One of my customer approached me stating that almost all his cisco devices encountered a vulnerability "The UDP port scan could not complete: The remote host has remained silent for too longThis might be due to a firewall filtering UDP and/or ICMP packets"
Anybody please help me with
1. Cause of this error
2. Significance/ Effect of this error on a particular network
3. How this error can be mitigated
Please help me in assisting the customer in the best possible way
Regards
SJ