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 …

You may need to download a remote file (usually IOS image, but anything goes) to the Cisco router via HTTP. The command is simple, but be aware of few caveats: Router# copy http[:full URI specification] flash[: local path to save the file] The caveats you should know: - router first …

Problem: Enterprise is under Denial Of Service Attack (DDOS) that brings down key elements of the business or the whole network at all. To track the attacker is the first step in handling the attack and unless the flood is coming from inside (most probably not in a well managed …