Open Stack

When instances can't get IP from DHCP.

On network node, I can observed the DHCP request can be received, but it complains can't reach the ICMP host :

    tcpdump -i eth4
    14:31:51.314974 IP 192.101.11.102 > 192.101.11.201: GREv0, key=0x1, length 350: IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:73:dc:7a (oui Unknown), length 300
    14:31:51.315028 IP 192.101.11.201 > 192.101.11.102: ICMP host 192.101.11.201 unreachable - admin prohibited, length 378

Anyone know why ???


Thanks.
-chen


-----Original Message-----
From: Mārtiņš Jakubovičs [mailto:martins at hostnet.lv] 
Sent: Friday, January 03, 2014 3:44 PM
To: Remo Mattei; Li, Chen
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] can't get IP when I working with ml2 + GRE

Hello Remo,

Yes, in test purposes I disabled iptable rules in all nodes and in hypervisor.

On 2014.01.03. 4:11, Remo Mattei wrote:
> Are you sure your iptables is not blocking anything?
>
> Inviato da iPhone ()
>
>> Il giorno Jan 2, 2014, alle ore 17:07, "Li, Chen" <chen.li at intel.com> ha scritto:
>>
>>
>> 2.6.32-358.111.1.openstack.el6.x86_64
>>
>> Thanks.
>> -chen
>>
>> -----Original Message-----
>> From: Mārtiņš Jakubovičs [mailto:martins at hostnet.lv]
>> Sent: Thursday, January 02, 2014 5:35 PM
>> To: openstack at lists.openstack.org
>> Subject: Re: [Openstack] can't get IP when I working with ml2 + GRE
>>
>> Hello Li,
>>
>> I have similar issue, unfortunately I use Ubuntu system on my network node. When I manualy setup IP in instance, network works, but when I setup to use DHCP, it fails to assign IP. Which kernel you got before?
>>
>>> On 2014.01.02. 7:03, Li, Chen wrote:
>>> After upgrade network node's kernel to 2.6.32-358.123.2.openstack.el6.x86_64, the issue looks gone.
>>>
>>> Thanks.
>>> -chen
>>>
>>> -----Original Message-----
>>> From: Li, Chen [mailto:chen.li at intel.com]
>>> Sent: Thursday, January 02, 2014 9:12 AM
>>> To: Dnsbed Ops; openstack at lists.openstack.org
>>> Subject: Re: [Openstack] can't get IP when I working with ml2 + GRE
>>>
>>> Yes, DHCP is enabled, and I can see IP is already in 
>>> /var/lib/neutron/dhcp/${net_id}/ host
>>>
>>> Thanks.
>>> -chen
>>>
>>> -----Original Message-----
>>> From: Dnsbed Ops [mailto:ops at dnsbed.com]
>>> Sent: Monday, December 30, 2013 6:21 PM
>>> To: openstack at lists.openstack.org
>>> Subject: Re: [Openstack] can't get IP when I working with ml2 + GRE
>>>
>>>> On 2013-12-30 14:50, Li, Chen wrote:
>>>> I created a gre network and booted a instance successfully.
>>>> No error can be found in log.
>>>> But, my instance can't get IP from dhcp agent.
>>>>
>>>> Anyone know why this happen ??????
>>> We run GRE + OVS + Neutron, the dhcp works well.
>>> Are you sure dhcp is enabled?
>>> for neutron it is:
>>>
>>> $ neutron port-list -c id -c device_owner
>>>
>>> And we see a line like:
>>>
>>> | e422bb05-3f51-45f1-b688-a1d9c20f197c | network:dhcp
>>>
>>> This means at least dhcp has been running there.
>>>
>>> Regards.
>>>
>>> _______________________________________________
>>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>> Post to     : openstack at lists.openstack.org
>>> Unsubscribe :
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>
>>> _______________________________________________
>>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>> Post to     : openstack at lists.openstack.org
>>> Unsubscribe :
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>
>>> _______________________________________________
>>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>> Post to     : openstack at lists.openstack.org
>>> Unsubscribe :
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> _______________________________________________
>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> Post to     : openstack at lists.openstack.org
>> Unsubscribe : 
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>
>> _______________________________________________
>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> Post to     : openstack at lists.openstack.org
>> Unsubscribe : 
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>
>> !DSPAM:52c60ed3147241694511171!
>>