Public bug reported:
Reproduce:
1. Create VXLAN network + subnet with disable gateway option and enable DHCP
2. Create VM on that network
3. Check log neutron openvswitch
Log:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
[req-99d7dca8-b870-4ae2-a54e-3fd2485b51ad - - - - -] DHCPv4Responder: Exception
occurred during handler processing. Backtrace from offending handler [
packet_in_handler] servicing event [EventOFPPacketIn] follows.: TypeError:
unexpected type <class 'NoneType'> for addr arg
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager Traceback (most recent
call last):
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/lib/addrconv.py", line
29, in text_to_bin
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager return
self._addr(text, **self._addr_kwargs).packed
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
316, in __init__
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager if 0 <= int(addr)
<= self._module.max_int:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager TypeError: int()
argument must be a string, a bytes-like object or a number, not 'NoneType'
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager During handling of the
above exception, another exception occurred:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager Traceback (most recent
call last):
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/base/app_manager.py",
line 289, in _event_loop
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager handler(ev)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/base_oskenapp.py",
line 38, in p
acket_in_handler
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager caller(ev)
2025-04-17 14:46:55.762 6 ERROR
os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/base.py",
line 108, in _packet_in_handler
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
self.handle_dhcp(datapath, of_in_port, pkt, port_info)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 210, in handle_dhcp 2025-04-17 14:46:55.762 6
ERROR os_ken.base.app_manager self.assemble_offer(pkt, port_info))
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 192, in assemble_offer
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager offer =
self.get_ret_packet(pkt, port_info)
2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 151, in get_ret_packet
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager options =
self.get_dhcp_options(port_info, is_ack)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 75, in get_dhcp_options 2025-04-17 14:46:55.762 6
ERROR os_ken.base.app_manager bin_server =
addrconv.ipv4.text_to_bin(gateway_ip)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/lib/addrconv.py", line
36, in text_to_bin
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager ip =
self._fallback(text, **self._addr_kwargs)
2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
930, in __init__
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager value, prefixlen =
parse_ip_network(_ipv4, addr,
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
831, in parse_ip_network 2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager raise TypeError('unexpected
type %s for addr arg' % type(addr))
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager TypeError: unexpected
type <class 'NoneType'> for addr arg
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 INFO
neutron.agent.l2.extensions.dhcp.base [req-333c7bb7-8355-4058-80d8-4a50e8a92c15
- - - - -] DHCP Controller packet in OF port: 589
** Affects: neutron
Importance: Undecided
Assignee: Dai Dang Van (daikk115)
Status: New
** Changed in: neutron
Assignee: (unassigned) => Dai Dang Van (daikk115)
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https://bugs.launchpad.net/bugs/2107552
Title:
Disable gateway error with flow based DHCP
Status in neutron:
New
Bug description:
Reproduce:
1. Create VXLAN network + subnet with disable gateway option and enable DHCP
2. Create VM on that network
3. Check log neutron openvswitch
Log:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
[req-99d7dca8-b870-4ae2-a54e-3fd2485b51ad - - - - -] DHCPv4Responder: Exception
occurred during handler processing. Backtrace from offending handler [
packet_in_handler] servicing event [EventOFPPacketIn] follows.: TypeError:
unexpected type <class 'NoneType'> for addr arg
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager Traceback (most
recent call last):
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/lib/addrconv.py", line
29, in text_to_bin
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager return
self._addr(text, **self._addr_kwargs).packed
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
316, in __init__
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager if 0 <= int(addr)
<= self._module.max_int:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager TypeError: int()
argument must be a string, a bytes-like object or a number, not 'NoneType'
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager During handling of
the above exception, another exception occurred:
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager Traceback (most
recent call last):
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/base/app_manager.py",
line 289, in _event_loop
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager handler(ev)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/base_oskenapp.py",
line 38, in p
acket_in_handler
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager caller(ev)
2025-04-17 14:46:55.762 6 ERROR
os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/base.py",
line 108, in _packet_in_handler
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
self.handle_dhcp(datapath, of_in_port, pkt, port_info)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 210, in handle_dhcp 2025-04-17 14:46:55.762 6
ERROR os_ken.base.app_manager self.assemble_offer(pkt, port_info))
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 192, in assemble_offer
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager offer =
self.get_ret_packet(pkt, port_info)
2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 151, in get_ret_packet
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager options =
self.get_dhcp_options(port_info, is_ack)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/neutron/agent/l2/extensions/dhcp/ipv4.py",
line 75, in get_dhcp_options 2025-04-17 14:46:55.762 6
ERROR os_ken.base.app_manager bin_server =
addrconv.ipv4.text_to_bin(gateway_ip)
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/os_ken/lib/addrconv.py", line
36, in text_to_bin
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager ip =
self._fallback(text, **self._addr_kwargs)
2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
930, in __init__
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager value, prefixlen
= parse_ip_network(_ipv4, addr,
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager File
"/var/lib/kolla/venv/lib/python3.8/site-packages/netaddr/ip/__init__.py", line
831, in parse_ip_network 2025-04-17
14:46:55.762 6 ERROR os_ken.base.app_manager raise TypeError('unexpected
type %s for addr arg' % type(addr))
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager TypeError: unexpected
type <class 'NoneType'> for addr arg
2025-04-17 14:46:55.762 6 ERROR os_ken.base.app_manager
2025-04-17 14:46:55.762 6 INFO
neutron.agent.l2.extensions.dhcp.base [req-333c7bb7-8355-4058-80d8-4a50e8a92c15
- - - - -] DHCP Controller packet in OF port: 589
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