So I have been digging more into this and looks like the dhcp request is
going to the wrong controller. It seems to be going to controller 3 when
the dnsmasq processes seem to be on controller 1 & 2. Am I missing
something here? If not, then why would this happen and how can I go about
fixing it:
--
c1-m1-mgmt:~$ neutron net-list | grep -i exp
| *1b67adc8-a049-4438-9533-2abe003aac0d* | exp-network
| e9565c6a-31b0-40e2-83dc-0958a7c0467f 192.168.1.0/24 |
*** the below shows the dhcp agents running on controller 01 and 02 ***
c1-m1-mgmt:~$ neutron dhcp-agent-list-hosting-net 1b67adc8-a049-4438-9533-
2abe003aac0d
+--------------------------------------+--------------------
----+----------------+-------+
| id | host |
admin_state_up | alive |
+--------------------------------------+--------------------
----+----------------+-------+
| 2bf750a1-5754-4f5a-b119-72248561787b | c1-m2-mgmt | True
| :-) |
| 758d3766-1e00-4c13-9747-9846a41e2416 | c1-m1-mgmt | True
| :-) |
+--------------------------------------+--------------------
----+----------------+-------+
*** but the dhcp request for a instance connected to that bad network comes
to controller 3 which never responds ***c1-m3-mgmt:~# tcpdump -n -i any |
grep -i fa:16:3e:d8:00:20
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type LINUX_SLL (Linux cooked), capture size 262144
bytes
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
fa:16:3e:d8:00:20, length 280
^C1073079 packets captured
1121416 packets received by filter
368 packets dropped by kernel
--
Any help with this would be appreciated.
Thanks.
On Thu, Apr 28, 2016 at 6:29 PM, Jagga Soorma <jagg...@gmail.com> wrote:
> I see the mac address of the instance asking for a dhcp address from the
> compute node:
>
> --
> # tcpdump -n -i any | grep -i fa:16:3e:b2:0f
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on any, link-type LINUX_SLL (Linux cooked), capture size 262144
> bytes
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> 01:23:34.588729 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> 01:23:34.588738 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> 01:23:34.588738 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from
> fa:16:3e:b2:0f:c0, length 300
> 01:23:48.018979 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> 01:23:48.018989 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> 01:23:48.018989 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
> from fa:16:3e:b2:0f:c0, length 300
> ..snip..
> --
>
>
>
> On Thu, Apr 28, 2016 at 5:55 PM, Jagga Soorma <jagg...@gmail.com> wrote:
>
>> Hi Guys,
>>
>> I have a project with a priv network setup and any instance connected to
>> it can't seem to get to its meta data service and no network gets setup on
>> that instance.
>>
>> I created a new priv network in that project and was able to get
>> communication on a new instance connected to that priv network with the
>> same settings and using the same image and security group.
>>
>> Looks like there is something up with the network but I can't seem to
>> find out what from the horizon ui. They look and feel the same. Any
>> pointers on how I can further troubleshoot this problem?
>>
>> Thanks!
>>
>
>
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