Specifically the output of "ip r" and "ip a" would be useful both with the working and non-working kernel for comparison. On 09/03/2015 10:52 PM, Jim Perrin wrote: > Can you provide a bit more detail? What hardware are you using, what > network driver is in use, etc.. > > On 09/03/2015 02:52 PM, John Tebbe wrote: >> After the upgrade, I was encountering a "network unreachable" error. >> This happens on kernel versions -> 2.6.32-573.1 .1-el6.x86_64 and >> 2.6.32-573.3.1-el6.x86_64. If I revert back to >> 2.6.32.504.30.3.el6.x86_64, the problem goes away. I've been searching >> frantically without much luck. I have found references to the same error >> on bugs.centos.org but no resolution as of yet. Has anyone else >> encountered this? If so, what did you do to resolve it? >> >> TIA, >> John >> >