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Barracuda NextGen Firewall X

Log message 'Neighbour table overflow' reported in klogd.log

  • Type: Knowledgebase
  • Date changed: one year ago
Solution #00005131 
This solution replies to:
- NG Firewall firmware versions 4.2.x, 5.0.x, 5.2.x
- netfence firmware versions 4.2.x


Log messages like the following are reported in the log file "Log" > "Box" > "System" > "klogd.log":


Info     Neighbour table overflow


What does it mean?



The message is related to the state of the ARP Cache. It is recorded as soon as the ARP Cache empties itself due to a content overflow. The cache hence builds up a new.


The setting is located in "Config" > "Box" > "Advanced Configuration" > "System Settings" > "ARP Settings" > "ARP Cache Size". By default a maximum number of 1024 entries are assigned to the ARP Cache. To avoid frequent "Neighbour table overflow" notifications, this value shoul be increased.



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