What is fw.ipv6 input drop?

Fw.ipv6 input drop is an event or message that may appear in firewall logs or system logs on a Linux or Unix-based operating system. It indicates that an incoming IPv6 packet was dropped by the system's firewall, indicating that the packet was not allowed through the firewall for some reason.

Possible reasons for an IPv6 packet to be dropped by the firewall could include the packet containing incorrect or malformed data, not meeting the firewall's rule set, or being blocked due to a security policy or configuration setting. Dropping incoming packets is a common practice of firewall systems and helps protect systems from potential threats or unauthorized access.

It is advisable to regularly monitor firewall logs and investigate any unexpected or frequent fw.ipv6 input drop events to ensure the security of your system.