topic how to add virtual IP in redhat linux in Operating System - Linux

how to add virtual IP in redhat linux

Binu_5 — Wed, 16 Nov 2005 07:06:17 GMT

Hi All

Can somebody help me how to added virtual IPs in redhat linux .....I want to to add 100 dummy IPS to be simulated to a singe system with one ethernet card

Thanks
Binu

Re: how to add virtual IP in redhat linux

GGA — Wed, 16 Nov 2005 07:15:12 GMT

hello

ifconfig eth0:1 ipadress up
regards gga

Re: how to add virtual IP in redhat linux

Steven E. Protter — Wed, 16 Nov 2005 07:21:15 GMT

Hello Binu,

If you want it to be permenent:

cd /etc/sysconfig/network-scripts

cp eth0 eth0:0

Edit it, make sure the inside reference says eth0:0 instead of eth0.

Some prefer eth0:1

cest la vive

service network restart

SEP

Re: how to add virtual IP in redhat linux

Alexander Chuzhoy — Wed, 16 Nov 2005 07:59:35 GMT

or if you need a 100 IPs:

create a file
/etc/sysconfig/network-scripts/ifcfg-eth0-range0

Containing something like...
IPADDR_START=xxx.xxx.xxx.1
IPADDR_END=xxx.xxx.xxx.100
CLONENUM_START=1

and do:
service network restart
P.S.
The ip addresses must be in the same subnet as the primary card (i.e. if you create ifcfg-eth0-range0,then use the same subnet as eth0).