On Sun, 2003-09-21 at 21:14, Luis Duran wrote: > Everytime i get connected with my dial up ISP, i get this notice in my > /var/log/messages files: > > Sep 22 00:05:20 elebis kernel: martian source my.ppp0.ip.address from > 127.0.0.1, on dev ppp0 > > I will applreciate if you can tell me what does it means ?
"martians" are network packets that arrive on interfaces where they weren't expected. For instance, if your ethernet card is 192.168.1.0/24 and your modem is 10.0.0.1/32, any incoming 192.168.1.0/24 source address would be flagged as a martian and logged. It's usually a sign of misconfiguration and can sometimes be a sign of malicious activity. Never attribute to malice that which can be adequately explained by sloth or ignorance though :-) -- Jack Coates Monkeynoodle: A Scientific Venture...
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