Cisco log: Missing cef table for tableid 65535 during CEF samecable event

Chen — Thu, 21 Jan 2010 10:39:19 +0000

Today I’ve noticed some strange error on my Cisco 1841 router :

%FIB-4-FIBCBLK: Missing cef table for tableid 65535 during CEF samecable event

After searching the net, i’ve found some Cisco bug that describes this.
“FIB-4-FIBCBLK errors with dns view
Symptoms

Message “%FIB-4-FIBCBLK: Missing cef table for tableid 65535 during CEF samecable event” displayed on the console logs.

Conditions

The message seems to be generated anytime a dns request is made to the router where the router then has to use the dns forwarder

Workaround
No workaround”
(Source)

This happens when you have DNS server on the device and it needs to grab the answer from the device configured DNS server (A.K.A DNS Forwarder), and each request will cause this error log.

According to Cisco, the affected device list does not include my MD release – 12.4(25b), however i do see it . (List)

List of IOS with the Fix :
12.2(33)XNE
12.4(24.6)T1
12.4(15)T9
12.2(32.8.11)SR183
12.2(32.8.1)REC186
12.4(20)T3
12.2(33.1.3)MCP5
15.0(1)M
12.4(24)T1
12.2(32.8.1)REE186
12.4(22)T2
12.4(22)MDA1
12.4(24)YG
12.4(24)GC1
12.4(22)XR
12.4(24)MD
12.4(22)YE2

Scheduled Daily Reboot of FortiGate

Chen — Tue, 19 Jan 2010 07:43:54 +0000

Recently I had to do late night restart of a Fortigate and was looking for “Reload in…”
I found it, but in Fortigate it is a little different.
It’s called Daily Restart, and if you want to use it once you need to remember to remove this command.

config system global
set daily-restart enable
set restart time 04:00
end

Now the FortiGate is configured to reboot at 4 AM (System Time).
Don’t forget to update the system clock (Use NTP, Always keeps it synced)

yurisk.info » Chen

Cisco log: Missing cef table for tableid 65535 during CEF samecable event

Scheduled Daily Reboot of FortiGate