What happens when one experiences a ping of death?
What happens when one experiences a ping of death?
What ICMP message types are used by the ping command?
What ICMP message types are used by the ping command?
What does an ICMP (Code 13) message normally indicates?
What does an ICMP (Code 13) message normally indicates?
What is the most likely cause behind this response?
While performing a ping sweep of a subnet you receive an ICMP reply of Code 3/Type 13 for all the pings sent out. What is the most likely cause behind this response?
What can you infer from this information?
A specific site received 91 ICMP_ECHO packets within 90 minutes from 47 different sites. 77 of the ICMP_ECHO packets had an ICMP ID:39612 and Seq:57072. 13 of the ICMP_ECHO packets had an ICMP ID:0 and Seq:0. What can you infer from this information?
What would be the next logical step that you should perform?
You are performing a port scan on a subnet that has the ICMP protocol blocked. You discover 23 live systems and after doing a port scan on each of them; you notice that they all show port 21 in closed state. What would be the next logical step that you should perform?
What could be the likely cause of this?
Clive has been monitoring his IDS and sees that there are a huge number of ICMP Echo Reply packets that are being received on the external gateway interface. Further inspection reveals they are not responses from internal hosts’ requests but simply responses coming from the Internet.
What could be the likely cause of this?
What does ICMP (type 11, code 0) denote?
What does ICMP (type 11, code 0) denote?