How do I disable the route 169.254.0.0 / 255.255.0.0 from CentOS or RHEL 6 Linux server?
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How do I configure the Internet Protocol version 4 (IPv4) properties of a network connection with a static IP address for servers running Linux operating systems? How do I configure static IP address under Debian Linux or Redhat / RHEL / Fedora / Redhat Enterprise Linux server?
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How do I start / stop or restart networking service under Suse Linux without rebooting the server?
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How do I restart or start or stop networking service on Slackware Linux using command line option?
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How do I restart the network interface under Linux operating systems after making changes to IP configuration without rebooting the server?
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Q. How do I setup up a default Gateway for all interfaces (eth0 and eth1) under CentOS Linux 5?

A.There are different ways to setup TCP/IP hosts so that you can reach to remote destinations. The simplest one is to setup default gateway by modifying the /etc/sysconfig/network

Setup a default Gateway

Open /etc/sysconfig/network file:
# vi /etc/sysconfig/network
Setup GATEWAY={Router-IP}, if router IP is 74.86.49.129, type:
GATEWAY=74.86.49.129
Save and close the file. Here is my complete file:
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=wan.nixcraft.in
GATEWAY=74.86.49.129
You need to restart networking service:
# /etc/init.d/networking restart