.254"} |
| f11c53f8-f254-4c88-b6dd-3ba3fec68329 | private-subnet | 10.0.0.0/24 | {"start": "10.0.0.2", "end": "10.0.0.254"} |
+--------------------------------------+-----------------+-------------+--------------------------------------------+
stack@ritesh05:/opt/stack/neutron$
stack@ritesh05:/opt/stack/neutron$ sudo ip netns exec qdhcp-beaabd4a-8211-41f5-906d-d685c1ee6b10 ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
tapc97de8da-97 Link encap:Ethernet HWaddr fa:16:3e:a2:b8:02
inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fea2:b802/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:738 (738.0 B)
stack@ritesh05:/opt/stack/neutron$
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