How to set ip, netmask,gateway for a network interface

ghoshdastidar1980 · 10-03-2012, 01:09 AM

1.i want yo change the ipaddress,subnetmask gateway of bondeth4.
Is it possible to make it online?
if yes what are those steps i have to follow.

2. if online not possible then whats steps i need to follow.

Regards,
Ani

torchnw · 10-03-2012, 01:35 AM

You can change the IP config with ifconfig at runtime, but it won't be persistent, so look for the files /etc/sysconfig/network-interfaces/ifcfg-bondeth4 or /etc/init.d/network/interfaces, depending on your distro ( which you didn't specify ) and edit those. Then take the interface down and up again with

Code:

# ifconfig bondeth4 down
# ifconfig bondeth4 up

ghoshdastidar1980 · 10-03-2012, 02:22 AM

Hi torchnw,
Thank you.but i don't want to make it down. The below is my action plan. Please verigy & let me know your concern.

Current setting :-
bondeth4-10.217.49.23 Mask:255.255.240.0 Gateway i am not able to find ?

Requirement
bondeth4-10.217.202.18/24 gw 10.217.202.1

Action Plan:-
Ifconfig bondeth0 10.217.202.18 netmask 255.255.255.0 up.
vi /etc/sysconfig/network-scripts/ifcfg-bondeth4
IPADDR=10.217.202.18
NETMASK=255.255.255.0
GATEWAY=10.217.202.1
Now what else require.Another thing, how i will add the gateway with this bondeth4. Because the new gw what i will mention in the ifcfg-bondeth4 will be effective when i will reboot the server or service network restart ..

Regards,
Ani