On 02/08/2012 22:45, Scott Silva wrote: > <snip> >> Nope.... >> >> Work only .49 and .50 >> >> I bought 8 public IP-s ... so 8 IPs have to get work. >> In the hosting specification this IPs is usable with xxx.xxx.xxx.48-55 >> with subnet mask 255.255.255.255 with no gateway. >> >> As I sad, works perfectly with this command (8 times, of course :) ): >> #ifconfig eth:(0 to 7) xxx.xxx.xxx.(48-55) netmask 255.255.255.255 >> >> Thanks >> >> Levi >> > 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... > > http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Thank you all for your time ... But I have another question: Why is a difference in setting up with icfg-eth0:0 and ifconfig ? As I sad, setting up all 8 IP-s with ifconfig works perfectly. Why if I specify explicitly the subnet mask in ifcfg-eth0:0 then appear other? Thanks Levi