openstack team mailing list archive

[Anil Vishnoi <vishnoianil@xxxxxxxxx>]

udhcpc (v1.18.5) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing


So this says that you didn't get DHCP response for your DHCP request
and hence your VM didn't get any ip address assigned.

I think as a next step of debugging, you need to check whether your
DHCP request packet is reaching to the DHCP or not? Dump the packets
at the networking node and check if you get any DHCP request packet.
If you are using openvswitch plugin with VLAN then make sure that your
switch ports are trunked and it allows traffic from all vlans.


Thanks

Anil



On Tue, May 7, 2013 at 2:27 PM, zengshan2008 <zengshan2008@xxxxxxxxx> wrote:

> **
> I am using three nodes to do the installation, and I am using the
> openvswitch plugin with the vlan mode, do I need to do some configration in
> the physical switch?
>
> 2013-05-07
>  ------------------------------
>  zengshan2008
>  ------------------------------
>  *发件人：*Anil Vishnoi
> *发送时间：*2013-05-07 16:16
> *主题：*Re: [Openstack] Unable to ping VM using OpenStack and
> Quantum(openvswitch plugin)
> *收件人：*"zengshan2008"<zengshan2008@xxxxxxxxx>
> *抄送：*"gong yong sheng"<gongysh@xxxxxxxxxxxxxxxxxx>,"gongysh"<
> gongysh@xxxxxxxxxx>,"openstack"<openstack@xxxxxxxxxxxxxxxxxxx>
>
>  one possible reason can be that your VM didn't get IP address from its
> DHCP server. Can you check your VM instance log (You can check it from
> dashboard) and see whether its sending the DHCP request for IP and getting
> any response from it
>
>
> On Tue, May 7, 2013 at 12:24 PM, zengshan2008 <zengshan2008@xxxxxxxxx>wrote:
>
>> **
>> **
>> Hi,
>> I've installed openstack using quantum by the guide
>>
>> https://github.com/mseknibilel/OpenStack-Folsom-Install-guide/blob/master/OpenStack_Folsom_Install_Guide_WebVersion.rst
>> everything works fine, but I can't ping vm from the outside world,
>> neither from the network node.The following is some of my configration.
>> *1) **root@networknode:/etc* <root@networknode:/etc>*# ip netns
>> *qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189
>> qdhcp-e58739ff-16dc-4289-8110-242f7818d314
>> *2) qrouter and qdhcp server is up*
>> root@networknode:/etc# ip netns exec
>> qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 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:16436  Metric:1
>>           RX packets:85 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:9224 (9.2 KB)  TX bytes:9224 (9.2 KB)
>>
>> qg-daf2c037-cc Link encap:Ethernet  HWaddr fa:16:3e:ea:f6:c3
>>           inet addr:192.168.23.102  Bcast:192.168.23.255
>> Mask:255.255.255.0
>>           inet6 addr: 2401:de00::f816:3eff:feea:f6c3/64 Scope:Global
>>           inet6 addr: fe80::f816:3eff:feea:f6c3/64 Scope:Link
>>           inet6 addr: 2401:de00::6066:acc0:66e3:7434/64 Scope:Global
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>           RX packets:5392 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:406572 (406.5 KB)  TX bytes:846 (846.0 B)
>>
>> qr-d9cb6d6d-5e Link encap:Ethernet  HWaddr fa:16:3e:6d:5a:3a
>>           inet addr:202.122.38.1  Bcast:202.122.38.255  Mask:255.255.255.0
>>           inet6 addr: fe80::f816:3eff:fe6d:5a3a/64 Scope:Link
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>           RX packets:24 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:108 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:2184 (2.1 KB)  TX bytes:5928 (5.9 KB)
>>
>> root@networknode:/etc# ip netns exec
>> qdhcp-e58739ff-16dc-4289-8110-242f7818d314 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:16436  Metric:1
>>           RX packets:10 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:840 (840.0 B)  TX bytes:840 (840.0 B)
>>
>> tape10a4f07-60 Link encap:Ethernet  HWaddr fa:16:3e:db:8f:23
>>           inet addr:202.122.38.14  Bcast:202.122.38.255
>> Mask:255.255.255.0
>>           inet6 addr: fe80::f816:3eff:fedb:8f23/64 Scope:Link
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>           RX packets:106 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:5760 (5.7 KB)  TX bytes:2652 (2.6 KB)
>> *3) qrouter can ping the dhcp server from the network node*
>> root@networknode:/etc# ip netns exec
>> qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ping 202.122.38.14
>> PING 202.122.38.14 (202.122.38.14) 56(84) bytes of data.
>> 64 bytes from 202.122.38.14: icmp_req=1 ttl=64 time=0.325 ms
>> 64 bytes from 202.122.38.14: icmp_req=2 ttl=64 time=0.023 ms
>> 64 bytes from 202.122.38.14: icmp_req=3 ttl=64 time=0.024 ms
>> ^C
>> --- 202.122.38.14 ping statistics ---
>> 3 packets transmitted, 3 received, 0% packet loss, time 1998ms
>> rtt min/avg/max/mdev = 0.023/0.124/0.325/0.142 ms
>> *4) virtual machine is up*
>> quantum floatingip-list
>>
>> +--------------------------------------+------------------+---------------------+--------------------------------------+
>> | id                                   | fixed_ip_address |
>> floating_ip_address | port_id                              |
>>
>> +--------------------------------------+------------------+---------------------+--------------------------------------+
>> | 88398dd1-7256-49c7-b1ad-719903125501 | 202.122.38.15    |
>> 192.168.23.103      | ce7c1eff-afcb-4908-b399-0e6e07d2791e |
>>
>> +--------------------------------------+------------------+---------------------+--------------------------------------+
>> *       5) virtual machine eth0 is up*
>>  *         6)ssh or ping to vm is failed*
>>  root@networknode:/etc# ip netns exec
>> qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ping 202.122.38.15
>> PING 202.122.38.15 (202.122.38.15) 56(84) bytes of data.
>> From 202.122.38.1 icmp_seq=1 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=2 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=3 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=4 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=5 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=6 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=7 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=8 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=9 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=10 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=11 Destination Host Unreachable
>> From 202.122.38.1 icmp_seq=12 Destination Host Unreachable
>> ^C
>> --- 202.122.38.15 ping statistics ---
>> 14 packets transmitted, 0 received, +12 errors, 100% packet loss, time
>> 12999ms
>> pipe 4
>> root@networknode:/etc# ^C
>> root@networknode:/etc# ^C
>> root@networknode:/etc# ip netns exec
>> qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ssh root@202.122.38.15
>> ssh: connect to host 202.122.38.15 port 22: No route to host
>>
>> 2013-05-07
>> ------------------------------
>>  zengshan2008
>> **
>>
>> _______________________________________________
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>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
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>>
>>
>
>
> --
> Thanks
> Anil
>



-- 
Thanks
Anil