[gentoo-user] Re: martian source with unknown IP and MAC

[James]

Grant <emailgrant <at> gmail.com> writes:

> I received a suspicious prompt while browsing a financial account of mine
on my laptop so I restarted my modem but did not DHCP to it.  I immediately
received a series of type 08 00 martian sources logged to dmesg on my laptop
from a 10.x.x.x source while my local network runs on 192.168.x.x only, and
the logged MAC address does not match that of any systems on my LAN
including the modem and I don't run wifi.  Is that martian source suspicious?

Always. But it could be a benign  or mangled packet. Hard to tell
without deeper analysis


This might help [1]. As well as RFC 1812 [2]

Post back if needed. [3] 

hth,
James

[1]
http://www.cyberciti.biz/faq/linux-log-suspicious-martian-packets-un-routable-source-addresses/

[2] https://www.novell.com/support/kb/doc.php?id=3923798

[3] https://6session.wordpress.com/2009/04/08/ipv6-martian-and-bogon-filters/