FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.


» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > CentOS > CentOS

 
 
LinkBack Thread Tools
 
Old 02-07-2012, 03:39 AM
Gordon Messmer
 
Default my notes on bond, bridge, network, kvm, host and virtual so far

On 02/06/2012 07:28 PM, Bob Hoffman wrote:
> I put this page together just so I won't spam the board anymore begging
> for help..lol
> http://bobhoffman.com/vmissue.html

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html

Your page doesn't include your sysctl.conf, so the information available
makes it look like your guests are subject to firewall rules on the VM
host, none of which allow access to them.

Have you tried disabling netfilter on the bridge device, as documented
above?

If that doesn't help, I'm curious about the problem. Contact me off list.
_______________________________________________
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
 
Old 02-07-2012, 04:56 AM
DV
 
Default my notes on bond, bridge, network, kvm, host and virtual so far

On Mon, Feb 6, 2012 at 23:22, Patrick Lists
<centos-list@puzzled.xs4all.nl> wrote:
> On 07-02-12 04:28, Bob Hoffman wrote:
>> I put this page together just so I won't spam the board anymore begging
>> for help..lol
>> http://bobhoffman.com/vmissue.html
>
> According to http://wiki.centos.org/TipsAndTricks/BondingInterfaces
> there should not be a HWADDR=<mac_address> in ifcfg-eth0.
>
> Regards,
> Patrick

I second that.

What may be happening is that the VM host, which is explicitly set to
use br0 as it's main host interface, works fine when bond0
communicates using the eth0 interface, and maintains the connection
while eth0's MAC is active for br0 ip address, but at some point
outbound traffic from the VM host ceases and the MAC address for eth0
times out of br0. At that point inbound traffic can go to whichever
interface answers first in bond0, and if it is eth1, traffic will time
out since the main host is probably only using eth0 and not the br0 as
its own interface. I would be curious to know what the main hosts
routing table has in it, if it is using eth0 or br0 as it's
communication interface.

try these:

# route -n
# ip route show table all
_______________________________________________
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
 

Thread Tools




All times are GMT. The time now is 05:46 AM.

VBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright 2007 - 2008, www.linux-archive.org