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Message #24016
Re: VM Issues on Grizzly Install on Ubuntu 12.04
Hi,
the ping error "connect: Network is unreachable" means a route could not be found.
The gateway 10.245.124.253 for the external subnet is not in the subnet CIDR 10.245.124.64/26.
So I guess a default route was not setup here:
netnode$ ip netns exec <router ns> route -n
You will need to create the subnet with a CIDR that includes the gateway ip - something like this:
quantum subnet-create <ext-net-id> 10.245.124.192/26 --gateway 10.245.124.253 --enable_dhcp False
Darragh.
----- Original Message -----
> From: Farhan Patwa <Farhan.Patwa@xxxxxxxx>
> To: Darragh OReilly <darragh.oreilly@xxxxxxxxx>; OpenStack Maillist <openstack@xxxxxxxxxxxxxxxxxxx>
> Cc:
> Sent: Tuesday, 28 May 2013, 19:52
> Subject: Re: [Openstack] VM Issues on Grizzly Install on Ubuntu 12.04
>
> Hi Darragh,
> Thanks a lot for your reply and suggestions.
> I am not able to ping the gateway ip from the namespace.
> Also eth0 is up but br-ex has unknown state?
> ###########################################################################
> #######################
>
> root@openstack-2:~# ip link
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen
> 1000
> link/ether 78:2b:cb:27:1f:c8 brd ff:ff:ff:ff:ff:ff
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen
> 1000
> link/ether 78:2b:cb:27:1f:c9 brd ff:ff:ff:ff:ff:ff
> 4: br-int: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether f2:3b:f7:1b:b0:46 brd ff:ff:ff:ff:ff:ff
> 6: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether 78:2b:cb:27:1f:c8 brd ff:ff:ff:ff:ff:ff
> 32: br-tun: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether 7e:6c:65:0f:c9:43 brd ff:ff:ff:ff:ff:ff
> ###########################################################################
> #######################
>
>
> Here is the result of the tcpdump as ping is being done:
>
> ###########################################################################
> #######################
>
> root@openstack-2:~# ip netns exec
> qrouter-32f35fb4-f9f1-4817-8818-fff832f73810 ping -c1 10.245.124.253
> connect: Network is unreachable
>
> root@openstack-2:~# tcpdump -nei eth0
> tcpdump: WARNING: eth0: no IPv4 address assigned
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
> 13:46:31.399055 00:26:88:7a:40:87 > 01:80:c2:00:00:00, 802.3, length 60:
> LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl 0x03: STP
> 802.1w, Rapid STP, Flags [Proposal], bridge-id
> 8000.00:26:88:7a:40:81.8205, length 43
> 13:46:33.259195 c2:35:07:e7:b0:10 > ff:ff:ff:ff:ff:ff, ethertype ARP
> (0x0806), length 60: Reply 10.245.0.10 is-at c2:35:07:e7:b0:10, length 46
> 13:46:33.313988 00:26:88:7a:40:87 > 01:80:c2:00:00:00, 802.3, length 60:
> LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl 0x03: STP
> 802.1w, Rapid STP, Flags [Proposal], bridge-id
> 8000.00:26:88:7a:40:81.8205, length 43
> ###########################################################################
> #######################
>
>
>
> The other information that you wanted is:
> ###########################################################################
> #######################
>
> root@openstack-2:~# ip link
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen
> 1000
> link/ether 78:2b:cb:27:1f:c8 brd ff:ff:ff:ff:ff:ff
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen
> 1000
> link/ether 78:2b:cb:27:1f:c9 brd ff:ff:ff:ff:ff:ff
> 4: br-int: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether f2:3b:f7:1b:b0:46 brd ff:ff:ff:ff:ff:ff
> 6: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether 78:2b:cb:27:1f:c8 brd ff:ff:ff:ff:ff:ff
> 32: br-tun: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN
> link/ether 7e:6c:65:0f:c9:43 brd ff:ff:ff:ff:ff:ff
> ###########################################################################
> #######################
>
> root@openstack-2:~# ip netns exec
> qrouter-32f35fb4-f9f1-4817-8818-fff832f73810 ip address
> 25: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> inet 127.0.0.1/8 scope host lo
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 39: qr-eebfe1cb-0f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UNKNOWN
> link/ether fa:16:3e:08:16:19 brd ff:ff:ff:ff:ff:ff
> inet 50.50.1.1/24 brd 50.50.1.255 scope global qr-eebfe1cb-0f
> inet6 fe80::f816:3eff:fe08:1619/64 scope link
> valid_lft forever preferred_lft forever
> 40: qg-910fef3b-cb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UNKNOWN
> link/ether fa:16:3e:e3:d5:fa brd ff:ff:ff:ff:ff:ff
> inet 10.245.124.65/26 brd 10.245.124.127 scope global qg-910fef3b-cb
> inet 10.245.124.67/32 brd 10.245.124.67 scope global qg-910fef3b-cb
> inet6 fe80::f816:3eff:fee3:d5fa/64 scope link
> valid_lft forever preferred_lft forever
> ###########################################################################
> #######################
>
> root@openstack-2:~# quantum net-show 37d27ee8-36a9-4cdb-9966-9b5571526b41
> +---------------------------+--------------------------------------+
> | Field | Value |
> +---------------------------+--------------------------------------+
> | admin_state_up | True |
> | id | 37d27ee8-36a9-4cdb-9966-9b5571526b41 |
> | name | ext_net |
> | provider:network_type | gre |
> | provider:physical_network | |
> | provider:segmentation_id | 1 |
> | router:external | True |
> | shared | True |
> | status | ACTIVE |
> | subnets | dd6f08f5-bfbd-4bdb-b9e4-c5ca065f3750 |
> | tenant_id | 2990df1bd46c4dda915b43558d591a2f |
> +---------------------------+--------------------------------------+
> ###########################################################################
> #######################
>
>
>
>
> root@openstack-2:~# quantum subnet-show
> dd6f08f5-bfbd-4bdb-b9e4-c5ca065f3750
> +------------------+-----------------------------------------------------+
> | Field | Value |
> +------------------+-----------------------------------------------------+
> | allocation_pools | {"start": "10.245.124.65",
> "end": "10.245.124.126"} |
> | cidr | 10.245.124.64/26 |
> | dns_nameservers | 10.245.0.10 |
> | enable_dhcp | False |
> | gateway_ip | 10.245.124.253 |
> | host_routes | |
> | id | dd6f08f5-bfbd-4bdb-b9e4-c5ca065f3750 |
> | ip_version | 4 |
> | name | |
> | network_id | 37d27ee8-36a9-4cdb-9966-9b5571526b41 |
> | tenant_id | 2990df1bd46c4dda915b43558d591a2f |
> +------------------+-----------------------------------------------------+
> ###########################################################################
> #######################
>
>
>
> Thanks,
>
> -Farhan.
>
>
>
>
>
> On 5/27/13 4:08 AM, "Darragh OReilly"
> <darragh.oreilly@xxxxxxxxx> wrote:
>
>>
>> I'd check the external network config first.
>>
>> You should be able to ping the external subnet's gateway from the router
>> namespace.
>> This gateway should correspond to some real external gateway/router.
>>
>> quantum subnet-show <ext sub id> -c gateway_ip # 10.245.124.1 ?
>> ip netns exec <router-ns> ping -c1 <ext sub gateway>
>>
>> If that is not working use tcpdump as you ping. Br-ex is using eth0, is
>> eth0 up? tcpdump -nei eth0
>>
>>
>> If you are still having problems, post the above output and the following:
>>
>> # network node
>> ip link
>> ip netns exec <router-ns> ip address
>>
>> quantum net-show <uuid of external net>
>> quantum subnet-show <uuid of external subnet>
>>
>>
>>> ________________________________
>>> From: Farhan Patwa <Farhan.Patwa@xxxxxxxx>
>>> To: OpenStack Maillist <openstack@xxxxxxxxxxxxxxxxxxx>
>>> Sent: Friday, 24 May 2013, 20:28
>>> Subject: [Openstack] VM Issues on Grizzly Install on Ubuntu 12.04
>>>
>>>
>>>
>>> Hello,
>>> I followed the following guide to install Grizzly release on 3-node
>>> setup.
>>> http://docs.openstack.org/grizzly/basic-install/apt/content/basic-install
>>> _intro.html
>>>
>>>
>>> I am stuck at my last issue with Quantum networking (at least that¹s
>>> what I think).
>>> The VM instance comes up and gets the private IP and the metadata.
>>> Also I have assigned the floating IP to it but am not able to ping
>>> either IP except when I use:
>>>
>>>
>>> ip netns exec qrouter-32f35fb4-f9f1-4817-8818-fff832f73810 ping
>>> 50.50.1.3 <- fixed IP private network
>>> ip netns exec qrouter-32f35fb4-f9f1-4817-8818-fff832f73810 ping
>>> 10.24.124.4 <- floating IP external network
>>>
>>>
>>> Based on that I think the security rules are okay
>>> The router is tied to the specified tenant and using gateway of the
>>> external network.
>>> I think the issue is routing table or maybe firewall related but not
>>> sure how to debug this.
>>>
>>>
>>> Some details of my environment are below.
>>> Any one have any words of wisdom/guidance?
>>>
>>>
>>> Thanks,
>>>
>>>
>>> -Farhan.
>>>
>>>
>>> Management Network: 192.168.0.0/24
>>> Data Network: 10.5.5.0/24
>>> External Network: 10.245.124.0/24
>>>
>>>
>>> Network Node: (192.168.0.2)
>>> ovs-vsctl show
>>> ea4fa894-5986-40f2-b10b-55eef2222408
>>> Bridge br-tun
>>> Port patch-int
>>> Interface patch-int
>>> type: patch
>>> options: {peer=patch-tun}
>>> Port "gre-1"
>>> Interface "gre-1"
>>> type: gre
>>> options: {in_key=flow, out_key=flow,
>>> remote_ip="192.168.0.3"}
>>> Port br-tun
>>> Interface br-tun
>>> type: internal
>>> Bridge br-int
>>> Port "tap3fca71a9-c8"
>>> tag: 4095
>>> Interface "tap3fca71a9-c8"
>>> type: internal
>>> Port patch-tun
>>> Interface patch-tun
>>> type: patch
>>> options: {peer=patch-int}
>>> Port "tap4b8a22a2-9c"
>>> tag: 4095
>>> Interface "tap4b8a22a2-9c"
>>> type: internal
>>> Port "tap633ed611-a9"
>>> tag: 1
>>> Interface "tap633ed611-a9"
>>> type: internal
>>> Port "qr-eebfe1cb-0f"
>>> tag: 1
>>> Interface "qr-eebfe1cb-0f"
>>> type: internal
>>> Port br-int
>>> Interface br-int
>>> type: internal
>>> Bridge br-ex
>>> Port "eth0"
>>> Interface "eth0"
>>> Port br-ex
>>> Interface br-ex
>>> type: internal
>>> Port "qg-910fef3b-cb"
>>> Interface "qg-910fef3b-cb"
>>> type: internal
>>> ovs_version: "1.4.0+build0"
>>>
>>>
>>> Kernel IP routing table
>>> Destination Gateway Genmask Flags Metric Ref Use
>>> Iface
>>> 0.0.0.0 192.168.0.253 0.0.0.0 UG 0 0 0
>>> eth1
>>> 10.5.5.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> eth1
>>> 10.245.124.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> br-ex
>>> 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> eth1
>>>
>>>
>>> Compute Node: (192.168.0.3)
>>> ovs-vsctl show
>>> f0fe78a5-dfd0-4f6b-87be-466dac0b4473
>>> Bridge br-tun
>>> Port patch-int
>>> Interface patch-int
>>> type: patch
>>> options: {peer=patch-tun}
>>> Port br-tun
>>> Interface br-tun
>>> type: internal
>>> Port "gre-2"
>>> Interface "gre-2"
>>> type: gre
>>> options: {in_key=flow, out_key=flow,
>>> remote_ip="192.168.0.2"}
>>> Bridge br-int
>>> Port patch-tun
>>> Interface patch-tun
>>> type: patch
>>> options: {peer=patch-int}
>>> Port br-int
>>> Interface br-int
>>> type: internal
>>> Port "tap6514a8cc-b2"
>>> tag: 1
>>> Interface "tap6514a8cc-b2"
>>> ovs_version: "1.4.0+build0"
>>>
>>>
>>> Kernel IP routing table
>>> Destination Gateway Genmask Flags Metric Ref Use
>>> Iface
>>> 0.0.0.0 192.168.0.253 0.0.0.0 UG 0 0 0
>>> eth1
>>> 10.5.5.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> eth1
>>> 10.245.124.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> eth0
>>> 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
>>> eth1
>>>
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~openstack
>>> Post to : openstack@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~openstack
>>> More help : https://help.launchpad.net/ListHelp
>>>
>>>
>>>
>>
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to : openstack@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~openstack
> More help : https://help.launchpad.net/ListHelp
>
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