Security Basics mailing list archives

Re: IP Spoofing/Masquarading


From: Jack Carrozzo <jack () crepinc com>
Date: Wed, 9 Sep 2009 09:15:12 -0400

IP routing in a general sense doesn't care about source IP. As long as
it doesn't hit any filters across the way, it'll get to the
destination. However, if the system on the other end replies, the src
becomes dest and it will either end up in that system's RFC1918 space
or be filtered.

-Jack Carrozzo

On Wed, Sep 9, 2009 at 2:19 AM, M.D.Mufambisi<mufambisi () gmail com> wrote:
I understand that IP packets can be spoofed ie change the source
address to make it look like they originated from the internal LAN.
However, when this is done across the internet, with a private IP
address in its source field, how does this packet get routed through
the internet?

Kind Regards

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