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From "Kelceydamage@bbits" <kel...@bbits.ca>
Subject Re: VMs can not access to Internet via Public IP ???
Date Sun, 16 Sep 2012 04:31:53 GMT
If your vnets are tied to the correct bridges/interfaces for all VMs involved, then my money
is on ARP/firewall.

Move all the VMs onto a single host, including and VRs.

Then attempt basic network troubleshooting, starting from host to perimeter router, followed
by guest to VR (if applicable) and VR to perimeter router (if applicable).

Hope this helps.

Sent from my iPhone

On Sep 15, 2012, at 8:46 PM, Nguyễn Đình Việt <VietNd4@viettel.com.vn> wrote:

> Hi guy, 
> This is result of 'ip route show' command: default via 192.168.2.1 dev em1, that right.
I think bridging works right because I can ping from guest network (10.1.1.0/24) to pod range
(172.15.100.0/24). 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 [mailto:shadowsor@gmail.com] 
> Sent: Sunday, September 16, 2012 3:29 AM
> To: cloudstack-dev@incubator.apache.org
> 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" <VietNd4@viettel.com.vn> 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 [mailto:vijayendra.bhamidipati@citrix.com]
>> Sent: Sunday, September 16, 2012 2:41 AM
>> To: cloudstack-dev@incubator.apache.org
>> 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: VietNd4@viettel.com.vn [mailto:VietNd4@viettel.com.vn]
>> Sent: Saturday, September 15, 2012 12:11 PM
>> To: cloudstack-dev@incubator.apache.org
>> Subject: VMs can not access to Internet via Public IP ???
>> 
>> 
>> I deploy CS model follow as:
>> 
>> 
>> 1.      MS: 2 NIC card: NIC 1: 192.168.2.100/24 gw 192.168.2.1, NIC 2:
>> 172.15.100.100/24 gw 172.15.100.1. NIC 1 is can connect to Ineternet.
>> 
>> 2.      Node : 1 NIC with IP 172.15.100.101/24 with XCP. Node connect to
>> MS’s NIC 2 via a switch.
>> 
>> 3.      NFS server: 1 NIC with IP 172.15.100.102/24 and connect to MS and
>> node via a switch.
>> 
>> 4.      Public network 192.168.2.0/24.
>> 
>> 5.      Pod ip range: 172.15.100.0/24
>> 
>> 6.      Storage traffic: 172.15.0/24
>> 
>> 7.      Guest range: 10.1.1.0/24
>> 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 172.15.100.0/24 network. I try ssh
>> to SSVM, VR, CPVM and use ping command to 8.8.8.8 or 192.168.2.100 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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