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From Nguyễn Đình Việt <>
Subject RE: VMs can not access to Internet via Public IP ???
Date Sun, 16 Sep 2012 03:46:34 GMT
Hi guy, 
This is result of 'ip route show' command: default via dev em1, that right. I
think bridging works right because I can ping from guest network ( to pod range
( Any problem in my  network diagrams ?
MS server has 2 NIC card with connectivity diagrams:  Node, NFS server (NIC 1)  -------->Switch------>NIC
2 (Management Server) NIC 1 ------> Internet.

Is there something wrong with the diagram like this.Any attention when configured, create
a zone with this scheme?

Thanks & Best Regards.

-----Original Message-----
From: Marcus Sorensen [] 
Sent: Sunday, September 16, 2012 3:29 AM
Subject: RE: VMs can not access to Internet via Public IP ???

Sounds like a routing issue. I would start on the VR and do an 'ip route
show', then look for default gateway and try to ping that. I imagine you
will see the issue there, either wrong IP/network, no route, or no
connectivity (bridging not working).
On Sep 15, 2012 2:07 PM, "Nguyễn Đình Việt" <> wrote:

> Hi guy
> I don't think so. I use isolated network with source NAT. Default rule, VR
> block all traffic from outside and permit all from VMs to outside. If the
> cause is port forwarding rule, I will connect  to SSVM, CPVM, VR via their
> Public IP.  I try setup CS model with only 1 NIC on MS server and it work
> fine (that mean I can ping to public IP of SSVM, CPVM, VR and from VMs can
> connect to outside, internet). I need more help.
> -----Original Message-----
> From: Vijayendra Bhamidipati []
> Sent: Sunday, September 16, 2012 2:41 AM
> To:
> Subject: RE: VMs can not access to Internet via Public IP ???
> Hi Dinh,
> You would need to set up port forwarding rules for the guest VMs to enable
> them send outbound traffic. In the CS GUI, go to Networks -> click on a
> network that your VM is associated with -> View IP addresses -> click on
> the IP you acquired for the VM -> Configuration -> click on view all in
> Port Forwarding -> choose the protocol and define the applicable port
> ranges and/or other values, and associate this rule with a VM. In case of
> ping, use -1 for both the icmp type and code if you want to enable the rule
> for all code+type combinations.
> Regards,
> Vijay
> From: []
> Sent: Saturday, September 15, 2012 12:11 PM
> To:
> Subject: VMs can not access to Internet via Public IP ???
> I deploy CS model follow as:
> 1.      MS: 2 NIC card: NIC 1: gw, NIC 2:
> gw NIC 1 is can connect to Ineternet.
> 2.      Node : 1 NIC with IP with XCP. Node connect to
> MS’s NIC 2 via a switch.
> 3.      NFS server: 1 NIC with IP and connect to MS and
> node via a switch.
> 4.      Public network
> 5.      Pod ip range:
> 6.      Storage traffic: 172.15.0/24
> 7.      Guest range:
> I create Zone and VMs OK. But I have a problem. VMs, SSVM, VR, CPVM can
> not connect to outside (MS NIC 1 IP, internet) via Public IP.?????  They
> can connect to machines that belong to network. I try ssh
> to SSVM, VR, CPVM and use ping command to or and
> tcpdump on Node server but have not any packet send through Node’s NIC.
>  Can u help me .
> Thanks and bestregard.

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