ICMP Timestamp Response

The GigaVUE‑OS does not respond to Internet Control Message Protocol (ICMP) timestamp requests.

The response to such a request is an ICMP timestamp response. The response can contain the date and time from a GigaVUE node, which could be used to exploit weak time-based random number generators in other services on the node, therefore this is disabled.

In addition, ICMP echo broadcasts, including timestamp requests and responses, are disabled, since ICMP echo requests may be used for Denial of Service (DoS) attacks, such as packet flooding.