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[MarginHu <jhu_com@xxxxxxx>]

Public bug reported:

Hi Guy:

I met an issue , my vm failed to get an ip address from neutron dhcp
agent, and I found I can capture the dhcp request packet on br-int by
tcpdump , but didn't found the packet on br-tun.

If I config a static IP address, the network is OK.

how to trouble-shoot the issue?

my neutron is Ocata version and ml2 plugin is Openvswitch.

[root@cloud-sz-compute-f19-01 ~]# tcpdump -i br-int -enn
09:06:26.614849 fa:16:3e:df:77:45 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 346: vlan 2, p 0, ethertype IPv4, 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:df:77:45, length 300

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1697426

Title:
  dhcp request packet didn't been forwarded from br-int to br-tun

Status in neutron:
  New

Bug description:
  Hi Guy:

  I met an issue , my vm failed to get an ip address from neutron dhcp
  agent, and I found I can capture the dhcp request packet on br-int by
  tcpdump , but didn't found the packet on br-tun.

  If I config a static IP address, the network is OK.

  how to trouble-shoot the issue?

  my neutron is Ocata version and ml2 plugin is Openvswitch.

  [root@cloud-sz-compute-f19-01 ~]# tcpdump -i br-int -enn
  09:06:26.614849 fa:16:3e:df:77:45 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 346: vlan 2, p 0, ethertype IPv4, 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:df:77:45, length 300

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