The setup works well for different kernel. So it is not a problem with the configuration ;) Thanks for all help. Best regards, R. 2012/7/4 Gordon Messmer <yinyang at eburg.com>: > On 06/25/2012 05:22 AM, Rafał Radecki wrote: >> Do you see an error in my configuration? Why is 10.20.0.108 not available? > > I don't have a lot of managed switches around to do extensive testing. > The closest test I can do is on 5.8 with VLAN 2 and different IPs. > Based on that, everything seems like it should work. Since you're able > to set up the addresses on the interface without a bridge, the > likelihood of a driver problem seems fairly low. Did you ever send the > output of "brctl show"? You should definitely be able to run tcpdump on > eth0.20 and see any traffic on that interface. You said that you saw > none when you tried to ping the Linux host from the network. What about > the reverse? Do you see data go out eth0.20 when you try to ping an > address in the attached subnet from the Linux host? > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos