openstack team mailing list archive

[Kevin Jackson <kevin@xxxxxxxxxxxxxxxxxxx>]

Hi Stephen,
This is what I get... (note change of namespace etc as this machine is a VM
that was recreated).

root@openstack:~# ip netns list
qdhcp-3f0a3d53-f3a4-4da8-a5e0-1a97b6e51424
qrouter-f26858db-3ae8-431b-86a7-edab80834586

root@openstack:~# ip netns exec
qrouter-f26858db-3ae8-431b-86a7-edab80834586 wget http://172.16.0.210:8775/
--2012-11-08 10:52:11--  http://172.16.0.210:8775/
Connecting to 172.16.0.210:8775... failed: No route to host.

root@openstack:~# ip netns exec
qrouter-f26858db-3ae8-431b-86a7-edab80834586 ip r
default via 172.16.1.254 dev qg-c396e75e-38
10.5.5.0/24 dev qr-031aafac-19  proto kernel  scope link  src 10.5.5.1
172.16.1.0/24 dev qg-c396e75e-38  proto kernel  scope link  src 172.16.1.10

So it is a problem between my router and the physical network... That
172.16.1.0/24 is an "ext-net" network created with an external router.
When I spin my instances up I use the 10.5.5.0/24 "int-net" network.

I followed the instructions to add a route from
http://docs.openstack.org/trunk/openstack-network/admin/content/adv_cfg_l3_agent_metadata.htmlbut
I don't immediately see how the route add helped here - but it has
raised an eyebrow.

The output of the port-list gave me 172.16.1.10 to use as the $ROUTER_GW_IP
- which is odd as that IP was set as my external floating range start IP.
Doing a traceroute to the 172.16.0.201 address from the router namespace
went via 172.16.1.10... so I've some things to play with for the time
being...

Thanks for your help so far.  Is the Guardian looking at OpenStack for any
projects (I'm from TMG)?

Cheers,
Kev


On 8 November 2012 10:49, Stephen Gran <stephen.gran@xxxxxxxxxxxxxx> wrote:

> **
> Hi,
>
>
> On Thu, 2012-11-08 at 10:02 +0000, Kevin Jackson wrote:
>
> Thanks for that - the namspace thing is starting to make sense.
> So I see this rule in there now:
>
> Chain quantum-l3-agent-PREROUTING (1 references)
>  pkts bytes target     prot opt in     out     source
> destination
>    62  3720 DNAT       tcp  --  *      *       0.0.0.0/0
> 169.254.169.254      tcp dpt:80 to:172.16.0.201:8775
>
> But I never see a connection being made when I spin up an instance.  The
> instance reports no route to host.
>
>
> It's unclear at this point if the problem is that your instance can't
> reach it's gateway (the quantum router), or if the quantum router can't
> reach the metadata server.
>
> try:
> ip netns exec qrouter-61245d6f-1195-4ca0-ba08-f0636f7d44c6 wget
> http://172.16.0.201:8775/
>
> To rule out the latter so you know where to concentrate your efforts.
>
>   --
> Stephen Gran
> Senior Systems Integrator - guardian.co.uk
>
>   Please consider the environment before printing this email.
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-- 
Kevin Jackson
@itarchitectkev