Multiple IP with one nic

Michael H. Warfield mhw at wittsend.com
Sun Nov 20 05:03:56 UTC 2005


On Sat, 2005-11-19 at 22:25 -0600, Jonathan Carpenter wrote:
> I have several servers that are not doing to much and I need to
> combine them in to one. Is there anyway that I can give one server
> multiple IP's and hostnames? So the network will see this one server
> as several?

	That's reasonably simple using alias interfaces on IPv4 (IPv6 you
simply add more addresses to the same interface).

	Use interfaces like eth0:0, eth0:1 and you can add more addresses to
eth0.  You can also create an ifcfg range file to and ranges of
addresses (ranges must all fall within a unique /24).  You can also use
"ip address add" to add addresses (on IPv4, this does the same thing as
adding an alias interface while on IPv6 it merely adds more addresses to
the same interface).

>                        Thanks,


> -- 
> Jonathan Carpenter
> Linux System Administrator
> Windows System Administrator
> <The Unix Geek> 

	Mike
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