How to add IP address on Centos?

nomee786 · 08-29-2013, 12:29 PM

Can some one tell me how to add IP address on Linux Centos?

Thanks.

ArcLinux · 08-29-2013, 02:44 PM

Are you looking to add a virtual interface to an existing or additional nic card or are you looking to get your network setup initially?

vipul_vaidya · 08-31-2013, 04:12 AM

There are couple of methods for assigning IP address
for newbies you should try
#system-config-network (On GUI)

OR

#system-config-network-tui (ON CLI)

SAbhi · 09-01-2013, 10:51 PM

Quote:

Can some one tell me how to add IP address on Linux Centos?

By default it takes the IP from the ISP's DHCPas soon as you are connected to a network. if you want to assign an IP manually:

#system-config-network
firing this from command line will give you a GUI interface.

OR

Code:

vi /etc/sysconfig/network-scripts/ifcfg-eth0
and make below changes:

DEVICE=eth0 
BOOTPROTO=none
ONBOOT=yes 
NETMASK=255.255.255.0 
IPADDR=x.x.x.x                        # mention your IP address here

save and quit
restart the network service.

nomee786 · 01-29-2016, 03:39 PM

I have built two laptop with CentOS and I have configured ip addres and gateway as well.
I have cisco layer 3 switch which I am using as gateway.

But when I ping laptop to cisco switch or laptop to laptop I got an error "Host is unreachable".

Please advise.

thanks.

nomee786 · 01-29-2016, 04:23 PM

Linux Laptop connectivity with Cisco Layer 3 switch

I have built two laptop with CentOS and I have configured ip addres and gateway as well.
I have cisco layer 3 switch which I am using as gateway.

But when I ping laptop to cisco switch or laptop to laptop I got an error "Host is unreachable".

Please advise.

thanks.

MrTux · 02-03-2016, 10:47 PM

Quote:

Originally Posted by SAbhi

By default it takes the IP from the ISP's DHCPas soon as you are connected to a network. if you want to assign an IP manually:

#system-config-network
firing this from command line will give you a GUI interface.

OR

Code:

vi /etc/sysconfig/network-scripts/ifcfg-eth0
and make below changes:

DEVICE=eth0 
BOOTPROTO=none
ONBOOT=yes 
NETMASK=255.255.255.0 
IPADDR=x.x.x.x                        # mention your IP address here

save and quit
restart the network service.

You missed the gateway

GATEWAY=X.X.X.X