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What is ICMP Timestamp response?
The ICMP timestamp response contains the remote host’s date and time. This information could theoretically be used against some systems to exploit weak time-based random number generators in other services. ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
How do I turn off ICMP timestamp responses?
ICMP timestamp responses can be disabled by deselecting the “allow incoming timestamp request” option in the ICMP configuration panel of Windows Firewall. Go to the Network Connections control panel. Right click on the network adapter and select “properties”, or select the internet adapter and Select File->Properties.
What is ICMP type number for a router solicitation message?
152
ICMPv6 “type” Numbers
| Type | Name | Reference |
|---|---|---|
| 150 | ICMP messages utilized by experimental mobility protocols such as Seamoby | [RFC4065] |
| 151 | Multicast Router Advertisement | [RFC4286] |
| 152 | Multicast Router Solicitation | [RFC4286] |
| 153 | Multicast Router Termination | [RFC4286] |
What can the ICMP Timestamp response be used for?
The ICMP timestamp response contains the remote host’s date and time. This information could theoretically be used against some systems to exploit weak time-based random number generators in other services.
What happens when ICMP is blocked on a network?
A network device with ICMP blocked will not receive type 11, time exceeded, code 0, time exceeded in transit error message — notifying the source host to increase the lifespan of the data to successfully reach the destination, if the datagram fails to reach the destination [5].
What happens when the host responds to an ICMP ping?
The response of the ping will be an ICMP Time Exceeded message (this means the host responding is not the destination) or an ICMP Destination Unreachable (this means the host responding doesn’t know how to get to the destination IP address in the trace route packets).
What is the ICMP protocol and what does it do?
ICMP ( Internet Control Message Protocol) is a protocol that network devices (e.g. routers) use to generate error messages when network issues are preventing IP packets from getting through. The Internet Control Message Protocol is one of the fundamental systems that make the internet work. What is an ICMP timestamp?