centos-bounces@centos.org schrieb am 23.04.2015 14:27:41:
Von: Marcelo Ricardo Leitner marcelo.leitner@gmail.com An: CentOS mailing list centos@centos.org Datum: 23.04.2015 14:28 Betreff: Re: [CentOS] Probs with Routing (CentOS7 , KVM) Gesendet von: centos-bounces@centos.org
Hi,
On 23-04-2015 08:50, Andreas.Reschke@mahle.com wrote:
Hi there, I've installed a new KVM-Server. The routing in all instances are only working after "arp -s ip_of_router mac_of_router"
Server: CentOS7, KVM Clients: CentOS6 and Fedora 21
What going wrong?
Your report is not very clear. Is it just the routing from the guests that is not working? Because if you have to use that command, all routing from the server itself would also be jammed. And in that case, I
would suggest doing a traffic capture on the bridge, bonding and its slaves if applicable to see where it's breaking. You may also consider switching to bonding Active/Backup mode (if not already) for troubleshooting.
Marcelo
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Hello Marcelo, I'm using Bonding Mode: IEEE 802.3ad Dynamic link aggregation. With tcpdump I've seen, that "ping to router" is going through the interfaces (br0, bond0, vmnet0) but the answer is lost.
Mit freundlichen Grüßen / Kind regards
Mr. Andreas Reschke MAHLE International GmbH Unix/Linux-Administration (FIG5.1)
Pragstr. 26 - 46, 70376 Stuttgart, Germany Phone: +49 711 501-47598, Fax: +49 711 501-44 47598 Mobile: 0173-3197397 andreas.reschke@mahle.com, http://www.mahle.com
MAHLE International GmbH, Location: Stuttgart, Registered: Amtsgericht Stuttgart, HRB 16413 Management Board: Prof. Dr. Heinz K. Junker, Arnd Franz, Michael Frick, Michael Glowatzki