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kernel variables

Linux: Neighbour Table Overflow Error and Solution

I setup a CentOS Linux based Linux server running as a gateway and firewall server. However, I'm getting the following messages in the /var/log/messages log file:

Dec 20 00:41:01 fw01 kernel: Neighbour table overflow.
Dec 20 00:41:01 fw01 last message repeated 20 times


Dec 20 00:41:01 fw03 kernel: [ 8987.821184] Neighbour table overflow.
Dec 20 00:41:01 fw03 kernel: [ 8987.860465] printk: 100 messages suppressed.

Why does kernel throw "Neighbour table overflow" messages in syslog? How do I fix this problem under Debian / CentOS / RHEL / Fedora / Ubuntu Linux?
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Linux Error: Page Allocation Failure and Solution

Q. How do I get rid of an error message that read as - "Page allocation failure"?
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CentOS / Red Hat Linux IP Forwarding How To

How do I enable IP forwarding under RHEL / Red Hat / Fedora / CentOS Linux operating systems?
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