On 08/03/2012 12:20 PM, Birta Levente wrote: > On 02/08/2012 22:54, John R Pierce wrote: >> On 08/02/12 12:45 PM, Scott Silva wrote: >>> It doesn't work that way... You may think you bought 8 ip's, but you can only >>> pass traffic on 6... That is how it works... You buy 16, and only 14 work. The >>> first and last address are as Johnny said... >> >> I've also seen DSL networks like this where those extra IPs are bridged >> not routed. in these cases, you use the same gateway as the 'main' IP, >> but usually the main IP has a /24 or whatever mask that encompasses ALL >> the IPs. >> >> regardless, the OP should contact the ISP and find out what the mask and >> gateway are for the extra IPs. >> >> > It's a bug in centos 6 > > http://bugs.centos.org/view.php?id=5391 > > PREFIX configured in ifcfg-eth0 is overrule the subnet mask in aliases. > > Solution: removed PREFIX from ifcfg-eth0 > I'm not surprised and I'm really beginning to develop an abject hate for all things networking in Fedora/RHEL land. I's kludges upon kludges to accommodate new ways of doing things while keeping backwards compatibility within a framework of stitched together shell scripts. Regards, Dennis