Linux: Log Suspicious Martian Packets / Un-routable Source Addresses

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A Martian packet is nothing but an IP packet which specifies a source or destination address that is reserved for special-use by Internet Assigned Numbers Authority (IANA). You can log packets with un-routable source addresses on Linux operating system. This tutorial explains how to log spoofed packets on Debian / Ubuntu / CentOS / RHEL / Linux based server.

Linux: Log Suspicious Martian Packets / Un-routable Source Addresses