Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-18 Thread Thorsten Göllner
For all people with the same problem: I am using "arno-iptables-firewall" on the host. To make any guest "work" you have to open the forward chain for it: ~$ cat /etc/arno-iptables-firewall/custom-rules # Put any custom (iptables) rules here down below:

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-18 Thread Thorsten Göllner
Ups: I solved it now! On my kvm host the forward chain in iptables was set to "blocked". Changing it to "accept" solved the problem. Till this day I though, that the forward chain is only used in nat-environment. So I will take a deeper look in iptables now. Am

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-18 Thread Thorsten Göllner
Yes, it was another typo. Sorry for that. My kvm host is attached to a switch with another 4 servers in our rack (it is mesh solution düsseldorf and not hetzner). I tried the following as suggested by serge: On another server connected to my switch I started tcp

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-18 Thread Michael Zoet
Hi, Am 18.05.2012 10:57, schrieb Thorsten Göllner: > Sorry, my fault. I had a typo. The broadcst is configured correctly: > 113.203.209.191 > > Any other idea? yes but may be it is another typo: > >> >> ON THE GUEST: >> = >> ~$ ifconfig >> eth0 Link encap:Ethern

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-18 Thread Thorsten Göllner
Sorry, my fault. I had a typo. The broadcst is configured correctly: 113.203.209.191 Any other idea? Am 17.05.2012 00:51, schrieb Paul Schulz: Chech IP address and broadcast addess on br0. They don't appear to match. On May 17, 2012 12:38 AM

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-17 Thread Николай Федосов
try default-gateway for guest 113.203.209.163 16.05.2012 19:07, Thorsten Göllner написал: Hi, I installed 12.04 on my host and installed a 12.04 guest under kvm/libvirt. I setup a bridge as described here https://help.ubuntu.com/12.04/serverguide/network-configuration.html#bridging but my gu

Re: Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-16 Thread Serge Hallyn
The information you show looks good. What does /etc/resolv.conf on the guest show? Can you capture traffic using wireshark and see whether pings from the guest to the outside world make it there? -serge -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailm

Ubuntu 12.04 / kvm / libvirt / problem with network bridge br0

2012-05-16 Thread Thorsten Göllner
Hi, I installed 12.04 on my host and installed a 12.04 guest under kvm/libvirt. I setup a bridge as described here https://help.ubuntu.com/12.04/serverguide/network-configuration.html#bridging but my guest can not reach the internet nor other host within my local net