Information
The ipignoreredirects parameter determines whether or not the system will process IP redirects.
Rationale:
The ipignoreredirects will be set to 1, to prevent IP re-directs being processed by the system.
Solution
In /etc/tunables/nextboot, add the ipignoreredirects entry:
no -p -o ipignoreredirects=1
This makes the change permanent by adding the entry into /etc/tunables/nextboot
Default Value:
0