Thanks Balaje for finding some time.  My question was very clear - what is the MTU under vlan configuration does? I see you said l2 vlan has no effect then why cisco has not deprecated this command all these years? So, there has to be reason. Are you...

What does this mean? Recently my security team raised a concern where they started seeing some malicious traffic from our cisco 4331 router. They named it "Nanocore C2/Hosting [Crime] [Nanocore]" . Reason why I landed up here in this page. Do we have...