'Cisco log: Missing cef table for tableid 65535 during CEF samecable event'
in Cisco
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"
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 (bugId=CSCsx53968)
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
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