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From "Kelcey Damage \(BBITS\)" <>
Subject RE: SSVM Network Configuration
Date Thu, 04 Oct 2012 21:40:37 GMT
Awesome, I learnt something here too.

Glad it's working for you now.

Infrastructure Systems Architect 

address: 55 East 7th Ave, Vancouver, BC, V5T 1M4
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skype: kelcey.damage 

-----Original Message-----
From: John Burwell [] 
Sent: Thursday, October 04, 2012 2:39 PM
Subject: Re: SSVM Network Configuration


You were correct on the rp_filter issue.  Once disabled, the SSVM was able to connect outbound
to S3, as well as, any host reachable from devcloud.  I noticed that rp_filter is disabled
in sysctl.conf yet it is somehow being enabled at runtime.  Is this behavior intended?


On Oct 4, 2012, at 1:07 PM, Ahmad Emneina <> wrote:

> On 10/4/12 9:16 AM, "John Burwell" <> wrote:
>> Kelcey,
>> I am a bit confused about how secstorage.allowed.internal.sites is 
>> used which stems to lack of knowledge regarding the devcloud network 
>> configuration.  Also, is there documentation available for setting up 
>> such a NAT?
>> As a point of clarification to my original question, I am working in 
>> the devcloud environment (using the OVA downloaded from the wiki) 
>> where I need to get the SSVM to connect to S3 or to a local 
>> VirtualBox VM running an S3-compatible object store.  Thus far, I 
>> have been unable to get devcloud to bring up a second NIC on a 
>> host-only network.  I have attempted to setup an advanced network configuration as
>> Physical Network with VLAN isolation method Management Server: 
>> -> Gateway: Storage Network: 
>> -> Gateway on VLAN0 Management Network: 
>> -> Gateway Public Network: 
>> -> VLAN0
> The issue that gets created here is you get system vm's that are 
> multi-homed. Your system vm's get a nic (leg) on each network... But 
> that network is one and the same. Why this is an issue is rp_filter is 
> enabled by default on the system vm's, message comes in on one of 
> those nics, but it's default route out is another nic... Thus blocking the response.
> Ideally you'd use a basic zone for this kind of configuration, or else 
> you'll end up having to log into the system vm's every time a new one 
> is spawned and disabling rp_filter for the nics. You might want to 
> test this, by logging in and disabling rp_filter on the nics and see 
> if things start working as expected.
>> Obviously, my network configuration is incorrect, but I have the 
>> reached the limits of my CloudStack and Xen knowledge to identify the problem(s).
>> Given this information, what is the best way to give the SSVM access 
>> to the Internet and/or a VirtualBox host-only network?
>> Thank you for your help,
>> -John
>> On Oct 3, 2012, at 10:39 PM, "Kelceydamage@bbits" <> wrote:
>>> The the secondary storage VM can be NATed to from any network 
>>> router, however the console proxy does not work over NAT.
>>> Sent from my iPhone
>>> On Oct 3, 2012, at 7:32 PM, Edison Su <> wrote:
>>>> System vm will have 4 nics, eth2 is on the public network, eth1 is 
>>>> the
>>>> private(mgt) network.
>>>> The IP address of eth2 is got from pod configuration: in one of IP 
>>>> address range ["startip", "endip"] in createPod API.
>>>> The IP address of eth1 is got from guest network, if it's basic 
>>>> network mode, this IP range is configured by createVlanIpRanges API 
>>>> SSVM will connect to mgt server through eth1(mgt server's ip 
>>>> address is configured to route through eth1), and download template from
>>>> What's your specific issue about network configuration?
>>>>> -----Original Message-----
>>>>> From: John Burwell []
>>>>> Sent: Wednesday, October 03, 2012 7:11 PM
>>>>> To:
>>>>> Subject: SSVM Network Configuration
>>>>> All,
>>>>> How do you configure networking to permit the SSVM to connect to 
>>>>> the public Internet or another internal network?  I have been 
>>>>> trying to understand the network configuration from the 
>>>>> documentation, but am missing something in my configuration attempt.
>>>>> Thank you for your assistance,
>>>>> -John
> --
> Æ

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