Hello,
Thanks for your replies. Just another question, once the virbr1 is
created, how can I attach VMs to it? I mean, how the virtual network
template should look like?
Best,
Javi
On 25/07/12 21:38, Ruben S. Montero wrote:
Hi
I also suggest to take a look to the virtual router appliance. It is a
very simple way to provide NATing along with other network services
such as DHCP, DNS... to a VLAN.
All the information at
http://opennebula.org/documentation:rel3.6:router
Cheers
Ruben
On Wed, Jul 25, 2012 at 7:21 PM, Shankhadeep Shome
<[email protected] <mailto:[email protected]>> wrote:
*whoops! in this case ib0, but the virt-manager utility will
create this for your interface, just remember not to use dhcp.*
*
*
*
iptables -t nat -A POSTROUTING -s 172.16.100.128/25
<http://172.16.100.128/25> -o ib0 -j SNAT --to-source 192.168.10.10*
On Wed, Jul 25, 2012 at 1:19 PM, Shankhadeep Shome
<[email protected] <mailto:[email protected]>> wrote:
Yes, you need to create a regular bridge device and attach it
to a tap device, you can use virt-manager to create this for
you, the tap device will be disabled. You will also need an
iptables rule to nat packets to/from the bridge, again the
virt-manager can do this for you.
[vnics] -- [bridge] -- [disabled tap]
Here is a bridge definition for infiniband devices that cannot
use mac bridges, created by virt-manager
Its creating a 172.16.100.128/25 <http://172.16.100.128/25>
network, note. do not configure a dhcp server if you want
opennebula to track your IPs, all you need to do is give open
nebula the iprange 172.16.100.130-254 to manage and configure
your contextualization appropriately.
<network>
<name>ibnat0</name>
<uuid>4d7e9211-3a32-8b77-90a6-3b45c8d98ddb</uuid>
<bridge name='virbr1' stp='on' delay='0' />
<mac address='52:54:00:8B:34:92'/>
<ip address='172.16.100.129' netmask='255.255.255.128'>
</ip>
</network>
ifconfig -a output, this is what it looks like
ib0 Link encap:UNSPEC HWaddr
80-00-00-48-FE-80-00-00-00-00-00-00-00-00-00-00
inet addr:192.168.10.10 Bcast:192.168.10.255 Mask:255.255.255.0
inet6 addr: fe80::208:f104:39a:63b1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:65520 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:5 overruns:0 carrier:0
collisions:0 txqueuelen:256
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
virbr1 Link encap:Ethernet HWaddr 52:54:00:8b:34:92
inet addr:172.16.100.129 Bcast:172.16.100.255
Mask:255.255.255.128
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
virbr1-nic Link encap:Ethernet HWaddr 52:54:00:8b:34:92
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
The nat rule will be something like this..
*iptables -t nat -A POSTROUTING -s 172.16.100.128/25
<http://172.16.100.128/25> -o eth0 -j SNAT
--to-source 192.168.10.10*
iptables -v -L -t nat (And here is the output of that rule)
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
0 0 SNAT all -- any eth0 172.16.100.128/25
<http://172.16.100.128/25> anywhere to:192.168.10.10
On Wed, Jul 25, 2012 at 6:24 AM, Javier Alvarez
<[email protected] <mailto:[email protected]>> wrote:
Hello,
I would like to know if OpenNebula supports the use of NAT
forwarding as explained in the networking page of the
libvirt's wiki:
http://wiki.libvirt.org/page/Networking#NAT_forwarding_.28aka_.22virtual_networks.22.29
Thanks,
Javi
--
Javier Álvarez Cid-Fuentes
Grid Computing and Clusters Group
Barcelona Supercomputing Center (BSC-CNS)
Tel.(+34) 93 413 72 46 <tel:%28%2B34%29%2093%20413%2072%2046>
WARNING / LEGAL TEXT: This message is intended only for
the use of the individual or entity to which it is
addressed and may contain information which is privileged,
confidential, proprietary, or exempt from disclosure under
applicable law. If you are not the intended recipient or
the person responsible for delivering the message to the
intended recipient, you are strictly prohibited from
disclosing, distributing, copying, or in any way using
this message. If you have received this communication in
error, please notify the sender and destroy and delete any
copies you may have received.
http://www.bsc.es/disclaimer
<http://www.bsc.es/disclaimer.htm>
_______________________________________________
Users mailing list
[email protected] <mailto:[email protected]>
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
_______________________________________________
Users mailing list
[email protected] <mailto:[email protected]>
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
--
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - The Open Source Solution for Data Center Virtualization
www.OpenNebula.org <http://www.OpenNebula.org> |
[email protected] <mailto:[email protected]> | @OpenNebula
--
Javier Álvarez Cid-Fuentes
Grid Computing and Clusters Group
Barcelona Supercomputing Center (BSC-CNS)
Tel. (+34) 93 413 72 46
WARNING / LEGAL TEXT: This message is intended only for the use of the
individual or entity to which it is addressed and may contain
information which is privileged, confidential, proprietary, or exempt
from disclosure under applicable law. If you are not the intended
recipient or the person responsible for delivering the message to the
intended recipient, you are strictly prohibited from disclosing,
distributing, copying, or in any way using this message. If you have
received this communication in error, please notify the sender and
destroy and delete any copies you may have received.
http://www.bsc.es/disclaimer
_______________________________________________
Users mailing list
[email protected]
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
