Displaying 20 results from an estimated 8000 matches similar to: "KVM/NAT help requested"
2008 Jun 13
2
Compiling from source and networking problem
Hey,
I was originally asking questions on xen-users but no one seems to have any
idea about this so I figured I''d try this list.
I compiled Xen from source (3.2 testing) on an Intel machine running Fedora
Core 8 and have discovered that my guest (Windows Vista) does not have a
network connection.
Looking at various online documentation and a machine that does work, I
guessed that I
2011 May 06
0
kvm libvirt migration problem
Hi everyone:
I am new here
I am using kvm and libvirt on my Dell server. Now i am trying to migrate one
virtual machine from a physical server to another. However, I failed
everytime.
In virsh on physicalServer1, I typed:
virsh # migrate virtualmachine1 qemu+ssh://username at physicalServer2/system
error: operation failed: migration to 'tcp: physicalServer2:49163' failed:
migration
2013 Mar 28
0
virsh migrate ---no route to host
Hi,
I am trying to migrate a guest domain from one node to another. I've
tried several options of the virsh migrate command, but in vain. It
seems to be a networking issue. I wanted to make sure that my setup is
correct and that I am not missing anything.
I've issued the below command on the source node (n0):
[user at n0 ~]$ virsh --connect qemu:///system migrate --verbose
2013 Mar 28
0
virsh migrate --no route to host
Hi,
I am trying to migrate a guest domain from one node to another.
I've tried several options of the virsh migrate command, but in vain.
It seems to be a networking issue. I wanted to make sure that my setup is
correct and that I am not missing anything.
I've issued the below command on the source node (n0):
[user at n0 ~]$ virsh --connect qemu:///system migrate --verbose
2011 Apr 12
0
Cannot samba mount a remote windows disk
Hi,
I would like to mount a remote windows disk as samba share drive but unable
to do so on my host node. I tried it on my instances and it works so i am
suspecting that perhaps firewall could be blocking it.
Right now i see that the iptables for the host node with KVM installed :
iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp --
2010 Oct 29
2
How to access one machine behind iptables, on different subnet?
Hi all,
I wonder if someone can help me with this: The setup is as follows:
192.168.1.254 - wireless ADSL modem, with DHCP pool on 192.168.100 - 192.168.200
192.168.1.250 - Linux firewall RED interface
192.168.2.250 - Linux firewall GREEN interface.
There are some normal LAN clients behind the Linux firewall's GREEN
interface, which can all access each other's shared services and also
2011 Feb 10
0
(o2net, 6301, 0):o2net_connect_expired:1664 ERROR: no connection established with node 1 after 60.0 seconds, giving up and returning errors.
Hello,
I am installing Two Node cluster when I automount the file systems I am getting o2net_connect_expired error and it is not mounting the cluster filesystems if I mount the cluster file systems manually as mount -a it is mounting the file systems without any issues.
1.If I bring Node1 up with Node2 to down cluster file system is automounting fine without any issues.
2.I checked the
2015 Nov 19
0
Issues with libvirt virtual networking
Hello all,
I am having issues getting my virtual network to work correctly. As of
current, I have set up a virtual network with virt-manager, using the
routed mode to forward network traffic. I have found guests can
see/ping themselves, the host's virtual IP and the host's real IP, but
nothing else. Guests fail to see any other device on the real network
or the internet.
My host is Arch
2010 Jul 31
1
Arp Flip Flops make machine inaccessible.
CentOS 5.5 Xen "standard" Xen Installation.
I have two nics. I just put the second one to DHCP and modified the
ifcfg-et01 and so far I am holding, but I am not confident. Prior they
were sequential IP Addrs on same subnet.
arpwatch has indicated flip flips. I can find no rhyme or reason to
predict them. I know I missed I must have missed a step somewhere.
I want to keep the
2010 Aug 20
0
libvirt and Bridging
Hello all,
Basically my problem is how can i access a virtual machine from local
network. I am able to do so from the host PC put not from other PC's
on the same network.
here is my what i did so far
(http://wiki.libvirt.org/page/Networking#NAT_forwarding_.28aka_.22virtual_networks.22.29)
cat '/etc/libvirt/qemu/networks/default.xml'
<network>
2006 Aug 26
0
FC5 -- Xen 3.0.2 -- iptables with dom0 and domU
Situation:
Running a simple UDP client/server program where the client on one domU on
one computer sends echo packets to another domU on another computer,
server sends echoes back. They do this on a specified port (will use any
port between 5000-6000). This program works on non-Xen machines in
various environments, Linux and Solaris. Program just hangs on the domUs.
I believe I need help with
2018 Aug 30
0
Re: Setting up port forwarding to guests on nat network
On Wed, Aug 29, 2018 at 06:31:41PM -0400, Rhys Ferris wrote:
>Hello all,
>
>I’m currently trying to figure out how to forward ports to guests that are on a NAT Network. I have followed the directions on https://wiki.libvirt.org/page/Networking under the “Forwarding Incoming Connections” Section and get connection refused when attempting to connect.
>
>System: Ubuntu Server 18.04.1
2012 Mar 28
0
ARP entry intermittently is incorrect for guest - lose connectivity
I've run into a problem on my KVM host where a single guest will be
unreachable to other guests on the same host. This host has 2 bridged
devices and guests assigned to each have the same issue. I've noticed
that when I can't reach the problematic guest, the ARP entry for that
system is incorrect. This issue seems to only be a problem about 75%
of the time when making connections
2011 Jul 17
0
IPtables and Libvirt
Running CentOS 6 I have noticed that Libvirt will automatically configure
IPtables once a VM is using the built in NAT , or "default" network. How do
I modify the IPtable rules without breaking libvirt's ability to configure
these rules?
This is the firewall settings on a fresh install with no VMs using virbr0...
--------------------------
Table: filter
Chain INPUT (policy ACCEPT)
2018 Aug 30
1
Re: Setting up port forwarding to guests on nat network
Thanks for the reply!
output:
net.ipv4.ip_forward = 1
What do you mean "The out:any and"
Anywhere else I can look as to why the connection isn't going?
Do I need some kind of listener at that port on the host? I'm not even
seeing the packet count on the prerouting chain increase when the
connection attempts are made.
On Thu, Aug 30, 2018 at 8:58 AM Martin Kletzander
2018 Aug 29
2
Setting up port forwarding to guests on nat network
Hello all,
I’m currently trying to figure out how to forward ports to guests that are on a NAT Network. I have followed the directions on https://wiki.libvirt.org/page/Networking under the “Forwarding Incoming Connections” Section and get connection refused when attempting to connect.
System: Ubuntu Server 18.04.1
Virsh / LibVirtd Version: 4.0.0
Here’s the contents of /etc/libvirt/hooks/qemu
2013 Jul 07
3
Firewall will not disable - stumped!
very perplexed here - I need to turn off iptables. Ive tried
service iptables save
service iptables stop
chkconfig iptables off
service ip6tables save
service ip6tables stop
chkconfig ip6tables off
edited
OPGX280 ~ # cat /etc/sysconfig/system-config-firewall
# Configuration file for system-config-firewall
--disabled
--service=ssh
OPGX280 ~ :( # cat /etc/selinux/config
SELINUX=disabled
2006 Apr 09
3
Conntrack, nat and multipath - what is wrong here?
I have a gentoo 2.6.14 box with 4 nics, LAN/DMZ/PUB1/PUB2
LAN and DMZ have a 1918 /22 each, PUB1 and PUB2 have a /29 each of which 5 ips
are assigned.
Using the mangle table, I give all packets a mark (according to local
policies) in the range 1-10. Using ip rule, i pass marks 1-5 through the pub1
route table, and marks 6-10 through the pub2 routing table. Using the nat
table, I SNAT to one
2011 Sep 06
2
[Bug 747] New: IPtables marked packets not being inpsected in NAT table.
http://bugzilla.netfilter.org/show_bug.cgi?id=747
Summary: IPtables marked packets not being inpsected in NAT
table.
Product: iptables
Version: CVS (please indicate timestamp)
Platform: All
OS/Version: All
Status: NEW
Severity: major
Priority: P3
Component: iptables
AssignedTo:
2010 Jun 30
0
FYI: a short guide to libvirt & network filtering iptables/ebtables use
I just wrote this to assist some Red Hat folks understanding
what libvirt does with iptables, and thought it is useful info
for the whole libvirt community. When I have time I'll adjust
this content so that it can fit into the website in relevant
pages/places.
Firewall / network filtering in libvirt
=======================================
There are three pieces of libvirt