[CentOS] need help

[John R Pierce]

cahit Eyigünlü wrote:
> Fedora 12 designed automatically and i need same settings because 
> centos is in the same machine with fedora under vmware ...
> the only one difference is fedora's ip address 78.159.97.xx and centos 
> is 188.72.255.189 everything else same


why so many different network numbers on the same physical/virtual LAN 
segment ?     
and why doesn't each network have its own in-network gateway address 
?    setting it up this way is rather unconventional to say the least.