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From Nguyễn Đình Việt <>
Subject RE: VMs can not access to Internet via Public IP ???
Date Sat, 15 Sep 2012 20:08:13 GMT
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
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.


From: []
Sent: Saturday, September 15, 2012 12:11 PM
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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