In order for the LVS router to forward network packets properly
to the real servers, each LVS router node must have IP forwarding
turned on in the kernel. Log in as root and change the line which
reads net.ipv4.ip_forward = 0
in /etc/sysctl.conf to the following:
The changes take effect when you reboot the system.
To check if IP forwarding is turned on, issue the following
command as root:
/sbin/sysctl net.ipv4.ip_forward
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If the above command returns a 1, then IP forwarding is enabled. If it
returns a 0, then you can turn
it on manually using the following command:
/sbin/sysctl -w net.ipv4.ip_forward=1
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