How to set gateway in Centos/Red Hat Linux using command line

go to /etc/sysconfig/network-scripts

vi ifcfg-eth0
add a new line “GATEWAY=” as per below
DEVICE=eth0
BOOTPROTO=static
BROADCAST=***.**.**.*
HWADDR=00:0C:29:3*:15:6*
IPADDR=***.**.**.*
NETMASK=255.255.255.0
NETWORK=***.**.**.8
ONBOOT=yes
TYPE=Ethernet
GATEWAY=***.**.**.**