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Posted to users@cloudstack.apache.org by Warren Nicholson <wa...@nfinausa.com> on 2013/04/28 00:07:23 UTC

Static NAT issue

Running Cloudstack 3.02, and Xenserver 6.02 hypervisors.

 

My Centos 6.4 instances can't ping the internet.

 

I configured a static NAT and attached it to my VMs.

All firewalls are disabled.  I can ping both sides of the 

Router from my VMs.

 

My VMs are getting the proper IP from the Router,

no matter which hypervisor I run it on, so this means 

my network switch is configured properly to handle

the DCHP for the tagged VLAN's.

 

I can ssh into the router and ping the internet and I 

can ping all of the guest VMs.

 

I can ping the public side of the router from my LAN,

and the router can ping everything on my LAN. 

 

It appears, the Cloudstack Router ain't routing...

 

Suggestions?

 

Warren

 

 


Re: Static NAT issue

Posted by Ahmad Emneina <ae...@gmail.com>.
This is pretty odd behavior. I suggest  you run tcpdump on various parts of
the flow:
1. within the virtual router. there should be two interfaces to focus on...
public and guest.
2. within the guest
3. on the hypervisor... you'll need to figure out the bridge the inside
network where guest to vr traffic is being passed.

see where the data fails to pass. let us know where it gets hung up.


On Sat, Apr 27, 2013 at 3:07 PM, Warren Nicholson <
warren.nicholson@nfinausa.com> wrote:

> Running Cloudstack 3.02, and Xenserver 6.02 hypervisors.
>
>
>
> My Centos 6.4 instances can't ping the internet.
>
>
>
> I configured a static NAT and attached it to my VMs.
>
> All firewalls are disabled.  I can ping both sides of the
>
> Router from my VMs.
>
>
>
> My VMs are getting the proper IP from the Router,
>
> no matter which hypervisor I run it on, so this means
>
> my network switch is configured properly to handle
>
> the DCHP for the tagged VLAN's.
>
>
>
> I can ssh into the router and ping the internet and I
>
> can ping all of the guest VMs.
>
>
>
> I can ping the public side of the router from my LAN,
>
> and the router can ping everything on my LAN.
>
>
>
> It appears, the Cloudstack Router ain't routing...
>
>
>
> Suggestions?
>
>
>
> Warren
>
>
>
>
>
>